# NORSAR Innovation > norsarinnovation.com Main language:en_GB ## [norsarinnovation.com](https://www.norsarinnovation.com/) - [The NORSAR Software Suite](https://www.norsarinnovation.com/norsarinnovation-com/the-norsar-software-suite-article1900-1070.html) > enables operators and geophysical teams to evaluate target illumination, optimize acquisition design and reduce survey risk using advanced ray-based modelling. > **Integrated into Industry Workflows** > integrates with leading survey design tools https://www.norsarinnovation.com/products/connectors-and-plugins/ such as ActeQ, MESA, OMNI and SurvOpt, enabling seamless data exchange within established acquisition workflows. ### [Shortcuts](https://www.norsarinnovation.com/shortcuts/category1127.html) #### [NORSAR-2D](https://www.norsarinnovation.com/products/norsar-2d/) #### [NORSAR-3D](https://www.norsarinnovation.com/products/norsar-3d/) #### [SeisRoX](https://www.norsarinnovation.com/products/seisrox/) #### [MDesign](https://www.norsarinnovation.com/products/mdesign/) #### [PasMon](https://www.norsarinnovation.com/products/pasmon/) ### [Billboard](https://www.norsarinnovation.com/billboard/category1128.html) - [](https://www.norsarinnovation.com/products/) > ![Insight through modelling](https://www.norsarinnovation.com/getfile.php/1313952-1646815178/norsarinnovation.com/billboard/website_banner_insight.png ) > ![Insight through modelling](https://www.norsarinnovation.com/getfile.php/1313969-1646815323/norsarinnovation.com/billboard/website_banner_insight_mob.png%20%28content_full_width%29.webp ) - [NORSAR Software Suite 2026 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2026-is-released-article6714-1161.html) > ![NSS 2026](https://www.norsarinnovation.com/getfile.php/1325992-1777372762/norsarinnovation.com/billboard/nss2026.png ) > ![NSS 2026](https://www.norsarinnovation.com/getfile.php/1326000-1777372762/norsarinnovation.com/billboard/nss2026.png%20%28content_full_width%29.webp ) ## [Products](https://www.norsarinnovation.com/products/) > NORSAR is at the global forefront of development of commercial software products and services in the field of seismic oil and gas prospecting and microseismic monitoring. ### [NORSAR-3D](https://www.norsarinnovation.com/products/norsar-3d/) > The new NORSAR-3D unveils a revolutionary new user interface for the NORSAR software. It makes the advanced and proven NORSAR-3D technology available in a completely new and simplified user experience. - [Illumination Rays](https://www.norsarinnovation.com/products/norsar-3d/illumination-rays) > **Which survey azimuths and offsets are required to illuminate a point on the target? Does it change along the target? Which reflection angles and azimuths does a survey cover in a target point? How does the angular coverage change along the target? Where do rays propagate down to the target?** > To investigate how rays propagate down to a target, use the interactive point-and-click ray-tracing function. All rays down to a selected point on a reflector are shown, for one reflection angle or azimuth at a time. > For a more systematic and comprehensive analysis, use the illumination rays workflows. In the work-flows, many target points can be analysed, and all reflection angles and azimuths are taken into account. > The results for each target point are shown in a survey- and a target-domain rose diagram. The survey-domain roses show which shot-receiver offsets and azimuths illuminate the target points, while the target-domain roses show which reflection angles and azimuths are covered. The roses are displayed down in the target points to make it easy to see how the illumination varies across the target. > The roses are interactive: Click inside a rose to see the corresponding rays. > The analysis can be restricted to show the illumination for a particular survey. Alternatively, all rays to the target points can be used, disregarding surveys. This is very useful early in the survey planning, to get an overview of which azimuths and offsets must be involved to illuminate the different parts of the target. > *Interactive point-and-click ray-tracing for one reflection angle.* > ** > *Interactive point-and-click ray-tracing for one reflection azimuth.* > ** > *The rays to a target point for a marine survey.* > See this Illumination Ray Concept presentation http://www.norsardata.no/Seismod/marketing/iray/iray00.html for more information. - [Illumination Maps](https://www.norsarinnovation.com/products/norsar-3d/illumination-maps) > **Are the targets well illuminated? Are there shadow zones? How large migration aperture is required? How long streamers are required?** > Illumination maps show how well a target horizon is illuminated by a survey. The basic map is the hit map, which shows for a survey how many rays from shots to receivers reflect on the different parts of the horizon. Shadow zones clearly stand out on hit maps. There are more maps; they show different parameters computed along the rays, including: Travel time, reflection angle, required migration aperture, and amplitude. The maps are divided into grid cells, and for each parameter the maps show how minimum, maximum, and average value of the parameters vary across the horizon. A map can be restricted to a certain interval of another parameter. For example, separate maps can be made for different offset intervals, to show which offsets are important in a survey. Most commonly, the illumination information is put down on the target, but similar maps can also be made with the information posted in the shot or receiver locations. These maps show which shot and receiver positions contribute most to the illumination, and the maps may reveal that shots or receivers may be skipped in some areas. > *Comparison of the nominal fold, here shown on the surface, and the expected fold at the target, computed as a hit map.* > * > Illumination map showing maximum horizontal difference between common reflection point (CRP) and common midpoint (CMP). This is the required migration aperture if all reflections are to be depth migrated.* - [Anisotropy](https://www.norsarinnovation.com/products/norsar-3d/anisotropy) > **Incorporate anisotropy into your model** > within rock units results in a variation in seismic velocity that depends on the direction in which the ray is propagating. Introducing anisotropy into seismic modelling is essential to accurately reproduce the transmission of seismic energy through the earth. > The anisotropy option within NORSAR-3D upgrades the software package to enable TTI anisotropy to be included in layered models. This option enables a more realistic earth model to be constructed, resulting in e.g. an improvement in traveltimes for PSDM and tomography applications. > We have been very pleased with the imaging using the VTI anisotropy... The data on which we tested the imaging with the anisotropy option showed significant enhancement of structural detail over the migration using the isotropic travel times, which in turn was far superior to the previous prestack time migration. > -- Dr. Andrew V. Barrett, Kelman Technologies > *An example of a salt structure with several adjacent transversely isotropic shale layers where the axis of symmetry is normal to the bedding (the two top pictures). Depth migrated images are shown (from left to right) using an isotropic model, a VTI model and the TTI model. It can be seen that a good subsurface image in the vicinity of the salt dome is obtained only when using the TTI model. The VTI model shows a misfit for the lower reflectors whereas the isotropic model images them poorly.* - [Kirchhoff Modelling](https://www.norsarinnovation.com/products/norsar-3d/kirchhoff-modelling) > Ray-based seismic modeling methods can be applied at various stages of the exploration and production process. The standard ray method has several advantages, include computational efficiency and the possibility of simulating propagation of elementary waves. As a high-frequency approximation, the method also has some limitations, particularly with respect to a lack of amplitude reliability in the presence of rapid changes of the model functions representing elastic parameters and interfaces. > Given the objective of improving the applicability of the standard ray tracing method, we introduce Kirchhoff modelling to our software portfolio. It is based on the well-known Kirchhoff integral solution for calculating the seismic wavefield between a shot and receiver in the given Background Model, for a given target. The Kirchhoff integral provides a robust method for implementing seismic modelling and prestack depth migration. Thus, with this approach we are able to convert a velocity model given in depth domain to seismic data in time domain and to migrate the shot data to a depth image. Kirchhoff modelling keeps the flexibility of ray tracing (selection of a part of the wavefield, efficiency) while adding benefits known from FD modelling (diffractions). Kirchhoff modelling is slower than raytracing, but more efficient and flexible than FD modelling. > **Kirchhoff Prestack Data Workflow** > Forward modelling of seismic data is the use of geological models of the earth to simulate seismic field experiments. Models can be one, two, or three dimensional and consist of depth horizons and associated elastic properties, such as P wave velocities, S wave velocities, and densities. An application of forward modelling is for verification of structural and stratigraphic interpretations. For example, synthetic seismic sections derived from forward modelling can be compared to stacked sections to verify the original interpretation. If needed, the original interpretation or model is altered, and the process repeated until a desired correlation between the actual data and modelled results is observed. > In this contribution, we present Kirchhoff prestack data workflow, which is a powerful, robust, and flexible method to generate synthetic traces. This workflow allows to generate synthetic seismograms on either the complete set of horizons or a sub-selected set of horizons. > **Generate the data you need!** > The new Kirchhoff modelling software allows to select which part of the wave field should be included, thus it is easier to identify specific events in you real data by correlating with the synthetic seismic traces. > **Kirchhoff Target Migration Workflow** > Seismic data processing is aimed to image the earth's subsurface, that is, obtaining a picture of subsurface structure from the seismic waves recorded at the earth's surface. > Of the many processes applied to seismic data, seismic migration is the one most directly associated with the notion of imaging. Until the migration step, seismic data are merely recorded traces of waves that have been reflected/diffracted from anomalies in the subsurface. In its simplest form, seismic migration is the process that converts information as a function of recording time to features in subsurface depth. It moves dipping events to their correct positions, collapses diffractions, increases spatial resolution and is probably the most important of all processing stages. > In order to provide the complete picture to the user, we have integrated a Kirchhoff target migration workflow into the existing modelling environment. Here, the generated synthetic data will be directly transferred into the corresponding picture of the sub-surface for a given input set up. > **Find out how sensitive the migrated result is to velocity deviations.** ### [NORSAR-2D](https://www.norsarinnovation.com/products/norsar-2d/) > NORSAR-2D Ray-Modelling is the powerful, industry standard tool for 2D ray-trace modelling to understand seismic wave propagation. - [Model building features](https://www.norsarinnovation.com/norsar-2d/model-building-features-article764-877.html) > One or more 2D lines in either a 2D or 3D project environment. > Time to depth conversion of interfaces by vertical stretching or image rays. > Interval velocity estimation from inversion of stacking velocities. > Import of external horizon and elastic property data in simple ASCII or standard SEG-Y formats. > Digitizing of horizons from SEG-Y data or bitmap images. > Pre-processing, resampling and editing of sampled interface or property data using smoothing recommendations as provided by the software. > Interactive model building, modification and update by mouse control. > Generation and assignment of property fields and lateral/vertical gradients. > Integration and upscaling of well logs for property field generation. > Inclusion of overhang structures, truncations, salt, faults and other model complexities. > Multiple property field options independently for each layer in the model, including velocity, density, and attenuation as constants, gradients and spline functions. > Extension for rock physics modelling (VelRock). > Model export as 2D property grid files for external FD modelling. - [Ray-based seismic simulation](https://www.norsarinnovation.com/norsar-2d/ray-based-seismic-simulation-article765-877.html) > Shots and/or receivers can be anywhere in the model, e.g. at the surface, at constant depth, along wells, along horizons or along towed cables. > Simple test shooting for defined take-off directions. > Easy simulation of stacked sections and time-migrated sections. > Modelling of common-shot gathers for selected targets. > Inclusion of edge diffracted rays > Anisotropic ray-modelling for TI media. > Wavefront construction for efficient generation of travel-time tables. > Automatic generation of direct and primary ray codes as well as mode conversions. > No limitation for complex ray code generation (multiples). > Recording of multiple ray paths, turning rays and multiple receiver components. > Control of ray tracing parameters for balancing accuracy and efficiency of each modelling run. ### [SeisRoX](https://www.norsarinnovation.com/products/seisrox/) > SeisRoX™ is a software suite developed by NORSAR to efficiently model 3D PSDM seismic images at detailed reservoir scale. - [The SeisRoX multi-domain model](https://www.norsarinnovation.com/seisrox/the-seisrox-multi-domain-model-article968-878.html) > **Geological, Elastic and Reflectivity** > The central part of SeisRoX is the multi-domain model which consists of the following domains; > **The geological domain**: Rock-related properties including porosity, clay content, rock type (lithology, facies), fluid type, saturation and more. > **The elastic domain**: Rock-related properties such as elastic modulus, seismic impedance, seismic velocity, density and elastic moduli. > **The reflectivity domain**: Horizon-related properties like reflection coefficient, AVO/AVA parameters, etc. > The multi-domain model guides the user through the definition of a rock model for the layers in the geological domain to the automatic transformation of properties into the elastic domain, before deducing the reflectivity properties using a standard algorithm such as the Zoeppritz equations. Advanced functionality allows the user to enter the multi-domain model at any stage depending on the data they have available. For example, to facilitate 4D feasibility studies, the SimSeis workflow allows users to predict the PSDM response to production from fluid simulator data in Eclipse* format. > *Eclipse is a trademark of Schlumberger. - [SimPLI](https://www.norsarinnovation.com/seisrox/simpli-article969-878.html) > **Fast, flexible and robust simulation of 2D/3D PSDM images** > The **™** approach is a new concept (developed and patented by NORSAR) for modelling the seismic response of hydrocarbon reservoirs. By deriving the filters (which represent the total illumination and resolution effects of a survey/overburden combination) and combining these with the reflectivity output of the multi-domain model, a 2D/3D simulated seismic PSDM image of the structure in the local target can be obtained. This allows an interpreter to rapidly analyse the dynamic reservoir model in terms of seismic response, i.e.PSDM images. > The “Simulated Prestack Local Imaging” concept efficiently estimates prestack depth migrated sections without the need to calculate and process synthetic data. The patented method is a generalized convolution technique working in the 2D/3D prestack depth domain. It goes far beyond the classic 1D trace modeling as it enables the user to predict 2D/3D illumination and resolution effects in prestack acquisition. Innovative functionality coupled with pre-defined workflows and a user driven environment make applications numerous. They include, but are not limited to; survey planning, interpretation, time-lapse reservoir studies, seismic imaging and AVO/AVA analyses. > Prestack Depth Migrated (PSDM) sections are the final results of a whole seismic acquisition and processing sequence. Even in modeling studies, synthetic data are usually calculated before being processed and then pre stack depth-migrated. > considers a prestack depth migrated section as a filtered version of the Earth’s structure where the filter is locally described by the available wavenumber vectors (Hamran and Lecomte, 1993, Lecomte and Gelius, 1998, Gelius et al, 2002, Lecomte et al, 2001, 2003a). This removes the need to go through the classic process of combining synthetic-data generation and prestack depth migration to get the migrated version of the structure. > Once a filter has been created for a given survey (including source effects) and overburden, the physical properties of the target can be altered and a sequence of different model hypotheses can be rapidly generated. This can be done on a standard laptop in moments giving the user the tools to efficiently quantify the influence of the physical properties on their seismic image. As opposed to Standard 1D convolution ( poststack time-domain), the filter works directly in the prestack depth domain and contains the effect of illumination as well as lateral and vertical resolution so that the simulated image accurately represents the final PSDM image. > ** workflow** > ™ allows an interpreter to analyze the dynamic reservoir model by quickly simulating PSDM images which take into account survey characteristics, overburden effects and the reservoir properties. The survey and overburden are represented by a set of scattering wavenumber vectors. For selected locations in the subsurface, the illumination vectors are determined for each pair of source and receivers in the survey. This can be done by ray tracing prior to the analysis, and is only done once for each survey. The illumination vectors are selected according to the offset or angle intervals chosen by the interpreter. The user may also define the frequency band of interest using a given pulse. The illumination vectors and chosen wavelet are used to make the filters. These filters are applied to reflectivity grids (exported from the multi-domain model) to obtain simulated PSDM images in 2D or 3D. > *This workflow is summarized in the Figure. Using the background model, illumination vectors are calculated by ray tracing from the point of interest within the target subcube. The filter is created by combining these vectors with the source pulse. The filter is combined with the output from the multi-domain model (reflectivity data) in to simulate the 3D PSDM image. * ### [MDesign](https://www.norsarinnovation.com/products/mdesign/) > The MDesign software helps operators, service providers and regulators to evaluate and optimize different sensor networks in order to maximize their cost-effectiveness. ### [PasMon](https://www.norsarinnovation.com/products/pasmon/) > PasMon is NORSAR’s advanced solution for real-time passive seismic monitoring, designed to deliver fast, robust, and scalable detection and localization of microseismic events. Built for modern large-scale sensor networks, PasMon transforms continuous seismic data streams into actionable insights—helping operators monitor subsurface activity with high confidence, even in challenging environments. ### [Connectors and plugins](https://www.norsarinnovation.com/products/connectors-and-plugins/) > NORSAR Software Suite is integrated into industry workflows through its connectors to the most popular seismic survey design softwares on the market. ## [Services](https://www.norsarinnovation.com/services/) > NORSAR Innovation AS offers expert consulting and training services within our field, providing objective recommendations based on our unbiased, state-of-the-art technologies. ## [Support](https://www.norsarinnovation.com/support/) > NORSAR's support and maintenance service gives you access to an experienced support team staffed by senior developers ready to answer any of your questions. ### [Documentation](https://www.norsarinnovation.com/support/documentation/) > Get the documentation for the NORSAR software. #### [Installation Guide](https://www.norsarinnovation.com/support/installation-guide/) ### [Downloads](https://www.norsarinnovation.com/downloads/) > Download the latest NORSAR software releases ### [Release Notes](https://www.norsarinnovation.com/support/release-notes/) > NORSAR Software Suite release notes - [NORSAR Software Suite 2016 (2016.0.34819, June 15, 2016)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2016-2016-0-34819-june-15-2016-article2885-1259.html) > This is a bugfix and stability improvement release. It fixes an issue where NORSAR-3D Pro and Expert tools would not start on newer Linux versions. - [NORSAR Software Suite 2016.1 (2016.1.35131, July 13, 2016)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2016-1-2016-1-35131-july-13-2016-article2886-1259.html) > NORSAR-3D > This is a bugfix and stability improvement release. > Fixed a bug in the windows version that it runs only one tracer job when it can run more. > Changed default VS in Grid Layer Cake model builder to be VP/VS ratio > SeisRoX > SeisRoX 2016.1 is a major upgrade of SeisRoX. It utilizes the advanced and proven NORSAR-3D Ray Tracer which is now embedded in the SeisRoX workflows. Also, new background model building tools are introduced, and performance is significantly improved by optimized calculation and parallel processing capabilities. In addition the GUI is improved and re-organized to be more user friendly. > The new SeisRoX is fully integrated in the NORSAR Software Suite platform and is available in two different configurations: Basic and Pro. SeisRoX Basic is part of SeisRoX Pro. The Pro version is the upgrade version for existing users. > SeisRoX is released under Linux and Windows > SeisRoX is backward compatible with older versions of SeisRoX project data. > **SeisRoX Basic** > SeisRoX Basic is a flexible, efficient and easy-to-use seismic modelling software which rapidly simulates the seismic response of geological reservoir models including the effects of a complex 3D overburden and source-receiver illumination/resolution effects. > SeisRoX Basic focuses on a local scale and contains three types of workflows: > Analytic workflows: Tools to do fast track modelling when background model or survey is not available or to study the effect of a user-designed PSDM filter > Four different local-target workflows to do complete PSDM simulations with background model and survey > Utility workflows for generating property cubes and time-convolution (1D) > **SeisRoX Pro** > SeisRoX Pro includes all the Basic functionality, and in addition it contains a full-field PSDM simulation workflow. With the Pro version, larger scale modelling is done by utilizing space-varying Point Spread Functions. Detailed studies of the space-varying PSF's can be done with the new PSF focusing map. > SeisRoX Pro also includes Rock Physics transformations to describe and calculate the relationship between geological properties and the effective (average) elastic and seismic properties to be used in the modelling. With the Rock Physics functionality the seismic response of rock property changes can be studied. > In addition minor bug fixes and improvements. - [NORSAR Software Suite 2016.1 (2016.1.35174, July 22, 2016)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2016-1-2016-1-35174-july-22-2016-article2887-1259.html) > NORSAR-3D > This is a bugfix and stability improvement release. > It fixes a licensing issue for the wavefront batch tracer for NORSAR-3D Pro and Expert. > In addition, several minor bugfixes. > SeisRoX > This is a bugfix and stability improvement release. > It fixes several issues for the Full-field workflow: > Target cubes larger than 3 GB were corrupted on writing to file > Process stops if some shots are outside the model when tracing part is finished > Data cleanup problems if only one GF > Clean intermediate results if target geometry changed (only cleaned up workflow data before.) Could lead to inconsistency. > Combined tracer/full-field progress monitor. Display tracer logs. > In addition minor bugfixes and improvements. - [NORSAR Software Suite 2016 (2016.0.34492, May 9, 2016)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2016-2016-0-34492-may-9-2016-article2888-1259.html) > The new **NORSAR Software Suite** is a common framework for NORSAR software and consists of NORSAR-3D and SeisRoX. > **NORSAR-3D 2016** > NORSAR-3D 2016 unveils a revolutionary new user interface for the NORSAR software. It makes the advanced and proven NORSAR-3D technology available in a completely new and simplified user experience. > The new NORSAR-3D is available in three different configurations: Basic, Pro and Expert. NORSAR-3D Basic is part of NORSAR-3D Pro and NORSAR-3D Pro is part of NORSAR-3D Expert. > The NORSAR-3D Pro version is the upgrade version for existing customers. > **NORSAR-3D Basic** is released on both Windows and Linux while Pro and Expert are currently available on Linux. > NORSAR-3D 2016 is backward compatible with older versions of NORSAR-3D project data. > NORSAR-3D Basic is designed to perform kinematic illumination studies of any type of acquisition survey. Model elements, like surfaces and attributes can be imported or defined and user-friendly model builders can be used to set up model geometries and elastic properties. The software contains the modelling tools, Illumination Rays and Illumination Maps and runs on Linux and Windows. > **Import** > Allows the user to build a model from externally available model elements, interfaces, property grids and cubes, point sets and polylines as well as surveys like P1/90 and SPS surveys can be imported. > **Model Builder** > In many cases, simple models can be used for initial illumination studies and first survey planning steps. The basic version supports therefore to build models, e.g. if there only is a property cube, a single target horizon, or a stack of horizontal interfaces that are not interacting in a way that needs any specific consideration, preprocessing or modification > **Single Block Model Builder ** > Here, only one property cube is used. The property cube can either be imported or generated by simple layer cake models. > **Single Reflector Model Builder** > In order to generate Illumination maps a target reflector is required. The model properties above and below the target reflector can be set by either selecting property cubes or set to constant. > **Grid Layer Cake Model Builder** > The grid layer cake models can contain various surfaces which separate the layers. The property values are either constant or gradients. > **Illumination Rays** > For a systematic and comprehensive analysis of ray propagation, the illumination rays workflows should be used. Here, many target points can be analyzed, and all reflection angles and azimuths are taken into account. The results for each target point are shown in a survey- and a target-domain rose diagram. > **Illumination Maps ** > Illumination maps show how well a target horizon is illuminated by a survey. The basic map is the hit map, which displays for a specific survey how many rays from shots to receivers reflect on the different parts of the horizon. Shadow zones clearly stand out on hit maps > **NORSAR-3D Pro** includes the Basic version and in addition a comprehensive set of tools and workflows to build complex models and do illumination studies and survey planning of any type of acquisition geometries. Major new features in this version are the S-wave anisotropy in transversely isotropic media (VTI, HTI and TTI). Furthermore, this new version contains significant improvements on the survey import (SPS) and the wavefront tracer with respect to memory handling and performance. > **Survey** > Improved SPS survey import > Significant increase of performance importing SPS files for irregular surveys > Significant less disc storage for imported SPS survey > Keeping shot and receiver topology for imported SPS survey > **Wavefront Tracer** > Introducing of S-wave anisotropy (TI anisotropy) > Improved S-wave source > Ray code improvements (transparency off) > **Seismogram Generator** > Generation of seismograms for anisotropic models with S-wave ray codes. > **IMAP/SMA** > All illumination maps are updated to handle S-waves in anisotropic media. > Introduction of standard deviation for all attribute maps > **Model Builder** > See under NORSAR-3D Basic. > **NORSAR-3D Expert** includes the Pro version and in addition unlimited batch processing capabilities and access to the project results to do in-depth analysis or tailored applications. Main new feature in this version is the introduction of the Kirchhoff Target migration workflow. Furthermore, this new version supports the extraction of S-wave anisotropy parameters from calculated event set. > **Kirchhoff Target Modelling ** > New Kirchhoff Target migration workflow is introduced. It can be used to generate migrated sections from Kirchhoff prestack data. > **Event Attribute Extractor** > Adaption due to S-waves in anisotropic media (TI) - [NORSAR Software Suite 2016 (2016.0.34767, June 8, 2016)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2016-2016-0-34767-june-8-2016-article2889-1259.html) > This is a bugfix and stability improvement release for Windows. It fixes an issue for the Windows version where IMAPs could not be plotted. - [NORSAR Software Suite 2016.2 (2016.2.36117, November 28, 2016)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2016-2-2016-2-36117-november-28-2016-article2891-1259.html) > NORSAR-3D > This is a bugfix and stability improvement release. > It fixes the following issues in NORSAR-3D: > Crash in Trimesh import (Gocad Format) > Bug in 2nd derivative plots for NORSAR-3D models and property cubes > Plotting large NORSAR-3D models caused delays when plotting/unplotting other smaller objects > Grid layer cake model builder: Bug when using velocity gradients in the lowermost layer > Grid layer cake model builder: wrong gradient units > Inconsistency in mouse rotation in the viewer > Maximized polar plots popping up > Turning off *Active shot *in survey plot options caused a void in the survey display where we can expect a shot displayed as other shots. > Add option to select rotation direction in viewer when rotating with mouse movement > Time-depth conversion on surfaces in object list > Tracing jobs crashed randomly when shot similarity was on > Some tracing jobs hanged for a long time when shot similarity was on > Bug in Kirchhoff Prestack Generator when copying a workflow and then run. Green's Function Generation bug > Bug in Kirchhoff Target Migration when Green's Function steps differed between horizontal and vertical directions. Could not reuse its own Green's Function > Using an imported SPS survey in Illumination Map workflows failed > Error in illumination map color mapping when *scaler *is negative > Kirchhoff prestack and target migration did not limit selection to isotropic models > NORSAR-3D classic modules (under Tools menu) won't start on some Linux systems > SeisRoX > This is a bugfix and stability improvement release. > It fixes the following issues in SeisRoX: > Crash in Trimesh import (Gocad Format) > Bug in 2nd derivative plots for NORSAR-3D models and property cubes > Plotting large NORSAR-3D models caused delays when plotting/unplotting other smaller objects > Grid layer cake model builder: Bug when using velocity gradients in the lowermost layer > Grid layer cake model builder: wrong gradient units > Inconsistency in mouse rotation in the viewer > Maximized polar plots popping up > Turning off *Active shot *in survey plot options caused a void in the survey display where we can expect a shot displayed as other shots. > Add option to select rotation direction in viewer when rotating with mouse movement > Time-depth conversion on surfaces in object list > Sometimes crashes in final task in a Full-field run when only one illumination point > In Full-field workflows when only one illumination point, resulting seismic cube is too large > In Full-field runs, it could happen that illumination points did not completely cover the target, causing no seismic response where that was expected > When using homogenous background models, it was possible to specify Eikonal sampling, despite using analytic computations > When copying a Full-field workflow, and then changing the original workflow, an error occured that results could not be cleaned up because of dependencies > Full-field workflows: Can setup 2D target, not handled by process > Full-field workflows: Inline-Crossline defined target box was wrong > Full-field workflows: UTM option for target box is wrong. Removed > Missing right-click menus on SeisRoX utility workflows > Added warning that wavelets are zero-phased in the SeisRoX processes > Added possibility to generate PSFs and Filters after workflow was run - [NORSAR Software Suite 2017 (2017.0.37280, February 22, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-2017-0-37280-february-22-2017-article2892-1259.html) > NORSAR-3D > NORSAR-3D 2017 features a novel NORSAR-3D Pro version which is now available on both operation systems Windows and Linux. NORSAR-3D Pro 2017 includes the Basic version and in addition a comprehensive set of tools and workflows to build complex models and do illumination studies and survey planning for any type of acquisition geometries. Major new features in this version are: A complete new interactive 3D Model Builder for creating from simple to complex 3D models, a redesigned intelligent Ray Tracer workflow to study wave propagation in detail, and improved workflows to generate Illumination Maps and Synthetic Seismograms. In addition an innovative batch system is included for distributed parallel processing of large simulation jobs on a cluster of Windows or Linux machines. > The NORSAR-3D Pro version is the upgrade version for existing customers. > **NORSAR-3D Pro** > NORSAR-3D Pro includes the Basic version, and in addition it contains a comprehensive set of tools and workflows to build complex models and to do illumination studies and survey planning for any type of acquisition geometries. NORSAR-3D Pro 2017 is backwards compatible with older versions of NORSAR-3D project data, and it is released on both Windows and Linux. > **Model Builder - NEW** > Now a novel interactive 3D model builder is available. It allows to build complex 3D models, and it displays the model elements in the 3D viewer with access to all other project elements. > The model builder includes: > Use interfaces of any shape, including multi-z-valued interfaces. > Intersect and combine interfaces. > Build blocks (volumes) automatically as well as interactively with extensive graphical support. > Set P- and S-wave velocities, densities, Q-factors, and Thomsen parameters as constants, grids, or cubes independently in each block. > Use VTI anisotropy as well as axis of symmetry orthogonal to the layering. > Allow gaps and undefined areas in the models. > **Interactive Tracer workflow - NEW** > The re-designed interactive tracer can be used to analyze the ray tracing results in more details for one selected shot location. The propagated wavefronts can be plotted as well as the corresponding ray attributes such as traveltimes and amplitudes. > **Seismogram Generation workflow - NEW** > The Seismogram generation workflow generates synthetic pre-stack seismic data for a user-selected part of the wavefield based on dynamic ray tracing. Both isotropic and anisotropic models are allowed, and in these structural models any combination of reflected, transmitted and converted P- and S-waves can be propagated. > **Simulated migration amplitude workflow - NEW** > Simulated Migration Amplitude (SMA) maps show estimates of how the amplitude will vary along the target reflector after pre-stack depth migration. This workflow allows you to investigate effects on illumination including attenuation effects in the overburden as well as varying reflectivity at the target. The Simulated Migration Amplitude workflow does not only compute the SMA maps; in addition it computes all the attribute maps that are also made in the Illumination Map Workflows. > **Distributed parallel processing – NEW** > When running a workflow, it is distributed over all available CPU's and cores on the local computer. This improves computer speed significantly. In addition, it is also possible to distribute these jobs to other computers available in the network. The execution time of the workflow will decrease dramatically. > In addition, minor bug fixes and stability improvements. - [NORSAR Software Suite 2017.1 (2017.1.38070, April 21, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-1-2017-1-38070-april-21-2017-article2893-1259.html) > NORSAR-3D > **NORSAR-3D 2017.1** features a novel **NORSAR-3D Expert** version which is **now available for both Windows and Linux** operating systems. NORSAR-3D Expert 2017.1 includes the Basic and the Pro version and in addition a comprehensive set of tools and workflows to build complex models and do illumination studies and survey planning for any type of acquisition geometries. > **Major new features in this version are:** > A redesigned efficient batch wavefront tracer workflow, which makes it very easy to re-use tracing results in various applications. Thus, survey planning studies become much more efficient and flexible. > The new Expert version contains an Exploding reflector (NIP) workflow, a traveltime cube generator and more advanced functionalities in the recently upgraded model builder. These additional functionalities enable the user to build highly complex models with various input elements and adapt to the requirements of ray tracing. > **NORSAR-3D Basic** > NORSAR-3D Basic provides comprehensive information about the coverage of subsurface targets, ranging from overview maps of the entire target area to detailed analysis of angular and azimuthal coverage of selected points of interest. The studies can be survey-independent, providing the upper possible illumination limit, only restricted by the subsurface properties; or the illumination capabilities can be studies for a specific survey. > **Import** > Support for IRAP ASCII and binary grids > In addition, minor bug fixes and stability improvements are done for the NORSAR-3D Basic version. > **NORSAR-3D Pro ** > NORSAR-3D Pro includes the Basic version, and in addition it contains a comprehensive set of tools and workflows to build complex models and to do illumination studies and survey planning for any type of acquisition geometries. NORSAR-3D Pro 2017.1 is backwards compatible with older versions of NORSAR-3D project data. > **Model Builder** > Improved cutting of two interfaces > Improved plot options > Adding option for arbitrary symmetry axis for TTI anisotropic media > **Prestack Kirchhoff Modelling** > Fixed bug when using different sampling for the GF’s in survey and target area > **Wavefront Tracer** > Fixed bugs regarding the source mechanism type single force in the vector definition in the z-component. > **Import** > Improved surface import > **Export** > Export XYZ Freepoint, Inline/Crossline XYZ Freepoint, Inline/Crossline Z Freepoint grids. > Export Trimesh > **Viewer** > Hot cursor on shot position > In addition, minor bug fixes and stability improvements. > **NORSAR-3D Expert** > NORSAR-3D Pro includes the Basic and Pro version, and in addition it contains: > **Model Builder Expert - NEW ** > Now a novel interactive 3D model builder expert is available. It contains all functionalities of the Pro version and thus allows to build complex 3D models, and it displays the model elements in the 3D viewer with access to all other project elements. In addition the model builder expert includes: > Use interfaces of any shape, including multi-z-valued interfaces. > Intersect and combine interfaces. > Extrapolate Interfaces. > Detailed, interactive editing of interfaces. > **Model Gridder - NEW ** > Make property cubes from any existing NORSAR-3D model is now available, this functionality allows to build background models with different smoothing operators suitable for e.g., the traveltime generator workflow. > **Interactive Wavefront Tracer - NEW** > The re-designed interactive tracer can be used to analyze the ray tracing results in more details for one selected shot location. The propagated wavefronts can be plotted as well as the corresponding ray attributes such as traveltimes and amplitudes. > **Exploding Reflector (NIP) - NEW** > The Exploding Reflector (Normal Incidence Point) tracer provides fast modelling of the reflections for zero-offset survey geometries. > **Traveltime Generator - NEW** > This workflow allows in an easy to use manner to generate traveltime cubes which can be used for, e.g. prestack depth migration. > **Batch Wavefront Tracer - NEW** > This new workflow allows to compute ray attributes for large surveys in batch mode. These results can afterwards easily re-used in all other application workflows, such as Seismogram generator and Simulated migration amplitudes. > **Event Attribute Extractor – NEW** > All ray attributes generated by the wavefront tracer can be accessed and exported in ASCII format. > **Kirchhoff Target Modelling** > Kirchhoff Target migration workflow can be used to generate migrated sections from Kirchhoff pre-stack data. This workflow can be used for e.g. velocity sensitivity studies. > In addition, minor bug fixes and stability improvements. - [NORSAR Software Suite 2017.1 (2017.1.38086, April 28, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-1-2017-1-38086-april-28-2017-article2894-1259.html) > NORSAR-3D > This is a bugfix release which addresses the following issues: > Illumination Map and Simulated Migration Amplitude workflows: > Error in job subdivision for some survey geometries leading to shots not being used in the illumination mapping process. > Missing online help in the Event Attribute Extractor. > Problems running anisotropic models in the NIP tracer. > SeisRoX > This is a bugfix release which addresses an issue in the SeisRoX Full-field workflows: > Crash in SeisRoX Full-field, primarily on high latency file systems, where multiple processes try to create the same directory concurrently, causing a race condition. - [NORSAR Software Suite 2017.1 (2017.1.38170, May 26, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-1-2017-1-38170-may-26-2017-article2895-1259.html) > NORSAR-3D > This is a bugfix release which addresses the following issues: > **Illumination and Simulated Migration Amplitude workflows** > Some filter- and multi-map attributes did not work > Error when changing workflow contents and generating new maps on a predefined batch tracer workflow: > Temporary illumination map groups are not deleted after generation, which causes problems when rerunning workflows. They also take up unnecessary disk space. > **Illumination function operator** > Ascii free point data import onto existing illumination map groups did not work > Select map from another illumination map group did not work > **Kirchhoff prestack modelling** > Recover functionality after jobs had crashed did not work. Results were corrupt and recover did not work > **Kirchhoff Target Migration** > Noise was not added to results > **Surface Import** > Bug when analyzing freepoint grids with specific axis layouts > Minor change: For ascii x-y-z freepoint readers, lines starting with “#” are treated as comments and will not break import > Enable loading of trimesh files with multiple faces, where vertex indexing restarts at every face > **SPS Survey Import** > Bug occasionally causing empty surveys > **General Model Builder** > Bug in plotting variable properties in blocks > **Model building tools and object list properties** > Long file names causing property cube smoothing to fail > **Object list illumination map display** > Multimap sorting now consistent with workflows > SeisRoX > This is a bugfix release which addresses the following issue: > **SEG-Y Export for all angle ranges** > Now exports one SEG-Y cube for each angle range specified in the PSDM simulation settings instead of just the summation cube - [NORSAR Software Suite 2017.2 (2017.2.38506, July 4, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-2-2017-2-38506-july-4-2017-article2896-1259.html) > This release contains the following updates and fixes: > Common NORSAR Software Suite functionality > **SEGY Property import, SEGY Seismic import** > Added option to specify a valid data range for property values also for (velocities and density) **(New)** > Importing large cubes (typically 2GB+) sometimes led to write failure when storing the NSS cube, especially on Windows. Now more robust writing. > On importing non-standard property types, the property type name was blanked out. Fixed now > **VSP Survey generator** > Fixed limitation in line length for shot grid surveys > **Workflows – general** > Fixes on archiving > Recovering workflows using the tracer would eventually lead to only one tracer job being run > **Model Builder** > Remove value-range in property functions: Now the values in the range are replaced by no-values, not a default, valid constant value. > Property functions and interfaces can now be stored and removed . > Clipping of interfaces by polygons is improved. > Block relations for multi-z-valued interfaces are shown and can be set. “+” and “-“ replaces “Above” and “Below” for this type of interfaces. > To support the “+” and “-“ specifications, the hot cursor information includes plot of the positive interface unit normal. > Fixed to make attenuation and Thomsen property functions by interpolation. > Fixed to load model with non-VTI anisotropy axis of symmetry. > Removed some unnecessary warnings when a model is checked for validity. > Minor fixes of user interface details. > NORSAR-3D > **Kirchhoff Target Migration workflow** > Unit conversion when specifying aperture settings in a project not defined in km units fixed > Error on interpreting receiver depths from pre-stack SEGY header fixed > Error with blank results when running a workflow for which two distinct Greens Functions are generated fixed > Workflow names with lengths greater than approx. 70 characters always failed. Now this limit is significantly higher > Sometimes when rerunning after a change in parameters, workflow stalled. Now fixed > More robust failure handling on Greens Function reading. Files were not closed > **Kirchhoff Prestack workflow** > Workflow names with lengths greater than approx. 70 characters always failed. Now this limit is significantly higher > Artifact in seismic results due to lookup table aliasing. Removed lookup table when not specified > Inconsistent units in workflow setup > Remove shot similarity in Greens Function Generation > Fix bug that changes in advanced tracing parameters was not taking effect > More robust failure handling on Greens Function reading. Files were not closed > When finding geometric bounds of a target model, now only selected horizons affect the results > **Toolkits** > Range check in grconf2.f, as suggested by PGS > **Ray path generator (Classic tools)** > Ported to handle new event sets > **Tracer workflows** > Added option to plot wavefronts as wireframes > Added dialog based retracing, where receiver topology, and TravelTime, Offset, Aperture, Amplitude filters can be set > Stored wavefronts were plotted at the wrong time step if tracing time step was not 0.1s > Recover did not work after batch tracing canceled. Always restarted. Enabled recover > **Seismogram generator** > Incomplete result tree, and crash when checking the “Results” box > SeisRoX > Added functionality > Calculate Time attribute cubes based on VP in the Local-target PSDM simulation workflow > Export “Difference cubes” as SEGY based on base, and monitor, time attribute cubes > Fixed crash when plotting an empty property > Fixed crash when deactivating "no clipping" in viewer > MDesign > Sensors can be set enabled/disabled directly in the workflow setup > Unit can be changed for Location Uncertainty results > Sensor files can be used in the NORSAR-3D Traveltime Cube Generator workflow - [NORSAR Software Suite 2017.1 (2017.1.38511, July 5, 2017)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2017-1-2017-1-38511-july-5-2017) > This is a bugfix release which addresses an issue where in a certain situation the project could become corrupted. - [NORSAR Software Suite 2017.2 (2017.2.38627, August 10, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-2-2017-2-38627-august-10-2017-article2898-1259.html) > NORSAR-3D > This is a bugfix release which addresses the following issues: > **N3D Model display** > Volume resolution only worked from Models->3D object list item, not when right-clicking on the model > **Various workflows** > Topological shot selection did not work properly for classic NORSAR-3D inline/crossline surveys > **Event Attribute Extractor** > Topological shot selection did not work properly for classic NORSAR-3D inline/crossline surveys > **Common Shot Wavefront Tracer workflows** > Error in index conversion for classic NORSAR-3D inline/Crossline surveys caused errors in retracing > For some imported SPS surveys, the tracer failed to read receiver subselections for a shot, resulting in failed tracer jobs > **Exploding Reflector (NIP) Wavefront Tracer** > On Linux version, total geometrical spreading, and hence event amplitudes were 0 for all events > **Seismogram Generator** > Running seismogram generation based on an Exploding Reflector workflow always failed > Ray code subselection did not work properly > **Kirchhoff Prestack workflow** > Plotting of model and survey did not work > Receiver position in the generated SEGY headers were wrong for receiver indices>50, causing problems for migration > In addition, minor bug fixes and stability improvements. - [NORSAR Software Suite 2017.2 (2017.2.38812, September 14, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-2-2017-2-38812-september-14-2017-article2899-1259.html) > NORSAR-3D > This is a bugfix release which addresses the following issues: > **N3D Event Attribute Extractor** > Minor GUI issue with menu items listed multiple times > **Illumination Map and Simulated Migration Amplitudes workflows** > Problems with job subdivision when running a large Inline/Crossline survey generated in classic NORSAR-3D > **Interactive wavefront tracer workflow ** > Time steps in storing of wavefronts were wrong if other than default time sampling > **Grid Layer cake Model builder** > Check for conformal grids sometimes failed, causing initially conformal grids to be refused > **Workflows using wavefront tracer** > Surveys named with prefix "z_" were treated as internal auto generated surveys, and deleted when settings were changed > **Seismogram Generator Workflow** > Removed hard limit of 10001 samples per trace > **General model builder** > Added an option when assigning interfaces to blocks, to just add the selected interfaces to the block instead of replacing > Fixed bug with missing information in block-interface relation table > SeisRoX > This is a bugfix release which addresses the following issues: > **Workflows using wavefront tracer** > Surveys named with prefix "z_" were treated as internal auto generated surveys, and deleted when settings were changed > **SeisRoX Full-field workflows** > Illumination functions were always empty if layered 2D background models were used - [NORSAR Software Suite 2017.3 (2017.3.39145, October 20, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-3-2017-3-39145-october-20-2017-article2900-1259.html) > NORSAR-3D > **Image ray tracer workflow - NEW** > This new workflow constructs time surfaces (time grids) corresponding to **time migrated horizons** from a given NORSAR3D depth model. > **NORSAR-MESA Connector (Windows only) - NEW** > The MESA-NORSAR connector provides direct, fast transfer of data between MESA and NORSAR. > Surveys designed in MESA can be loaded into NORSAR. > Illumination maps computed in NORSAR can be loaded into MESA. > **SEGY property import** > Improved symmetry axis import for TTI models. > Improvements in handling of SEGY files with incomplete geometry information. > **Modelling project edit** > Improved unit handling when creating a project using a grid template. > **Grid Import** > Option for skipping header lines did not count commented lines. > **Object list** > Added listing of symmetry axis cubes. > **Viewer** > Added display of symmetry axes in models > Fixed bug in plotting of NORSAR-2D models with non-zero x-origin > **Improved unit handling** > Support for US Survey feet. > **Batch wavefront tracer workflow** > Active shot can now be selected in graphics in addition to the workflow results list. > **Tracer workflows** > Enable setting retrace accuracy without having to re-do the retracing. > Added a timeout to prevent "eternal" waiting for rays to plot. > Added warning if there are no results for a selected shot/ray code. > Fixed bug in setting single force source vector. Vector component was not allowed to be negative. > Improved handling for invalid shot positions for S-sources. > Some dense surveys originating from SPS-import were not properly read into the tracer. > **Seismogram generator** > Did not properly support anisotropic S > Require inclusion of reflection/transmission effects when single force S-source > **Travel time cube export** > Incorrect shot coordinates in exported SEGY > **General Model Builder** > Display interfaces with borders as default, such that internal borders are visible > Splitting an interface in topologically disconnected parts, now also available in horizons view > Improved handling of switching between different model building modes > **Single block model builder** > Fixed bug causing an error when trying to generate a model with very small smoothing parameter ( - [NORSAR Software Suite 2017.3 (2017.3.39218, November 20, 2017)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2017-3-2017-3-39218-november-20-2017-article2901-1259.html) > This is a bugfix release which addresses the following issues: > **Illumination Map Workflows, Simulated Migration Amplitudes workflows** > Map generation failed if there were blanks/spaces in the path to the modelling project. (Windows only, blanks/spaces in project path is not supported on Linux.) > **Wavefront tracer** > Fixed an issue in velocity lookups that occasionally caused shots to be reported as failed when they were not, if property values are “invalid” > **Interactive wave front tracer workflow** > More efficient storing of wavefronts. (Note: Earlier versions of NORSAR Software Suite will not be able to read wavefronts stored with this version) > **Distributed job execution** > Allow using RSH instead of SSH when starting distributed scheduling agents > **3D Viewer** > Fixed bug in obtaining value range for 1st order and 2nd order derivative plots in models - [NORSAR Software Suite 2018 (2018.0.39522, January 12, 2018)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2018-2018-0-39522-january-12-2018-article2902-1259.html) > **New functionality** > **Areal filters** > Areal filters based on logic combinations of polygons. These new filters can be applied in illumination map/SMA generation and retracing. > **Framework and Viewer** > Added option to display property slices without interpolating data values > Added option to select multiple surfaces for delete in object list > **Illumination/Simulated Migration Amplitudes Maps** > A specific map is generated by combining the 'Target SMA Amplitudes' and the 'Constant Reflectivity Target SMA Amplitudes'. For this map, the effect of Survey and Overburden is removed, resulting in a sort of 'true amplitude' map, quantifying an approximation of an average reflection coefficient for the reflection angles involved. This map attribute is called '**SMA Normalized'**. > Added histogram for attribute plots > **Survey generation** > A new survey generator for defining surveys for different shot geometries, where the receivers are located on a regular 3D grid. > **SeisRoX** > Simplified way to generate multiple offset based survey sub-selections. > **Bug fixes and improvements** > **Event attribute Extractor** > Blanks in the project path handled also on windows. > Reflection coefficient phase was displayed in radians even if degrees was specified. > Wrong dip values on shot take-off vector. > **SEGY Property Import** > Handle sample formats 2 and 3. Previously only sample formats 1 and 5 were handled. > Bugfix on import large SEG-Y property cubes. > **GoCad TriMesh Import** > Added option to specify whether Z axis is pointing up- or downwards. > **Illumination Map/Simulated Migration Amplitude workflows** > When a project is defined in other units than km, multi-map ranges listed were wrong for some attributes. > When generating maps from a tracer workflow with multiple ray codes defined, the ray code display in the workflow was wrong > Cleaning up unfinished illumination map and SMA workflows was incomplete if parallel, which could cause failure when re-running > Fixed crash when setting up advanced color maps > Advanced color maps not displayed by color legend > **Simulated Migration Amplitude Workflows** > Improved default parameters for constant impedance map generation > **Wavefront Tracer workflows** > Added additional advanced parameters for removal of rays. Max relative geometrical spreading > Receiver topology sub-selection in retrace parameters were not updated when changing workflows > If S-velocity was illegal for some shots, and one or more ray codes started with an S-segment, the tracing failed > Linux only: Allow for using rsh when starting remote processes > Linux only: Allow to specify external directories for event storage > **Modelling Project Setup** > Wrong z-unit used at some places when the project is defined in kfeet > **General Model Builder** > Only interfaces that are shown in the interface list can be selected for editing. > **Framework and Viewer** > Fixed bug in reflectivity plot of SeisRoX models appearing when some positions are undefined > In addition, stability and bug fixes. - [NORSAR Software Suite 2018 (2018.0.39597, February 22, 2018)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2018-2018-0-39597-february-22-2018-article2903-1259.html) > This is a bugfix release which addresses the following issues: > **Wavefront tracer** > Handle rare cases in anisotropic models where numerical instability causes travel time computations to collapse and output faulty travel times. > **Distributed machine setup** > Added a consistency check on remote machines to enable a quick fix if remote machines point to a different version of the software than the front-end machine. > It will work for homogenous systems with standard setup. > **Kirchhoff Prestack Modelling Workflow** > Improved scalability on job distribution > More efficient cleanup in final merge task > Fixed a bug in resource probing when recovering a failed workflow run > Note: Failed or canceled workflows, which have been run with older NSS versions, must not be recovered. Require full re-run. > **Kirchhoff Target Migration Workflow** > Fixed bug in computing target bounds from Kirchhoff prestack target model if no sub-area was selected**.** > Improved scalability on job distribution. > More efficient cleanup in final merge task. > Note: Failed or canceled workflows, which have been run with older NSS versions, must not be recovered. Require full re-run. > **License handling of sub-processes** > More efficient license checking to avoid license server crash on heavily parallelized workflows. > **Project selection** > When entering a path in the project directory field of the main window, a project selector pops up if the path is not a valid project. > **Common Shot Tracer – Travel time cube workflow** > Fixed problem with shot index in SEGY export of travel time cubes. > Archiving: Include shot index information. > **Property operations (object list)** > Unit conversion error in "Extrapolate distance" field. > **Time-Depth conversion of grid surfaces** > Fixed handling of undefined positions. - [NORSAR Software Suite 2018 (2018.0.39652, March 26, 2018)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2018-2018-0-39652-march-26-2018-article2904-1259.html) > This is a bugfix release which addresses the following issues: > **SeisRoX Local - Survey workflows** > Bug in computation of Green's Function survey from some multi-survey input geometries when the individual surveys were flat and at different depths. This could lead to empty results > **NORSAR MESA Connector** > Enable NORSAR Software Suite side of MESA connector on linux > **Survey Generator - Fixed survey** > Failed to generate fixed survey when the project path contained spaces > **Tracer workflow result logs** > Showed the wrong CPU time > **Common shot wavefront tracer** > Missing help on ray removal parameters > **Eclipse model import** > Occasional crash in preview mode > **SEGY Property Import** > Misleading information text when importing symmetry axes. Not all components listed - [NORSAR Software Suite 2018.1 (2018.1.40223, July 3, 2018)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2018-1-2018-1-40223-july-3-2018-article2905-1259.html) > NORSAR Software Suite 2018.1 is a new main release featuring new functionality for time-depth conversion and an enhanced Kirchhoff Target Migration allowing for both isotropic and anisotropic models. In addition, several improvements and bug fixes are included. > Release details > New functionality > Generate time-depth functions from velocities defined in time domain > Time-Depth conversion of property cubes and seismic cubes > Kirchhoff Target migration for dynamic ray tracing results which allows for both isotropic and anisotropic velocity sensitivities studies using Green’s functions for P-waves Bug fixes and improvements > **Framework** > Legacy NORSAR-3D tools in separate sub menu > Fixed crash in reflectivity viewer on unexpected input > Support for property functions in time domain in object list > Windows version: Removed option to run NSS from installer (could be run as wrong user.) > **3D-Viewer** > Fixed unit bug in *Set Home View* > Different default background in time- and depth viewers > **2D-Viewer** > Fixed bad axis orientation for X-Y view > **Import** > Fixed Eclipse model incomplete when imported to NORSAR > Fixed Crash using imported Eclipse model > **Illumination Ray Export** > Fixed wrong attribute value exported for incident angle and reflection angle > Fixed incident azimuth not normalized in range [0, 360] degrees > **Export of NORSAR regular cubes to SEGY** > Fixed data not sorted according to project Inline/Crosslines > Fixed inconsistent use of trace header fields to define z0 > Stability fixes > **Model Building** > Fixed bug in converting a 2D model with varying properties to a 2.5D model > Added undo for selected functionality in general model builder > Fixed bug selecting block from the table view in property tab in general model builder > Stability fixes on functionality for editing interfaces in general model builder > Fixed bug in projection of interface onto another. Interface list was repeated in pull-down menus > Added possibility to delete incomplete models > **SeisRoX Target Model Editor** > Fixed crash in generating elastic properties from geological properties > **Convert N3D Model to Target Model** > Fixed crash for empty interfaces > **Remote Machine Setup** > New: Allow for setting common machine settings for a list of machines > Improved check on path consistency > **Workflows** > New option to set a static shot centered work box > New buttons to collapse or expand workflow tree view > Fixed bug in dynamic shot centered workbox for specific survey types > Bug in plotting of dynamic workbox based on shot selection in workflow > Minor improvements in advanced ray code editor > Fixed bug in CPU time from tracer job > **Illumination Ray Workflow** > Fixed unit conversion error in offset grid setup > **Illumination Map Workflow, Simulated Migration Amplitudes Workflow** > Option for filtering out events with supercritical reflections was ignored in generation, always allowing all events, unless a topological receiver subselection was defined, in which case the value was wrongly handled > Added option to filter on all, first or most energetic event > Fixed frequent crashes on cancelling generation process > Improved archiving if generated from tracer workflow results > **Seismogram Generation Workflow** > Improved archiving if generated from tracer workflow results > **Kirchhoff Prestack Modelling Workflow** > Allow survey subselection in Kirchhoff modelling > **Kirchhoff Target Migration Workflow** > Fixed bug in recovering of failed processes > **SeisRoX Workflows** > Fixed 1D models could not be selected if there was a "." In the name > Fixed bug in recovering a failed Full-field process when running in remote execution mode > Fixed bug in setting up local target box defined in InLine/CrossLine or UTM coordinates > Allow multiple target models/variants for utility property cube generation > Fixed bug in listing of time converted results > **Wavefront Tracer workflows** > Improved shot selection in interactive tracer, enabling selection from the 3D viewer > Fixed unit bug in retrace accuracy dialog > Fixed bug in wavefront plotting which could cause crash if unexpected wavefront parameters > Fixed bug in export of travel time cubes as SEGY. (Missing source depth) > Fixed bug in travel time cube generation: Kept projection when defining shots from point set or sensors > **MDesign Workflows** > Fixed wrong velocity used in Detectability and Location uncertainty > **Ray Path Generator (legacy, Linux)** > Fixed blocking bug not handling new tracer results > In addition: Many minor stability fixes and improvements and improved help. - [NORSAR Software Suite 2018.1 (2018.1.40336, September 14, 2018)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2018-1-2018-1-40336-september-14-2018-article2906-1259.html) > This is a bugfix and maintenance release which addresses the following issues: > **Illumination Map, Simulated Migration Amplitudes** > Fixed a bug in handling of complex SPS-type surveys. Too restricted in how many receiver sub cubes were allowed for a shot. > Fixed bad handling of tracing results with static event storage > Fixed that export of Survey domain illumination maps frequently failed with error that no geometry defined > **Tracer workflows** > Fixed event storage policy menu not correctly available in Advanced tracing parameters. > Fixed that retracing and reflection/arrival point plotting could not handle static event attribute storage, and non-standard event storage order > Fixed that retracing failed without warning when attributes required for retracing were not stored in results. Added warnings. > Retracing: Fixed a bug in “Acceptance distance” leading to unexpected results from changing the parameter > **Event Attribute Extractor** > Fixed bad handling of tracing results with static event storage > **Framework** > Fixed that dots in object names (for example models) caused unexpected behaviour > **General Model Builder** > Fixed that interface lists in horizon- and block editing did not update correctly after a split operation - [NORSAR Software Suite 2019 (2019.0.41061, May 16, 2019)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2019-2019-0-41061-may-16-2019) > **NORSAR Software Suite 2019** introduces the advanced and powerful **NORSAR-2D Ray Modelling** tool in a completely new user-friendly wrapping. It is the first step towards a full integration in the NORSAR Software Suite framework. > This first version unveils a sophisticated 2D Model Builder, supported on both Linux and Windows. The 2D Model Builder is available in all versions of NORSAR Software Suite. > In addition, NORSAR-3D is extended with support for fiber optics (DAS) modelling and new functionality for VSP modelling. Several improvements and bug fixes are also included. > Release details > **2D Model Builder** > A completely new tool to build 2D ray tracing models. > Fully integrated digitizing tool using a background image. > Convert seamless from 2D to a 2.5D model. Use 3D interactive tracing. > **Illumination Map** > New DAS VSP filter. Filter by incident angle to the DAS cable. > Display VSP attributes along a well. > **Event Attribute Extractor** > Export computed incident angle to the DAS cable. > Apply filter on the incident angle before exporting. > Export relative amplitude response along DAS cable. > **MESA Connector** > Associate the exported attributes with the individual shots and receivers. Allows the attributes to be used on shot and receiver level in MESA Survey design. > **SeisRoX** > Added subselection of PSDM simulation results when exporting as SEG-Y cubes. > Added option for scaling PSDM simulation results when exporting as SEG-Y cubes. > Added option for resampling PSDM simulation results when exporting as SEG-Y cubes. > **Bug fixes and improvements** > Improved re-tracing in the Wavefront tracer, IRAY and Flowerplot. > Improved Color bar handling. The user can now click directly on the color bar to change settings. > Fixed wrong units for the model box in the single block model builder. > Fixed wrong units in make analytic property grid. > Fixed crash when clipping property inside block in the general model builder. > Fixed that extrapolation of an interface could distort the interface grossly. > Fixed issues with smoothing of S-wave velocities. > Fixed that was not able to make a receiver sub-selection in workflows. > Fixed slow workflow list update if large survey. > Fixed error in grid layer cake model if too long interface names > Improved interface intersection (cut) in the general model builder. > In addition: Many minor stability fixes and improved help. - [NORSAR Software Suite 2019 (2019.0.41338 September 6, 2019)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2019-2019-0-41338-september-6-2019-article2908-1259.html) > **NORSAR Software Suite 2019** has introduced the advanced and powerful NORSAR-2D Ray Modelling tool in a completely new user-friendly wrapping. It is the first step towards a full integration in the NORSAR Software Suite framework. A sophisticated 2D Model Builder has been unveiled, supported on both Linux and Windows. The 2D Model Builder is available in all version of NORSAR Software Suite. In addition, NORSAR-3D is extended with support for fiber optics (DAS) modelling and new functionality for VSP modelling. > This bug fix release includes further improvements and bug fixes. > Release details > **Survey** > More robust handling of using shot line selection in survey import SPS. > Improved performance of display of large surveys and handling in workflows. > Improved handling of undefined shot and receiver positions that caused problems in *SeisRoX* as well as *Illumination Rays* and *Interactive Wavefront Tracer* workflows. > **Properties** > Improved handling of undefined values in property cube smoothing. > Fixed issue with window layout in SEGY Property Import (user defined). > **Illumination Rays (IRAY)** > *Survey Dependent IRAY* Workflow: > Fixed empty Rose Plot for anisotropic models. > *Survey Independent IRAY* Workflow: > Fixed bug accepting too many contributions. > Fixed empty Rose Plot due to one invalid ray. > Better error handling to avoid unwanted empty roses. > **Seismogram Generator** > Introduced receiver sub-selection, except of SPS and P190 type surveys. > **3D General Model Builder** > Improved smoothing and extrapolation, especially for not strictly single-valued interfaces. > Improved clipping by polyline - clip all the way through. > Improved adaptive triangulation algorithm to get fewer triangles in gridded surface uploaded from Objects’ list. > **2D Model Builder** > Implemented coordinate conversion in horizon import/export. > Warning if imported horizons are not on a section. > Introduced interface splitting. - [NORSAR Software Suite 2019 (2019.0.41407 September 30, 2019)](https://www.norsarinnovation.com/release-notes/norsar-software-suite-2019-2019-0-41407-september-30-2019-article2909-1259.html) > This is a bugfix and maintenance release which addresses the following issues: > **Survey** > Improved display of indices in survey subselection editor. Can now see all digits. > **Illumination Maps (IMAP), Survey Domain Workflows** > Fixed crash when mapping into shot points or receiver points. Happened mostly with SPS type surveys. > Fixed that some receiver point coordinates were distorted in the maps. > Fixed that making maps in CMP domain sometimes caused a crash. > **Make 2.5D model from 2D model ** > It was possible to make an illegal 2.5D model from a 2D model which caused a crash. Will now show an error message when making a 2.5D model from an incomplete 2D model. > In addition: Minor stability fixes and improvements. - [NORSAR Software Suite 2019 (2019.0.41576 November 4, 2019)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2019-2019-0-41576-november-4-2019) > This is a bugfix and maintenance release which addresses the following issues: > **Tabulated Rock import** > Added an extra warning message in the rock plotter if there are undefined values in the trock > **Remote Batch** > Added more logging possibilities for the remote batch job agents > **3D Model Builder** > The Extrapolate function has been modified to make more irregular interface triangle patterns. This is more robust in many processes. Interfaces are as smooth as before. > The Cut functions now have a user-option to exit if the cut process most likely will result in many small pieces. This can in particular happen if you try to cut by each other two interfaces that have already been cut by each other. > **General Ray Code** > Fixed bug causing a Registration parameter to always be ON - [NORSAR Software Suite 2019 (2019.0.41863 January 21, 2020)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2019-2019-0-41863-january-21-2020) > This is a bugfix and maintenance release which addresses the following issues: > **Distributed Job Scheduling** > Fixed that remote machines would not start on some network setups > Fixed that remote machines would not start if master port was changed without restarting NORSAR Software Suite > Added more logs and troubleshooting scripts > **SeisRoX Full-field Workflows** > Fixed that full-field workflows would fail when running distributed > **IMAP** > Fixed crash when displaying results > **General Ray Code** > Fixed bugs in ray code generation > **3D Model Builders** > Faster loading of models in general model builder and when plotting > Fixed bug in generating property by interpolation between horizons > Show warning when editing a model if elements used to create the model are missing - [NORSAR Software Suite 2020 (2020.0.42148 March 18, 2020)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2020-2020-0-42148-march-18-2020) > **NORSAR Software Suite 2020** is a new main release featuring new functionality as DAS VSP seismograms and diving wave attribute maps. > A major upgrade to the inherent 2D functionality is introduced, a 2D modelling tool that allows for interactive ray tracing and survey definition. > In addition, several improvements and bug fixes are included. > **New functionality ** > 2D modelling tool > Interactive common shot ray tracing > Interactive survey definition > Synthetic seismograms > DAS VSP seismograms > Diving wave attribute map > Triple source survey type > **Bug fixes and improvements** > Improved SPS survey projection > Remote batch improvements > Fixed Kirchhoff Target migration filter options that did not work probably > Improved performance for single survey lines in 2D viewer > Added missing help for one Illumination attribute map > Added survey subselection to Illumination map and seismogram generation workflow > Added SEGY export option for local SeisRoX workflows results in time > Fixed bug in IRAY plotting when using exaggeration for z in the viewer > Minor stability fixes and improvements - [NORSAR Software Suite 2020.1 (2020.1.42397 July 3, 2020)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2020-1-2020-1-42397-july-3-2020) > **NORSAR Software Suite 2020.1** is a new main release featuring new functionality; a major upgrade to the inherent 2D functionality is introduced, a *2D spikeogram and travel time analysis tool*. In 3D a new workflow for *Diving wave surface map* is introduced and in addition a 3*D **distance measuring tool* is added. > In addition, several improvements and bug fixes are included.**** > **New functionality ** > 2D modelling tool > Survey projection on a horizon > Block names introduced > Interactive spikeogram/traveltime plot > Interactive retracing from traveltime plot > 3D diving wave surface map workflow > 3D distance measure tool > Bug fixes and improvements > Batch system: Store and load setup of remote nodes > Batch system: Interactive ray tracing setup can be reused in batch workflows > 2D model builder background image is default in background > 2D model builder background image is stored together with model > 2D model builder: Model dimensions default button is added > Fixed holes in 3D model builder is improved > Large SEGY cubes will be cropped to model box when used in 3D Model Builder > Minor stability fixes and improvements - [NORSAR Software Suite 2020.1 (2020.1.42630 October 1, 2020)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2020-1-2020-1-42630-october-1-2020) > **NORSAR Software Suite 2020.1.42630** is a bugfix release featuring several improvements and bug fixes. > NORSAR-2D > Added the classic 2D Property Scanner to the legacy tools menu. (Available on Linux only.) > Fixes for undo/redo functionality in the 2D model builder. > NORSAR-3D > Fixed bug in Event Attribute Extractor to handle different receiver topology for different shots. > Model Builder: > Interface intersections: Handle when the intersection creates many, very small interfaces. > Improvement in the property interpolation between horizons. > Improve text and default when an interface shall be used in a block. > Fixed error in property cube list for a block. > Updated help in symmetry axis. > User specified model width when a cylindrical, 2.5D model is made from a NORSAR-2D model. > Improved max diving ray depth IMAP depth coloring. > Fixed IMAP plotting. > Improved message when spaces in Survey name. > More efficient handling of large survey files in Full-field PSDM Simulator. > Fixed bug for downwards tracing in NIP. > Minor stability fixes and improvements. - [NORSAR Software Suite 2021 (2021.0.43273 February 8, 2021)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2021-2021-0-43273-february-8-2021) > **NORSAR Software Suite 2021** is a major new release featuring new tools and several improvements and bug fixes. > The new cost benefit analysis tool is a systematic approach to estimate a user defined Cost and Benefit function for different illumination maps based on user selected illumination map parameters. > The interactive Shot Direction Tracer is tracing Single Rays in a given model. It is an efficient tool for various purposes like testing the ray behaviour in a given model and visualization of geometrical spreading and shadow zones, to intuitively explain results from workflows like the Interactive Wavefront Tracer, Illumination Maps, Illumination Rays, and others. > **New tools** > **NORSAR-2D** > • A new integrated Interactive 2D Event Handler is introduced > • An interactive tool to generate general 2D ray codes is now supported in the new NORSAR-2D version. > **NORSAR-3D** > • A new Cost Benefit function tool is introduced. > • A new integrated Shot Direction Ray Tracer is now supported in NORSAR-3D > **MDesign** > • New functionality for simulation of DAS helical fiber > **Bug fixes and improvements** > **General** > Important upgrades have been done to the underlying code base and graphic system to secure performance, compatibility, and security. The new NSS version is supported on the following systems: > Windows 10 > CentOS 7 or newer, Red Hat Enterprise Linux 7 or newer > **NORSAR-3D** > General Model Builder: > Clip grid surfaces when loading to fit the model box. > Clip triangular mesh surfaces when loading to fit the model box. > Clip property cubes when loading to fit the model box. > Material properties (Vp,Vs,Rho,…) in cross section plots are now computed by means of splines functions. This shows material properties exactly as they are used in the wavefront tracers. > 2D material property function (single inline or crossline) is expanded into a 3D cube when loaded into the model builder. > The function ‘Cut two interfaces against each other’ shows progress bar and can be cancelled during the process. > Grid Layer Cake Model Builder: > Coincident z-values input grids are allowed. This is a common representation for complex geometries in grid-based interpretation and mapping software. > In addition, minor stability fixes and improvements. - [NORSAR Software Suite 2021.1 (2021.1.43519 March 17, 2021)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2021-1-2021-1-43519-march-17-2021) > **NORSAR Software Suite 2021.1** is a new release featuring several improvements and bug fixes. > The new cost benefit analysis tool is extended with support for Illumination Map combiner results. > The interactive Shot Direction Ray Tracer is improved with new options for user friendliness and for better visualization of rays. > Kirchhoff modelling is extended to support TTI anisotropy. > **New tools ** > NORSAR-2D > Support for random lines is introduced. > A General 2D Section can be defined along a polyline. > A 2.5D model can be made from a 2D model, including for a 2D model along a General 2D Section. > NORSAR-3D > New Cost Benefit combiner option. > New Cost Benefit now supports IMAP combiner results. > Kirchhoff modelling is extended to support anisotropic media, i.e., transversely isotropic media having vertical (VTI), tilted (TTI) or horizontal (HTI) symmetry axis. > **Bug fixes and improvements ** > General > Fixed graphic glitches in windows that were moved in or out of the workspace. > Added startup script to run with VirtualGL on Linux. > NORSAR-3D > General Model Builder: > Possible to use filter with wild card (*) to filter lists. > Windows convention list selection style. > Fixes for automatic resizing of columns in lists. > Possible to delete a horizon and all its interfaces. > New property functions: define a 3D material property function as a constant gradient along a user-specified direction. > Shot Direction Ray Tracer > Support for setting angles by Dip/Azimuth (in addition to Theta/Phi). > Support for plotting markers for ray end points, reflection points, transmission points and ray diving points. > MESA Connector > Fixed problem exporting SMA maps. > In addition, minor stability fixes and improvements. - [NORSAR Software Suite 2021.1 (2021.1.43659 April 13, 2021)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2021-1-2021-1-43659-april-13-2021) > This is a bugfix and maintenance release which addresses the following issues: > **Distributed Job Scheduling** > Fixed remote agents not starting > **Cube Import** > Fixed not showing correctly when opened > **General Model Builder** > Fixed sorting of blocks by depth > **Generate Illumination Maps** > Fixed Illumination Map Setups not listed > **2D Viewer** > Fixed hot cursor > **Tracer** > Fixed cannot retrace shots with index> 100000 > **VirtualGL startup script (Linux)** > Fixed starting wrong version - [NORSAR Software Suite 2021.2 (2021.2.44025 August 12, 2021)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2021-2-2021-2-44025-august-12-2021) > **NORSAR Software Suite 2021.2** is a major new release featuring new tools and several improvements and bug fixes. > The new Workflow Queue System allows the user to set up and run a queue of workflows e.g., several batch wavefront tracer setups, or a number of different illumination maps. It is an efficient tool for generating different modelling results for example by running the queue automatically over night. > The Illumination Cubes workflow is a new NORSAR-3D workflow that can be used e. g. as a survey planning device in connection with surveys intended to be used for inversion projects (tomography, FWI etc.). The workflow performs tracing through the model and maps the ray paths to a regular 3D cell grid in space. Several ray attributes can be mapped, in order to get a picture of to what extent the parts of the model are penetrated (illuminated) by the rays, and what ray directions are represented. > A 2D model can now be extracted from a 3D model along a 2D New General Section in the NSS project (in addition to a 2D model along an Inline/Crossline Section). The general (random) section is along a selected NSS polyline. The NSS 2D modelling allows for a user-friendly and efficient ray-path and event analysis, even in the most complex models. > A 3D model from a set of NORSAR-2D models is introduced. The 3D model is approximately interpolating between the 2D models. The selected models may be inlines or crosslines or a combination of inline and crossline or general sections. All selected models must have the same number of surfaces. > New tools > **NORSAR-2D** > A 2D model can be extracted from a 3D model along a general 2D section, in addition to an Inline/Crossline section > **NORSAR-3D** > A new integrated Workflow Queue System is now supported in NORSAR-3D. > A new Illumination Cubes workflow is introduced. > A 2D Smif model can be made from a 3D model along a general 2D section. > A 3D model from a set of NORSAR-2D models is introduced. > **General** > Dock widget workspace implemented. > Bug fixes and improvements > **NORSAR-2D ** > Improved import of Smif files into the 2D model builder (inline/crossline 2D sections). > Get N2D horizon names in the Smif file. > **NORSAR-3D ** > Export of 2D model on SEGY via 2.5D model. > Fixed crash when clip polygon is deleted in General Model Builder. > Fixed sorting of grids correctly in Grid Layer Cake model. > Fixed Ray Code selection in Survey Domain IMAP that was wrong after using Max diving ray depth IMAP. > Fixed plot of the Static shot dependent work box for non-projected shots. > **General** > Reorganized and updated functionalities for Workflows and Illumination Maps. > In addition, minor stability fixes and improvements. - [NORSAR Software Suite 2021.3 (2021.3.44228 (November 26, 2021)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2021-3-2021-3-44228-november-26-2021) > **NORSAR Software Suite 2021.3** is a new release featuring several improvements and bug fixes. > **NORSAR-2D** > Model Builder > Fixed missing sample at the end of plotted horizons. > Fixed wrong units in the Background Image Mapping window for a time model. > Fixed a missing update when a one-sample horizon was deleted. > Improved error message on blocking. > **NORSAR-3D** > Data import/export > Fixed that grid import did not handle files larger than 2 GB. > Improved help on the symmetry axis import (SEG-Y cubes with azimuth and dip). > Export of polylines is introduced. > SEG-Y property cube export: > Header info can now not be edited, as it is only for info. > Manual setting of the z-sampling field in the SEG-Y header is only requested when needed. > The displayed size and sampling are always matching with the units. > Improved help. > SEG-Y property cube import: > The displayed size and sampling are always matching with the units. > Model Builder > Fixed smoothing issue of large property cubes on Linux. > Grid Layer Cake Model Builder: > Improved handling of ‘zero-thickness’ layers (partially coincident interfaces). None or much smaller glitches between the interfaces where they intersect. > General Model Builder: > New interface edit function: Merge, Smooth, and Resample. > From 2D model to 2.5D model and from Many 2D models to 3D models: > Max allowed number of samples in the 2D general line definition is increased to 10000. > Workflows > Fixed crash in the Seismogram Generator workflow when trying to plot shot dependent working box. > Introduced a new parameter: ‘Wavefront Analysis Level’ in the WF tracing advanced parameters. > Introduced a message in the Batch Monitor window if some parts of the initial disc have been stopped during the wavefront propagation. > Improved distribution of shots among the jobs in the Batch Wavefront Tracer. > Fixed ‘Restore Defaults’ option in the Advanced Tracing Parameters window. > Kirchhoff modelling > Filter attributes in Advanced Greens Function Parameters setup: Preserve Max Offset values along local X/Y-axis. > Improved reuse of existing Greens functions. > **SeisRoX** > 3D Viewer > Fixed crash when displaying reflectivity in a reservoir model without elastic properties. > **General** > Minor stability fixes and improvements. - [NORSAR Software Suite 2022 (2022.0.44371 (March 8, 2022)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2022-2022-0-44371-march-8-2022) > **NORSAR Software Suite 2022** is a new release featuring several improvements and bug fixes. > **General** > Fixed crash when plotting petromarkers and using the hot cursor in the 3D viewer > **NORSAR-3D** > Allow for importing multiple polylines in one go > Added checkbox for plotting all polylines > Fixed crash in Kirchhoff pre-stack workflow setup > Fixed seismogram generator workflow sometimes stopping > Fixed that blocks and properties were not plotted in some cases in the general model builder > Fixed crash when running the NIP tracer workflow > Fixed that models were corrupted if property names were too long > Fixed crash when resampling a 2D property grid > Added warning if a project is located directly on the root of a drive on Windows (e.g D:\) , which can cause various problems > **SeisRoX** > Fixed license error in the SeisRoX local target workflow > Fixed that it was not possible to export PSFs from the SeisRoX local target workflow > In addition, minor stability fixes and improvements. - [NORSAR Software Suite 2022.1 (2022.1.44501 June 28, 2022)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2022-1-2022-1-44501-june-28-2022) > **NORSAR Software Suite 2022.1** is a new release featuring new functionality, improvements and bug fixes. > **NORSAR-2D ** > Disallow using illegal characters in 2D section names. > **NORSAR-3D ** > New Import functionalities: > Import Tigress format property cubes. > Import Esri shape format polygons as polylines. > Wells: New functionality to make a property cube from the velocity or density in a well. > 1D Model Editor: Fixed that Qp and Qs columns were sometimes not editable. > General 3D Model Builder: > New function “Fit property between horizon”. > New function to merge property cubes. > Fixed that “Cut two interfaces against each other” could only be run once. > Fixed that “Store property” on a new name corrupted the list of material properties. > Improved user control of the function “Extrapolate/Interpolate in property”. > Improved cross section plots of blocks. > Kirchhoff Prestack Modelling Workflow: > New functionality: Modelling of registration along a DAS cable. > Fixed that workflows were not correctly copied. > General: Fixed crash when opening a project containing a corrupt NORSAR-3D model. > **SeisRoX ** > Eclipse Import: Fixed crash when trying to import a partial model. > Eclipse Import: Fixed user interface issues. > Local-target PSDM Workflow: Fixed potential crash when plotting PSF and/or filter and switching between cases. > Full-field PSDM Workflow: Fixed that PSF, filter and reflectivity were not stored. > In addition, minor stability fixes and improvements. - [NORSAR Software Suite 2023 (2023.0.44795 December 22, 2022)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2023-2023-0-44795-december-22-2022) > **NORSAR Software Suite 2023** is a new major release featuring new functionalities, improvements, and bug fixes. Highlights of the release are a new 3D Point Spread Function workflow, MDesign export functions, a 2D lateral property gradients function and a new dark user interface style. See the list below for details. > **Common functions ** > Reset of settings and selection of Preferences available from the Startup dialog. > New style option under Preferences: Dark. > Improved user’s control of the 3D Viewers. > Extensive validation of user-defined input: Maximum name length and valid characters. > File import no longer requires a suffix, that is, a “.” in the filename. > With a single click, switch on/off many elements of common type in the 3D Viewer. > **NORSAR-2D** > Can make lateral property (Vp, Vs, density, etc.) gradients. > To make 2D model from 1D Model is improved and is more stable. > Improved coordinate info from the Hot Cursor. > **NORSAR-3D ** > Supercritical reflections can be filtered or plotted with a separate color in the Interactive Illumination Rays plot and in the Shot-Direction Ray-Tracer. > Improved Max Diving Depth filter in the Illumination Cubes workflow. > Corrected the generation of Time-to-Depth mapping function from a time domain velocity cube. > Polyline import for data in US-feet. > Connection to Mesa 17. > **SeisRoX ** > New workflow to compute Point Spread Functions (PSFs) only. > Improved progress report when workflows are running. > Improved SEG-Y export of results. > **MDesign ** > Extensive new export functions and formats. > In addition, several stability fixes and improvements. - [NORSAR Software Suite 2023.1 (2023.1.45040 November 3, 2023)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2023-1-2023-1-45040-november-3-2023) > **NORSAR Software Suite 2023.1 **is a new release featuring new functionality, improvements and bug fixes. > **Common functions ** > It is checked that a project is not made at or moved to top level (like C:/). > Hot cursor information is improved for 2D sections in 3D Viewer. > **NORSAR-3D ** > Import: > Axis of symmetry import options include files with Dip and Azimuth of plane orthogonal to the axis of symmetry. > Grid import preview: Improved default folder for input data. > Build models: > 1D -> 3D Model conversion and Single reflector model builder: Amount of smoothing is now independent of unit settings. > Single block model builder: Attenuation Qp can exceed 1000. > Make plane grid: Improved default values. > General Model Builder: Unintentional changes of model limits are prevented. > General Model Builder: Improved user input field for Cross section plots. > The Time-Depth mapping function is correct also when it is made from a time domain velocity field. > Survey: When editing a survey of Fixed type, the correct panels are shown. > Common shot Batch Wavefront ray-tracer workflow: > Improved status info for surveys with many undefined shots. > Improved message if try to re-trace a shot with no results. > Shots are distributed more evenly among jobs. > Kirchhoff modelling and migration workflows: Default sampling parameters are improved. > Illumination cube workflow: Areal filters can be defined. > Improved unit handling in many functions. > **SeisRoX ** > In Eclipse Import, more parameters are checked to determine which cells are active. > CO2 in rocks when using the Span-Wagner option now also works on Linux. > **MDesign ** > Attenuation Qp is taken from the model, including that it may vary in the subsurface. > The function to save a point set as sensors is now robust, not causing software crash. > VSP surveys can be made also when only NSS MDesign is run. > Help updated with more details. > A new tutorial is available. > In addition, several stability fixes and improvements. - [NORSAR Software Suite 2023.2 (2023.2.45094 December 18, 2023)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2023-2-2023-2-45094-december-18-2023) > **NORSAR Software Suite 2023.2 **is a new release featuring new functionality, improvements and bug fixes. > **NORSAR-3D ** > Make elements: > Project a polyline onto a model horizon. > Build models: > Single Block model builder: Use attenuation and anisotropy cubes. > Single Reflector model builder: Use attenuation cubes. > Grid Layer Cake model builder: Allow larger attenuation cubes. > More robust construction of a 3D model from 2D lines. > Survey: > Coil survey generator: Correct coil radius also when input unit is not km. > Kirchhoff migration workflow: > Can now also use DAS data from Kirchhoff Modelling or Seismograms made from Wavefront modelling events. > Normal Incidence Point (Zero-offset) workflow: > Improved GUI and Help for setting of shot/receiver depths. > **NORSAR-2D** > Make time domain model: > Size definition correct also in projects where depth unit is not km. > **MDesign** > Selection of sensors: > More flexible ways to enable and disable sensors. > Run workflows: > Warning if the data set is large. > Help: > More advice on computational performance versus number of sensors and target cube nodes. > Improved explanation on how to plot the results from Location Uncertainty workflows. > In addition, several stability fixes and improvements. - [NORSAR Software Suite 2024 (2024.0.0 July 2, 2024)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2024-2024-0-0-july-2-2024) > **NORSAR Software Suite 2024 **is a new release featuring new functionality, improvements and bug fixes. > **General functions** > Colour scale: > Scientific colour scales are available in 3D viewer > Welll log import: > Well path can be specified by inclination and azimuth down along the well > Workflow queue manager: > More workflow types can be queued, including Kirchhoff modelling and migration workflows. > Modelling project editor: > Added a tab for setting preferred display unit for selected attributes > Seismogram generation: > Offset is now included in the SEG-Y file trace header. > **NORSAR-3D** > Make elements: > Property import as SEG-Y: Improved explanation of how to change number of traces, etc. > Build models: > In Single reflector model builder, corrected wrong display when P/S-ratio was specified. > In General model builder, corrected holes in properties made by interpolation between horizons. > In General model builder, corrected the generation of properties by analytic functions when spatial units are not km. > Fixed problem with a crash in general model builder on interface operations > Survey: > New survey type: Orthogonal survey. > Kirchhoff migration workflow: > Can now reuse the Greens’ function from the corresponding Kirchhoff modelling workflow. > Illumination Rays (IRAY): > The results can be limited by areal filters in the shot and receiver domains. > Fixed bug that exclusion filters were ignored > Fixed bug that Shot-receiver azimuth filters, incident reflection angle filters, and departing reflection angle filters were ignored > The Help is improved. > In anisotropic models, now rays for all incident angles are computed; used to be just a half-circle. > Fix crash in survey generation for flower plot generation > For survey dependent workflows, added warning about long compute time for large surveys > New Fast track utilities workflow: > Workflow to estimate Minimum Bin Size / Maximum frequency to avoid aliasing. > **NORSAR-2D** > General ray code: > More detailed explanation in the Help. > **SeisRoX** > Full-field workflow: > Fixed error in Greens Function Generation for SeisRoX Full-field workflows, causing illumination vectors to be wrong. This bug was introduced in version 2023.1 > **MDesign** > Sensor file import > Now also handles files with no noise floor information. > Detectability workflow: > Corner frequency is no longer needed as input. > Corrected algorithm for magnitude estimation. > Location uncertainty workflow: > Corrected algorithm for magnitude estimation. > DAS Illumination workflow: > From the input survey, only the receivers are used. > Fixed error in backazimuth computations > Amplitude statistics (min,max,average) are provided. > Added option to show the absolute number of receivers in addition to percentage of all receivers > In addition, several stability fixes and improvements. - [NORSAR Software Suite 2024 (2024.0.1 August 30, 2024)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2024-2024-0-1-august-30-2024) > This is a bugfix and maintenance release which addresses the following issues: > SeisRoX > Fixed crash in illumination function generation for the Full-field workflow, in cases where illumination vectors have maximum allowed incident angle > Fixes for Green’s function generation > Fixed invalid timers in local-target workflows > MDesign > Fixed unit error in location uncertainty workflow > When location error uncertainty cannot be determined, set value to undefined > Location uncertainty workflow speed optimizations > 3D Viewer > Fixed interactive illumination rays in isotropic media, rays were plotted twice > In addition, minor fixes and improvements. - [NORSAR Software Suite 2024 (2024.0.2 December 19, 2024)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2024-2024-0-2-december-19-2024) > This bugfix release resolves an issue where creating a new project would sometimes fail. - [NORSAR Software Suite 2025 (2025.0.0 May 20, 2025)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2025-2025-0-0-may-20-2025) > **NORSAR Software Suite (NSS) 2025** is a bugfix and system upgrade release, focused on bringing the platform up to date with modern software libraries and improving overall stability and performance. While not a feature-heavy release, several important improvements and fixes have been made across key workflows and components. > **Please note: This is the last version supporting RHEL 7/CentOS 7 which reached EOL June 30, 2024.** System and Library Upgrades > A number of third-party libraries have been updated to their latest supported versions: > Qt upgraded from 5.14 to 6.8 > Qwt upgraded from 6.2 to 6.3 > VTK upgraded from 7.1.1 to 9.3 > Python upgraded from 2.7 to 3.11 > HDF5 upgraded from 1.8 to 1.14 > Zlib upgraded from 1.3 to 1.3.1 > Boost upgraded from 1.73 to 1.87 > **Platform Changes** > **Windows**: Development environment updated from Visual Studio 2017 to Visual Studio 2022 > **Linux**: Primary platform is now Rocky Linux 9 (Support for CentOS 7 is maintained via a separate binary distribution until the next release.) > Major Functional Updates > **Seismogram Generator ** > DAS amplitudes are now correctly interpreted as strain amplitudes. > **SeisRoX Enhancements ** > Anisotropy is now supported. > Attenuation modeling fixed—previous versions applied excessive attenuation. > **Survey-Dependent Tools ** > IRAY and Flower Plot: Improved angle accuracy with new retracing logic; previously reflection angles were too coarsely sampled. > Bug Fixes and Improvements > **Units Handling ** > Inconsistencies addressed; units now explicitly set in the Units tab in project definition. (Note: Some modules still use the km-system.) > **Visualization and UI** > Improvements in color map settings > Fixed color mapping range issues in DIP and DEPTH illumination maps > General stability improvements in model builders > Removed outdated and little-used functionality > **Illumination Workflows ** > Areal filter bugs fixed in both Illumination Map and Cube workflows > Optimizations in MDesign DAS Illumination workflow > **Toolkit and API ** > NORSAR Data Toolkit: > Improved handling of illegal project names > Fixed incorrect Y-axis in C# project grid area query > **SeisRoX Specific Fixes ** > Correct assignment of rest properties in model builder > Interactive illumination rays now work better with anisotropy > Kirchhoff workflow execution is now more stable > **Data Import and Interop ** > Fixed rotation bug when importing symmetry axis from SEGY files as azimuthal plane > **Miscellaneous ** > Workflow queue handling improved > Security updates > Fixed vertical well handling in VSP Survey Generator > Summary > NORSAR Software Suite 2025 sets the stage for future feature development by delivering critical upgrades and stability improvements. We recommend all users upgrade to this version to benefit from enhanced performance, compatibility, and robustness. - [NORSAR Software Suite 2025.1 (2025.1.0 October 13, 2025)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2025-1-2025-1-0-october-13-2025) > **NORSAR Software Suite 2025.1 is a maintenance and bugfix release ** > **Major changes** > MDesign Detectability and Location uncertainty: Amplitude computations improved to support complex models > **The following issues have been fixed in this release** > Added help for the Units tab when creating a project. > Point based survey domain illumination maps were not plotted > Imported microseismic data points with the noise floor specified were not plotted. > Detectability workflow failed for sensor sets with non-unique names. > Added help to SeisRoX PSF workflow. > Crash in SEG-Y export of SeisRoX results > Floating point inaccuracy for z-axis in SEGY output > Unit errors in GUI components: > Colour legend for property cubes and NORSAR-3D models > Single block and single reflector model builders > Survey generator > Flower plot workflow setup > N2D survey definition > NIP survey area widget > Default spacing for NIP surveys too small causing resource problems > Time to depth mapping error if time grid is outside of the cube > Deadlock in General Model Builder surface plotting > Warn if too many PSFs are stored in MDesign Focusing workflows > Scaling of anisotropy parameters was incorrect when exported as SEGY. > Missing “night” GUI style - [NORSAR Software Suite 2026 (2026.0.0 April 28, 2026)](https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2026-2026-0-0-april-28-2026) > The **NORSAR Software Suite 2026** release introduces important new capabilities across NORSAR-3D, MDesign, and general functionality, with a particular focus on improved modelling flexibility, enhanced survey support, and more robust workflows. > **MDesign** > The main updates in **MDesign **include: > **Improved geophone directivity handling** > Detectability and location uncertainty workflows now account for the directivity of single-component geophones, enabling more realistic and reliable analysis. > **DAS support in detectability workflows** > Distributed Acoustic Sensing, DAS, is now supported in the detectability workflow, extending the range of acquisition technologies that can be evaluated. > **NORSAR-3D** > The major update in **NORSAR-3D** is an extended **General Model Builder**, now available in two versions: > **Basic version** > This corresponds to the General Model Builder available in previous releases and provides the familiar workflow for standard model construction. > **Advanced version** > The new Advanced version organizes Interface, Horizon, and Block relationships in a hierarchical structure. This enables more flexible model building, better storage and management of model elements, and supports the construction of more complex models than can be handled in the Basic version. > This release also includes a wide range of improvements and bug fixes in **NORSAR Software Suite**, including: > Improved handling of surveys created from SPS files in the interactive wavefront tracer. > Fixed conversion from 2D to 2.5D models when using non-constant material properties. > The *Smooth and Resample* function in the General Model Builder now works for single interfaces, in addition to merged interfaces. > The survey-dependent illumination ray workflow now supports topographic surfaces. > The CMP bin size tool has been fixed for topographic surfaces. > Bugs related to coordinate transformation and unit conversion have been resolved. > Several color map issues have been fixed. > **NORSAR introduces PasMon**, a new cutting edge software solution for advanced real-time passive seismic monitoring. > PasMon represents a significant step forward, harnessing NORSAR’s deep expertise in seismology and integrating advanced modern analysis methods. > PasMon provides critical insight into subsurface dynamics and supports informed decision-making in demanding operational environments. > And in addition, several stability fixes and improvements. #### [NORSAR Software Suite](https://www.norsarinnovation.com/software/release-notes/norsar-software-suite_2/) #### [MDesign](https://www.norsarinnovation.com/mdesign/category1261.html) - [MDesign 2017 (2017.0.37280, February 22, 2017)](https://www.norsarinnovation.com/mdesign/mdesign-2017-2017-0-37280-february-22-2017-article2914-1261.html) > This is the first maintenance release for MDesign. - [MDesign 2017.1 (2017.1.38070, April 21, 2017)](https://www.norsarinnovation.com/mdesign/mdesign-2017-1-2017-1-38070-april-21-2017-article2915-1261.html) > This is a maintance release for MDesign. - [MDesign 2017.2 (2017.2.38506, July 4, 2017)](https://www.norsarinnovation.com/mdesign/mdesign-2017-2-2017-2-38506-july-4-2017-article2916-1261.html) > This release contains the following updates and fixes: > Common NORSAR Software Suite functionality > **SEGY Property import, SEGY Seismic import** > Added option to specify a valid data range for property values also for (velocities and density) **(New)** > Importing large cubes (typically 2GB+) sometimes led to write failure when storing the NSS cube, especially on Windows. Now more robust writing. > On importing non-standard property types, the property type name was blanked out. Fixed now > **VSP Survey generator** > Fixed limitation in line length for shot grid surveys > **Workflows – general** > Fixes on archiving > Recovering workflows using the tracer would eventually lead to only one tracer job being run > **Model Builder** > Remove value-range in property functions: Now the values in the range are replaced by no-values, not a default, valid constant value. > Property functions and interfaces can now be stored and removed . > Clipping of interfaces by polygons is improved. > Block relations for multi-z-valued interfaces are shown and can be set. “+” and “-“ replaces “Above” and “Below” for this type of interfaces. > To support the “+” and “-“ specifications, the hot cursor information includes plot of the positive interface unit normal. > Fixed to make attenuation and Thomsen property functions by interpolation. > Fixed to load model with non-VTI anisotropy axis of symmetry. > Removed some unnecessary warnings when a model is checked for validity. > Minor fixes of user interface details. > MDesign functionality > Sensors can be set enabled/disabled directly in the workflow setup > Unit can be changed for Location Uncertainty results > Sensor files can be used in the NORSAR-3D Traveltime Cube Generator workflow - [MDesign 2017.1 (2017.1.38511, July 5, 2017)](https://www.norsarinnovation.com/mdesign/mdesign-2017-1-2017-1-38511-july-5-2017-article2917-1261.html) > This is a bugfix release which addresses an issue where in a certain situation the project could become corrupted. - [MDesign 2017.2 (2017.2.38627, August 10, 2017)](https://www.norsarinnovation.com/mdesign/mdesign-2017-2-2017-2-38627-august-10-2017-article2918-1261.html) > This is a maintenance release. - [MDesign 2017.2 (2017.2.38812, September 14, 2017)](https://www.norsarinnovation.com/mdesign/mdesign-2017-2-2017-2-38812-september-14-2017-article2919-1261.html) > This is a bugfix release. ##### [NORSAR-3D](https://www.norsarinnovation.com/norsar-3d/category1263.html) - [NORSAR-3D 5.5 (May 11, 2012)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-5-may-11-2012-article2921-1263.html) > Version 5.5 introduces new tools for survey planning and illumination studies based on Illumination Ray (IRAY) concept. In addition a new fully integrated 3D viewer with the ability to plot all data objects in a NORSAR project is introduced. The viewer is the first step to bring NORSAR-3D into the new NORSAR Seismic Modelling platform. This framework is already used for SeisRoX. Included in the release are also major improvements in the Model Builder: The ability to make a 3D model from a set of 2D lines, and a more robust handling of interface intersection. Other modules are also improved, see below. > **FlexLM license** > Upgraded to FlexNet 11.10 > **Project Manager** > Warning given if values are not reasonable > **File Manager** > Handling of new data objects: Point Set, Polyline, IRAY Green’s Functions > **Wavelet** > Import wavelet on ASCII file format > **Cube Export** > Fixed bug causing wrong export unit > **Survey Import** > Improved handling of large SPS files > Optimized memory allocation > Fixed bug causing undefined values in survey files > **Survey definition** > A new survey generator is introduced with functionality to define more general surveys including coil surveys > Survey CMP fold maps and azimuth/offset coverage maps are introduced in the Viewer > Survey azimuth/offset coverage polar plots are introduced in the Viewer > **Model Builder** > Load project grids as properties > Store interfaces/horizons as project grids > Improved memory handling in iso-surface construction > Improved interface curvature calculations when a model is stored as a ‘model ready for ray-tracing’ > Tools to build 3D models from 2D lines > Handle arbitrary 2D lines (models from NORSAR-2D) > Improved interface intersections > Load/Store/Make polylines > Make interfaces from polylines > Make constant gradient material properties > Hot cursor option > Rotate/Translate/Zoom are available during interactive editing (with ‘(M)’-functions) > Display of UTM axis introduced > **Viewer - NEW** > Complete new module with advanced functionality to display all data objects in a NORSAR project, including IMAPs, FPLOTs and survey fold maps > View thumbnail of Flower Plots located in 3D > Backward compatible with previous NORSAR-3D versions > **Illumination Ray - NEW (available from Viewer)** > Option for interactive click & shoot of direct rays > Option for interactive click & shoot of illumination rays (rays obeying Snell’s law) > Introducing three IRAY applications (workflows) for target point studies: > Target Based: Study the incident ray angles that can be realized at a target > Shot Based: Study where to locate receivers given shot positions > Survey Based: Study the ray coverage at a target point for a given survey > **Common Shot Wavefront Tracer** > Introduced rotated shot centered working box option giving reduced processing time > Improved re-tracing > Improved handling of rough/complex property fields > Improved handling of shots located in undefined property fields > Some user interface improvements > **Illumination Map** > New option for geometrical spreading correction (true amplitude) > Advanced IMAP display in the new Viewer > **Illumination Map Batch** > Handle unlimited number of licenses > New option for local parallel mode > Improved GUI > In addition stability fixes, minor improvements and miscellaneous bug fixes. - [NORSAR-3D 5.5.1 (June 25, 2012)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-5-1-june-25-2012-article2922-1263.html) > Version 5.5.1 contains important stability fixes, minor improvements and miscellaneous bug fixes. > **Model Builder** > Improved interface intersection handling > **Illumination Map** > Graphic card compatibility issue: Enable use of N3D imap viewer version 5.4.6 with all version 5.5 functionality available, for the rare cases when the illumination map module crashes due to GLX problems due to the graphic card driver > **Viewer** > Fixed bug where the viewer hangs when using modelling projects with a very large project area > Fixed license handling error - [NORSAR-3D 5.5.2 (October 29, 2012)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-5-2-october-29-2012-article2923-1263.html) > Version 5.5.2 contains new functionality in the Model Builder, important stability fixes, minor improvements and miscellaneous bug fixes. > **Survey Import** > New option ‘Use All Point Indices’. The Point Index will be used together with the ‘Line Name’ and ‘Point Number’ to identify a shot/receiver pair. > **Model Builder** > Compute polygons which delineate coincident areas on interfaces. To be used in combination with the ‘Cut by polylines’-function to remove duplicated parts of interfaces (‘zero-thickness’ areas). > Decimation of interfaces. Reduces adaptively the number of triangles used to represent interfaces, with no significant change in shape. > Fill in all small holes on interfaces. > In Cross sections, new options: > Set line width for the interfaces. > Optionally plot black ribbons along the interfaces where no block/horizon is assigned. > Fixed reloading model issue > The ’Adaptive’ option in the iso-surface computation is removed. In some cases the computed iso-surface was strange and wrong. > Corrected the Simplify polyline function. A bug prevented use of simplified polylines in other functions, even though the polylines looked ok. > **Illumination Map** > Fixed crash with error message ‘Unknown color mapping function’ > **Illumination Map Batch** > More robust parallel processing handling - [NORSAR-3D 5.5.3 (January 4, 2013)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-5-3-january-4-2013-article2924-1263.html) > Version 5.5.3 contains important bug and stability fixes. > **Cube Export** > Fixed rare font problem causing invisible text in buttons and labels in user interface > **Model Builder** > Fixed rare group storing problem causing that the group could not be reloaded > **Illumination Ray** > Fixed problem with Snell’s law in isotropic layers in an anisotropic model, causing problems with target workflows as well as interactive illumination rays. > **Illumination Map Batch** > Fixed problem that occasionally the batch server could create a large log file. > **Viewer** > Fixed rare survey display problem causing replotting of unselected surveys > In addition minor bug fixes and improvements. - [NORSAR-3D 5.5.4 (June 3, 2013)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-5-4-june-3-2013-article2925-1263.html) > Version 5.5.4 contains important bug and stability fixes. > **Cube Import** > Fixed analyze bug for cubes> 2GB > **Model Builder** > Fixed surface intersection problems > **Illumination Map** > Use 5.5 viewer by default to fix potential display problems > **Illumination Map Batch** > Fixed problem that could cause the batch to hang on the last merge job. The bug could appear when an IMG is created as a template from an IMG containing combined multimaps > Improved ssh handling > Improved stability > In addition minor bug fixes and improvements. - [NORSAR-3D 5.7.1 (February 17, 2015)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-7-1-february-17-2015-article2926-1263.html) > Version 5.7.1 is a bugfix release. > **Kirchhoff Prestack Modelling** > Fixed severe bug in wavelet resampling causing bad results when sampling is different between wavelet and trace > **Kirchhoff and Illumination Map - Batch** > Fixed bug when batch server is stopping during time demanding processes > **Viewer - Reflectivity viewer** > Fixed crash on 32-bit systems > **Survey Generator** > Fixed that some surveys could not be edited > **Startup scripts** > Fixed problem that user defined environment variables are not exported correctly on some systems > In addition minor bug fixes and improvements. - [NORSAR-3D 5.6 (February 14, 2014)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-6-february-14-2014-article2927-1263.html) > Version 5.6 introduces well import and a completely new VSP survey generator. It also includes support for Green’s Function generation for SeisRoX 3.0 Full-field. In addition it includes important bug and stability fixes. > **Well Import (NEW)** > Import wells on LAS or on a general ASCII format > Option to derive VP, TVD > Option to upscale a well log > **Survey Import (NEW)** > New improved GUI > New ASCII import (XYZ Shot-Receiver pair and XYZ CMP) > New ASCII XYZ shot centered import > **VSP Survey Generator (NEW)** > Walk above > **Green’s Function Generator** > Updated GUI for Illumination Ray Green’s Function generator > New SeisRoX Full-field Green’s Function generator > In addition minor bug fixes and improvements. - [NORSAR-3D 5.6.1 (June 25, 2014)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-6-1-june-25-2014-article2928-1263.html) > Version 5.6.1 is a maintenance release with improvements in functionality and some minor bugfixes. > **Illumination Map** > Workaround to prevent crash of imap viewer on some VNC based system, by optionally embedding a 5.4.5 viewer into Illumination Map > Illuminate both sides of illumination maps to avoid blacked out surfaces > Display and export DEPTH and DIP maps. Not available for 5.4.5 illumination map viewer > Possible to turn off standard SMA illumination maps and still generate other SMA maps > Post-critical angle filter in the Illumination map setup > More informative mapping domain names in Illumination Map setup > **Illumination Map Utility** > DEPTH and DIP maps can be used in Function Operator > **lllumination Map - Batch** > Handle when file system and batch server machine have unsynchronized clocks > Show log window when starting batch process > **3D Viewer** > Enable interactive clipping of SeisRoX horizon models > Fix crash when plotting horizon models with large densely sampled horizons > Fix crash when plotting seismic data with name containing "." > **Cube Import** > More robust analysis of densely sampled rotated SEGY cubes > **Common shot Wavefront Tracer** > Added Total reflection/Transmission loss as standard attribute to store for Default, Illumination Map and Illumination Map – SMA selections > Improved handling of filtering of post-critical rays for converted waves > **Model Builder** > New button *Come to me * in cross section view to click on a position to position the cross section at that position > Improved model validation > **Event Extractor ** > Add filter options on survey parameters > **IRAY Export** > Enable to export parameters to ASCII file > In addition minor bug fixes and improvements. - [NORSAR-3D 5.6.2 (September 29, 2014)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-6-2-september-29-2014-article2929-1263.html) > Version 5.6.2 is a bugfix release with some minor additions in functionality. > **Model Builder** > Extended check when a model is stored. Warning is shown if: > There is no impedance contrast across an interface > A property grid/cube is undefined along an interface that is used in the definition of the corresponding block > The velocity gradient is very large close to an interface > Project an interface down on interfaces and/or polygons > Option for vertical projection > Store interfaces: > By default curvatures are no longer calculated (like in TriMesh import) > **TriMesh Import** > Can now have more than one interface on an input ".ts" file. The interfaces must be separated by the "TFACE" statement > Much faster import of large interfaces, because, as default, curvatures are no longer calculated. (Curvatures are only needed if the interfaces are to be used in "Model Assembler") > **Survey Generator** > Added new VSP survey types > Walk-around > Walk-away > Shot grid > **Event Extractor** > Add filter options on event parameters > In addition minor bug fixes and improvements. - [NORSAR-3D 5.7 (January 30, 2015)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-7-january-30-2015-article2930-1263.html) > Version 5.7 introduces full 64-bit support, meaning that applications no longer have an upper limit of 2 GB data use. > It also includes a new Kirchhoff Prestack Modelling workflow and a reflectivity viewer where reflectivity can be plotted as a function of incident angle, and a 2D SEGY previewer for simple inspection of external SEGY files. > In addition it includes important bug and stability fixes. > **General** > 64 bit support > **Wavefront Batch Tracer** > Initial memory check on remote hosts to avoid filling up physical memory by tracer processes > **Kirchhoff Prestack Modelling - NEW** > New workflow to generate synthetic prestack Seismic based on the Kirchhoff process. > **Viewer** > Display NORSAR-3D prestack seismic results > Display Kirchhoff prestack seismic results > Memory monitor tool > Added option to load and store camera settings > Added reflectivity viewer > **2D Segy previewer - NEW** > Simple display of external Segy files > **Model Builder** > Mesh refinement when storing a model as a SeisRoX/Kirchhoff > Improved stability > **Kirchhoff and Illumination Map - Batch** > Memory monitor for remote machines > Support Kirchhoff modelling jobs as well as illumination map jobs > In addition minor bug fixes and improvements. - [NORSAR-3D 5.7.2 (June 23, 2015)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-7-2-june-23-2015-article2931-1263.html) > Version 5.7.2 is a maintenance release with improvements in functionality and stability mainly in the Model Builder, VSP Survey Generator, Wavefront Tracer and Cube Import. > In addition it includes a new SEGY Property Import module and important bug and stability fixes. > **SEGY Property Import - NEW** > New import module for SEGY properties and 3D seismic cubes. > **VSP Survey Generator** > Fixed a bug for VSP Walk Around spiral surveys, where the spiral didn't have the correct distance between shots and number of shots. > **Model Builder** > Corrected bug that resulted in very uneven smoothing of property cubes if the cube sampling steps in the three directions were very different. Most commonly, the cubes where smoothed as expected in the x- and y-directions, while there was almost no smoothing in the z-direction. Now smoothing is even in the three directions. > Much faster 'Loading of property grid as interface', especially for large property grids. > **Common shot and NIP Wavefront Tracers** > Option to store up to a user specified number of events per ray code, independent of the number of events for the other ray codes. - [NORSAR-3D 5.4.4 (March 25, 2011)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-4-4-march-25-2011-article2932-1263.html) > Version 5.4.4 contains important stability improvements for the Illumination Map Batch. > **Model Builder** > Improved handling of very small interfaces when a model is stored. > Using less memory in some cases when a model is loaded. > **Wavefront Tracer** > More robust wavefront propagation through models with very large velocity contrasts. > More efficient wavefront propagation through very complex models. > Including attenuation attributes when selecting IMAP-SMA event attribute settings. > **Illumination Map** > Improved filter options. > Fixed handling if S-wave, when not using SMA. > Fixed minor bugs. > **Illumination Map Batch** > Added improved auto-stop of server, if idle. > Fixed no (or very slow) progress update in the generation of jobs, causing the system to suspect connection problems and crashes. This could happen when the event set was strongly filtered. > Fixed bug causing merging of sub results never to start. > Fixed bug causing the master to wrongly stopping slave jobs. This could happen if a job crashed. > Fixed minor bugs. > In addition other stability fixes, minor improvements and miscellaneous bug fixes. - [NORSAR-3D 5.4.5 (August 26, 2011)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-4-5-august-26-2011-article2933-1263.html) > Version 5.4.5 contains important stability improvements for the Illumination Map Batch and FlowerPlot. In addition other stability fixes, minor improvements and miscellaneous bug fixes. > **Trimesh Import** > Vertices (VRTX) with index 0 will be ignored during import. Warning will be given. > **Wavefront Tracer** > Increased maximum legal ray-tracing velocity from 20 km/s to 40 km/s. > **Illumination Map** > IMAP setup > Fixed problems setting registration direction type. > Fixed error when selecting template IMG with no target horizons. > Remember last used mapping domain when opening the setup dialog the second time. > Warning if IMG setup will lead to high memory consumption in generation. > IMAP generation > Prevent crash of Illumination Map module if the generation process crashes. > Fixed problems on S-velocity projection. Normalization of slowness vector. > Improved stability and minor improvements. > **FlowerPlot** > Fixed serious indexing bug in CRP subselection. > Fixed bug causing discrete behavior of tolerance angles for event pair matching. - [NORSAR-3D 5.4.3 (December 15, 2010)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-4-3-december-15-2010-article2934-1263.html) > Version 5.4.3 is a bugfix release. > **Illumination Map** > Improved IMAP setup: Removed 'deadlock' between SMA option and trimesh option. > Fixed license bug for Nucleus and demo versions when generating IMAPs. > **Illumination Map Batch** > Warning shown if the selected number of nodes is larger than the total amount of batch licenses. > Fixed license bug for Nucleus and demo versions when generating IMAPs. > **Illumination Map Utility** > Fixed bug when trying to remove illumination function on global IMGs. > Fixed crash when combining an imported global map with another map. > **Ray Path Generator** > Fixed bug in internal technical settings causing crash in some rare cases. > Adjusted event file reading to take into account new optional event parameters. > In addition, stability fixes, minor improvements and miscellaneous bug fixes. - [NORSAR-3D 5.4.2 (November 12, 2010)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-4-2-november-12-2010-article2935-1263.html) > Version 5.4.2 adds new functionality to the Model Builder for using a polygon as area-of-interest for surface editing. In addition minor improvements, stability fixes and bug fixes. > **Model Builder** > New functionality to draw a polygon on an interface, and smooth the part that is inside. > New functionality to draw a polygon on an interface, and remove the vertices that are inside/outside. > During interactive block/horizon definition, a red marker indicates when cursor position can be used. > During interactive block/horizon definition, lines are drawn between the interfaces that belong to the block/horizon that is currently defined. > Interface intersection menus are put in a single menu for faster response if user cancels the process. > Improved interface intersections to avoid creation of many tiny interfaces if the same interfaces are intersected repeatedly. > Removed flip of the positive direction of the interface normal within an interface, which could appear in some rare cases. > **Illumination Map** > Fixed issue that default color maps were not available in the function rendering dialog, and that color functions could not be found. > Fixed issue that Trimesh IMGs could not be created in IMG setup. > Fixed issue that if there are several ray codes in the selected event set, one is selected by default, which caused confusion. Now a dialog for selecting ray codes pops up. > **Common Shot Wavefront Tracer** > Fixed issue that when "Event Attribute Storing Option" set to "Synthetic Seismogram" in Common Shot Wavefront Tracer, the "Ray Normal Vector at Receiver" wasn't stored, which is necessary if the "Chosen Direction" is selected by the Seismogram Generator. > **Flower Plot** > Fixed issue that generation failed when another ray code than dirP or dirS was selected. - [NORSAR-3D 5.4 (July 1, 2010)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-4-july-1-2010-article2936-1263.html) > Version 5.4 introduces a new Illumination Map batch system which enables parallel generation of illumination maps on a cluster or a heterogeneous network of computers. In addition the Model Builder is extended with new functionality to do time-depth conversion. > **Cube Import** > Extended with support for symmetry axis used to define TTI anisotropy > **Cube Export** > New option for how to write inline/crossline information > **Survey Import** > Reduced memory requirements when using Point Indices sub selection when importing SPS survey files > **Model Builder** > New functionality to perform time-depth conversion by vertical stretching > **Wavefront Common Shot Tracer** > Minor user interface improvements > **Illumination Map** > Improved user interface for interactive generation of IMAPs > New batch system for parallel generation of IMAPs > **Illumination Map Utility** > Improved handling of missing data, so it will continue combining data even if some data are missing > **Flower Plot** > More efficient anisotropic calculations > Minor bug fix regarding handling of normal vectors > In addition, stability fixes, minor improvements and miscellaneous bug fixes. - [NORSAR-3D 5.4.1 (August 18, 2010)](https://www.norsarinnovation.com/norsar-3d/norsar-3d-5-4-1-august-18-2010-article2937-1263.html) > **Prepare Greens Functions** > Fixed file access bug. ##### [NORSAR-2D](https://www.norsarinnovation.com/software/release-notes/norsar-2d_2/) - [NORSAR-2D 5.3.1 (July 20, 2015)](https://www.norsarinnovation.com/software/release-notes/norsar-2d/norsar-2d-5-3-1-july-20-2015-article2940-1264.html) > Version 5.3.1 is a bugfix release. > **Depth Mapper** > Fixed bug when storing SMIF file and undefined values > **Model Builder** > More robust SMIF storing > **Tracers** > Fixed bug in Image Ray Tracer due to large number of ray codes > Allowing longer interface names in Common Shot Tracer > **Viewer** > New reflectivity viewer - [NORSAR-2D 5.3 (February 17, 2014)](https://www.norsarinnovation.com/software/release-notes/norsar-2d/norsar-2d-5-3-february-17-2014-article2941-1264.html) > Version 5.3 introduces a new fully integrated 3D viewer with the ability to plot all data objects in a NORSAR project. The viewer is the first step to bring NORSAR-2D into the new NORSAR Seismic Modelling platform. This framework is already used for SeisRoX. Included in the release is also improved well handling of imported wells. > **FlexNet licensing ** > Updated licensing to FlexNet 11.11 to handle alternate network interface names (e.g. *em1*) > **File Manager ** > Upgraded to handle imported wells > **Viewer (NEW) ** > Complete new module with advanced functionality to display all data objects in a NORSAR project, including NORSAR-2D section and models. In addition NORSAR-3D elements can be displayed such as IMAPs, FPLOTs and survey fold maps. > Option for interactive click & shoot of direct rays in 3D models > **Well Import** > New functionality to upscale a well log > New option to compute TVD from MD > New option to derive VP and VS from slowness. > **Model Builder** > Removed requirement for two-way-traveltime when loading a well > Assign property from wells now includes Vs and Density > Option to store model as a SMIF file for immediate use in NORSAR-3D > **Tracers** > Fixed bug causing specification of "General Ray Code" to fail > **Seismogram Generator** > Fixed "Include geometrical spreading" option such that when set to OFF also phase shift due to KMAH is off > In addition minor bug fixes and improvements. - [NORSAR-2D 5.2.1 (November 20, 2012)](https://www.norsarinnovation.com/software/release-notes/norsar-2d/norsar-2d-5-2-1-november-20-2012-article2942-1264.html) > Version 5.2.1 is a compatibility update for the Nucleus version and an upgrade of the FlexNet licensing system. > **Nucleus** > Fixed compatibility issue for Nucleus+ > **Licensing** > Upgraded to FlexNet 11.10 - [NORSAR-2D 5.2 (April 19, 2011)](https://www.norsarinnovation.com/software/release-notes/norsar-2d/norsar-2d-5-2-april-19-2011-article2943-1264.html) > Version 5.2 is a major update of NORSAR-2D. Several new functionalities are added; new project definition, new digitizing tool, new SEG-Y property import/export and a new well import. In addition many size limitations are removed or reduced and bugs are fixed. > **Project definition** > The project definition module is now in line with NORSAR-3D and SeisRoX. > **Digitizing tool** > New digitizing tool where scanned images or seismic on seg-y format can be used as background when digitizing horizons. The horizons can be used directly in the Model Builder. > In addition it can be used as an advanced SEG-Y displayer. > **Well import** > New well import. Well track and well log can be imported. > Imports ascii column data. User defined interpretation of each column. > Predefined set ups can be stored. > **SEG-Y property import** > New property import. > Imports property slices from cubes on SEG-Y format. > **SEG-Y property export** > New property export. > Exports property grids on SEG-Y format. Property grids canbe made by gridding a model. > **Model Builder** > Use the imported wells to define properties. > Increased number of allowed samples in horizons, property grids and SMIF files. > Improved messages when depth converting. > **Tracers** > Reference interface is introduced in the VSP tracer. The same option is available in the Common Shot tracer and the NIP tracer. In NORSAR-3D, this is called projection interface. > Default search angles in the VSP tracer are now set to 0 –360 degrees. > Increased number of events in spikeogram plot, and number of shots and receivers. > **Seismogram Generator** > Fixed bug when using diffraction events. - [NORSAR-2D 5.1.6 (October 23, 2009)](https://www.norsarinnovation.com/software/release-notes/norsar-2d/norsar-2d-5-1-6-october-23-2009-article2944-1264.html) > Version 5.1.6 includes 5.1 plus all patches. > **Common Shot Ray Tracer and VSP Ray Tracer** > Fixed a bug where no more diffraction events was written when reachingthe 2000 traceslimitation. ##### [SeisRoX](https://www.norsarinnovation.com/seisrox/category1265.html) - [SeisRoX 3.0.1 (June 25, 2014)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-3-0-1-june-25-2014-article2945-1265.html) > Version 3.0.1 is a maintenance release with improvements in functionality and bugfixes. > Workflows > Crash when reading large Illumination Vector files fixed > Minor validity check problem for SeisRoX Full-field workflows fixed > Minor improvements in Full-field process error messages > More robust full-field process (e.g., option to limit number of parallel processes) > Full-Field N3D background model process fix to avoid unnecessary re-tracing > 3D Viewer > Enable interactive clipping of SeisRoX horizon models > Fixed crash when plotting horizon models with large densely sampled horizons > Fixed crash when plotting seismic data with name containing "." > Small modifications in Full-field PSF display > Improved update of model horizon display after a model has been edited > Cube Import and Seismic Import > More robust analysis of densely sampled rotated SEGY cubes > Fixes in file information preview for large SEGY cubes > Survey Generator > Added option to generate new surveys: Project shots/receivers onto surfaces > In addition, minor bug fixes and improvements. - [SeisRoX 3.0.2 (June 25, 2015)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-3-0-2-june-25-2015-article2946-1265.html) > Version 3.0.2 is a maintenance release with a focus on improving data import and upgrading the general rock physics framework: > CO2 is introduced as an additional fluid to be handled by rocks in order to estimate elastic properties of reservoir models. > Import of reservoir models from various sources is now facilitated by a newly established Petrel link that supports efficient data exchange between SeisRoX and Petrel. > Import of seismic or property cubes in SEG-Y format is significantly improved by a new import module that applies a new generation of the automatic topology analyser and allows for trace header review, selection, and scaling. > In addition, bug and stability fixes as well as minor improvements were done, such as adding maximum frequency information to generated wavelets in order to facilitate workflow setup and result analysis. > **Rock Builder** > CO2 as a fully integrated additional fluid in rocks. Setup of rocks now allows for including information on CO2 content, which may have strong impact on the derived elastic properties. > **Petrel plugin - NEW** > Efficient model exchange between SeisRoX and Petrel > **Upgraded SEG-Y import** > Much improved import of seismic or property cubes. > New generation of the automatic topology analyser. > SEG-Y trace header review, selection and scaling. > **Wavelets** > Maximum frequency information added to generated synthetic wavelets. > **Reflectivity Viewer - NEW** > Added new reflectivity viewer where reflectivity can be plotted as a function of incident angle. > **1D Model Editor** > Added visualization of the model being edited. - [SeisRoX 2.2.1 (June 27, 2012)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-2-1-june-27-2012-article2947-1265.html) > This is a bugfix release. > **Rock Editor** > Rock Calibration workflow fixed. > **Workflows** > Fixed storing of workflow so results are not deleted. > Fixed export of SEG-Y in case of Angle Range option. The sum of angle ranges is now exported. > Handling of property names with colon or stars on Windows. > Fixed reflectivity calculations in cube models. > Improved property gridding. - [SeisRoX 2.2.2 (October 26, 2012)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-2-2-october-26-2012-article2948-1265.html) > This is a bugfix release. > **Workflows** > Improved handling of I-vector files> 2GB > Fixed handling of complex filters - [SeisRoX 3.0 (February 13, 2014)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-3-0-february-13-2014-article2949-1265.html) > This release is a major update of SeisRoX. It introduces the Full-field workflow for PSDM simulation of large reservoir models using spatially varying Points Spread Functions. > The built-in parallel processing capabilities together with the 64-bit architecture makes it feasible to perform large simulations on a laptop. > The release also introduces functionality to import surveys (SPS, P1/90, and ASCII), a new VSP walk above survey generator, a wavelet ASCII import and a synthetic wavelet generator. In addition bug and stability fixes and minor improvements. > **Workflows** > A new Full-field workflow for PSDM simulation of large reservoir models > Built-in parallel processing capabilities > Redefined workflow categories: > Local-target PSDM simulator (previously part of SeisRoX workflows) > Full-field PSDM Simulator (new) > Utility (previously part of SeisRoX workflows) > **Survey Import** > Support for import of ASCII, SPS and P1/90 surveys > **Survey Generator** > A new VSP walk-above survey generator using imported wells > **Wavelets** > New ASCII wavelet import > New synthetic wavelet generator > **Surfaces** > New analytic surface generator > **Seismic Data** > Import and display of seismic cubes for comparison with modelled data > **Licensing** > FlexNet 11.11 support > **Architecture** > 32-bit and 64-bit Linux and Windows support - [SeisRoX 2.2 (April 15, 2011)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-2-april-15-2011-article2950-1265.html) > This release is focused on extended rock physics functionality. In addition, coil survey and illumination vector combiner are introduced. In addition many bug fixes, stability fixes and minor improvements. > **Memory** > Utilize up to 4GB memory on both Linux and Windows > **Surfaces** > Option to remove header lines when importing grids > **Survey** > Introduced option to generate coil surveys > **Rock Editor** > Introduced new solids, Silt and Clay > Dry Frame: New equation for Dry bulk modulus and Dry shear modulus: Krief. > Pressure correction: New equation for Dry bulk modulus and Dry shear modulus: Macbeth. > New and more flexible import format > **Rock plotting** > New elastic properties (temporary results from Gassmanns equation): > DRY_BULK, DRY_SHEAR, DRY_RHO, DRY_VP, DRY_VS > SOLID_BULK, SOLID_SHEAR, SOLID_RHO, SOLID_VP, SOLID_VS, > FLUID_BULK, FLUID_SHEAR, FLUID_RHO, FLUID_VP, FLUID_VS > **Derived properties (wells, models and rock plotting)** > New elastic properties: > LAMBDA, BULKRHO, LAMBDARHO, SHEARRHO, BULKSHEAR, LAMBDASHEAR > **Illumination Vectors** > Introduced option to combine illumination vectors - [SeisRoX 2.1 (May 11, 2010)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-1-may-11-2010-article2951-1265.html) > This release includes the new functionality: > 1D time convolution > Use of SeisRoX models as background models > A completely new 2D Viewer for cross section display > In addition many bug fixes, stability fixes and minor improvements > **Project handling** > Fixed bug that project could not be converted to 2.0 > Improved process logging > **Well** > New function: Derive TVD from MD > New function: Derive TWT using a Time-Depth function > New function: Derive VP from TWT > Improved import of deviated wells > Possible to plot wells in the Time 3D Viewer > **Surfaces** > New: Support for time surfaces (import, convert depth/time, plotting) > **Survey** > More efficient handling of large surveys > **Wavelet** > New: Display includes plot of modulus and phase in the frequency domain > **Workflow** > New option to use a SeisRoX model as background model using an eikonal solver for travel time calculations. This makes it possible to use more complicated background models directly in SeisRoX without using NORSAR-3D to calculate overburden effects > New workflow: Standard 1D time convolution > New time to depth conversion option > **2D Viewer** > New 2D Viewer for cross-section plots > Option for wiggle line plots > Option to blend two sections into a dual plot > Options to set scaling, legend, colour mapping, and making snapshots - [SeisRoX 2.1.1 (November 26, 2010)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-1-1-november-26-2010-article2952-1265.html) > This release contains minor improvements, stability fixes and bug fixes. > **SEGY export** > Option to override inline/crossline indices from project > **Time-Depth conversion** > Added progress bar > **Workflows** > Different workflows can be run in parallel on the same project > Fixed use of Eikonal solver in background model > Improved Illumination vector data file handling to allow moving of projects > Allow reuse of Illumination vectors calculated using NORSAR-3D background models > Improved error messages when using NORSAR-3D background models > Prevent space in user defined filenames > Removed background type a la “(N3D)” from result file names > **Improvements and bug fixes** > Copy missing rock solid file when copying rocks between projects > Improved reflectivity sampling for target cubes with different sampling in different directions > Handling of undefined values in grid data files (Sgrh) > 2DViewer uses same colour maps as 3DViewer > 2DViewer bug fixes > Fixed memory leakage in 3DViewer - [SeisRoX 2.0.1 (December 11, 2009)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-0-1-december-11-2009-article2953-1265.html) > This release includes bug and stability fixes and minor improvements. > **Project handling** > Fixed bug that project could not be reverted > Fixed bug causing progress bar hang if a plotted horizon was reverted > **Well** > Fixed bug in handling of undefined values which caused that calculation of derived properties failed (for example Vp from Slowness) > **Survey** > Fixed path bug in Survey Generator which caused that nothing happened when OK was pressed > **Workflow** > Fixed bug in reflectivity mapping which could cause holes in the reflectivity on interfaces > Fixed bug in Angle Range summation > Fixed bug in property mapping of overhang structures > Improved reflectivity mapping of overhang structures > Seismic sub grids are now stored for each angle interval > Reflectivity can be set constant for the Angle Range option > Result info now shows IVEC percent per angle range > Summation of filter and reflectivity sub grids is done during workflow and not during visualization > More robust handling of NORSAR-3D GF files > Cross Section viewers will be closed when changing workflow > Fixed processing timer - [SeisRoX 2.0 (September 23, 2009)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-2-0-september-23-2009-article2954-1265.html) > Highlights of the new release are the ability to import a reservoir model as a cube and use it as a model element in a SeisRoX model, the Petrel plug-in for easy access of Petrel data, and the Time/Depth functionality is greatly extended. The SimPLI modelling is improved with several new options and the Illumination Vector generation is improved. In addition display options and the user interface is improved. > **SeisRoX cube models** > Extension of the SeisRoX reservoir model to include cubes as a model element. > A SeisRoX model can consist of a set of cubes, a set of horizons or both cubes and horizons, all with property values attached to each node. This makes it easy to import and use external cubes in the SeisRoX modelling. > **Petrel plug-in** > A new plugin for Petrel makes it possible to make a SeisRoX model directly from a Petrel simulation model or a Petrel geo model and write seismic data from the SeisRoX modelling back to Petrel for viewing and comparison. > **Cube Import** > New import function to import property cubes on SEG-Y format. > **Time/Depth functions** > Definition of time/depth functions is extended with an option to use a P-velocity cube as basis for the function. > **Fully integrated time domain** > All data elements and SeisRoX models can be defined and edited in both time and depth domain using a time/depth function transformation. > **Fully integrated time domain 3D viewer** > All elements can be plotted simultaneously in both the time viewer and depth viewer. > **Well handling** > More flexible import of well data and prediction of new logs based on depth trends. > **Handling of general surveys** > All NORSAR-3D surveys can now be sub-selected, plotted and used in the SeisRoX modelling. Sub-selection filtering based on X-offset and Y-offset is added. > **Illumination Vector improvements** > Tighter integration between NORSAR-3D and SeisRoX makes it easier and more flexible to take into account survey sub-selections and PSDM filters when generating the Illumination Vectors. In addition a new plot option to compare Illumination Vectors is added. > **New SimPLI modelling options** > New options and improvements in the SimPLI modelling are introduced to simulate various amplitude effects, including geometrical spreading and transmission. In addition, when selecting a pulse, a new option allows to simulate deconvolution by replacing the spectrum of the pulse by a white-spectrum. > In addition stability fixes, minor improvements and miscellaneous bug fixes are included. - [SeisRoX 1.2.4 (March 19, 2009)](https://www.norsarinnovation.com/software/release-notes/seisrox_old/seisrox-1-2-4-march-19-2009-article2955-1265.html) > The release includes minor improvements and bug fixes. > **SEGY Export** > Select unit of coordinates and depth: meters or feet > Select value for undefined nodes in the exported traces > Error message if all values are undefined or zero > New textual header including grid position in both UTM and Inline/Crossline > New trace header including coordinates in both UTM and Inline/Crossline > Optimized memory handling to export larger property cubes > **Property Workflow** > Optimized memory handling to generate larger property cubes (up to 448 MB) > **3D Viewer** > Optimized memory handling to plot larger property cubes ### [Technical Information](https://www.norsarinnovation.com/support/technical-information/) ### [FAQ](https://www.norsarinnovation.com/support/faq/) > Find the answers to frequently asked questions about NORSAR software. #### [NORSAR-3D](https://www.norsarinnovation.com/support/faq/norsar-3d/) - [Plotted rays do not hit the receiver](https://www.norsarinnovation.com/software/support/faq/norsar-3d/plotted-rays-do-not-hit-the-receiver-article2786-1254.html) > NORSAR-3D uses the Wavefront construction method to model the seismic events (see chapter 2.4 in the User's Guide) The wavefront construction method mimics a true wave propagation through a model. The event attributes at a receiver position are calculated on basis of the wavefront parameters, not single rays. The single rays are just approximated ray paths traced with take-off angles estimated from the wavefront construction. In models with strong velocity gradients and/or complex structures, these approximated ray paths may miss the target. - [What is the definition of the P and Q matrices in NORSAR-3D?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/what-is-the-definition-of-the-p-and-q-matrices-in-norsar-3d-article2787-1254.html) > Our calculation of Q and P matrices of size 2 x 2 is based on a Hamiltonian function corresponding to traveltime as the variable along the ray (see, e.g., Cerveny, 2001). For isotropic media, the differential equations that we use are the following: > dQ/dt = v^2 P > dP/dt = -v^{-1}VQ > ds/dt = v > with the initializations > Q(0)=0 > P(0)=I . > The matrices Q and P refer to a local ray-centered system which is continuously rotated along the ray (Popov and Psencik, 1979). This means that we also need an additional differential equation describing the change of rotation of the basis vectors of the system. For details, see Cerveny's books from 1985, 2001 or his earlier work on the subject. > In the equations above, v is the velocity in the current point on the ray, and V is a 2 x 2 matrix containing second derivatives of velocity with respect to local ray-centered coordinates. The "0" and "I" denote, respectively, the zero matrix and identy matrix of size 2 x 2. - [Can you explain the accuracy parameter under the technical parameter menu? What quantity is more or less accurate and by how much?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/can-you-explain-the-accuracy-parameter-under-the-technical-parameter-menu-what-quantity-is-more-or-less-accurate-and-by-how-much-article2788-1254.html) > During tracing of ray segments connecting two wavefronts, we obtain an estimate of the square of maximum error in distance per second traced ray. This quantity, ERR, has the unit of velocity squared (km²/s²). According to whether the user selects accuracy "Low", "Moderate", "High", or "Very High" the quantity ERR will be kept between predefined limits. The current limits set in the program are the following: > Low: > ERR must be - [How is the seismic amplitude defined and which parts can be extracted?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-is-the-seismic-amplitude-defined-and-which-parts-can-be-extracted-article2789-1254.html) > https://www.norsarinnovation.com/getfile.php/132215-1471440405/norsar.no/Software/FAQ/NORSAR-3D/n3d_v302_amplitudes.pdf > Amplitudes in NORSAR-3D https://www.norsarinnovation.com/getfile.php/132215-1471440405/norsar.no/Software/FAQ/NORSAR-3D/n3d_v302_amplitudes.pdf (PDF) - [How are the angles defined in NORSAR-3D (e.g. theta & phi in the Wavefront Tracer?)](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-are-the-angles-defined-in-norsar-3d-e-g-theta-phi-in-the-wavefront-tracer-article2790-1254.html) > Definitions of angles in NORSAR-3D https://www.norsarinnovation.com/getfile.php/132218-1471440412/norsar.no/Software/FAQ/NORSAR-3D/n3d_v302_angles.pdf (PDF) - [The Common Shot Wavefront Tracer crashes during the loading of a model](https://www.norsarinnovation.com/software/support/faq/norsar-3d/the-common-shot-wavefront-tracer-crashes-during-the-loading-of-a-model-article2791-1254.html) > , if a model already has been loaded which contains layers that share property grids with other layers. > Exit the Common Shot Wavefront Tracer and read the model. - [The number of events allocated is too small](https://www.norsarinnovation.com/software/support/faq/norsar-3d/the-number-of-events-allocated-is-too-small-article2792-1254.html) > The "*Maximum and Average # Events In Each Receiver*" in the dialog "*Set Event Attributes*" is the number of events for all the ray codes together. If the number of ray codes is large, it may lead to a stop in the modelling when the total number of events allocated is reached. > Increase the "*Maximum and Average # Events In Each Receiver*" so that all events for all ray codes may be stored in memory. - [How can I run the batch tracer with a job scheduler?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-can-i-run-the-batch-tracer-with-a-job-scheduler-article2793-1254.html) > If you want to use a job scheduler system on the cluster, the system administrator can configure the batch tracer by editing a user defined job-script. The job-script is used to start the slave job on the remote machine. > Configuring the job-script > Make a copy of /bin/scripts_user/TEMPLATE_job.sh > Your copy must be located on the same directory as the template. > Edit the last line in the script to this (MOAB example): qsub [ qsub_option(s) ] ${CMD} ${MODULE} > Configure the batch tracer to use the script > Start the WaveFront Batch Tracer > Open the 'Set Machines' window in the Batch tracer > Select the remote machine > Select 'Use Advanced Configuration' > Select 'Job Script' and push the arrow button > Select your job script > Close the window and push 'Change Machine' and then OK. > The 'Single Access Check' and the 'Initial Check Access' are not supported for machines which use Advanced Configuration. - [How can I configure the batch tracer to run on a cluster?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-can-i-configure-the-batch-tracer-to-run-on-a-cluster-article2794-1254.html) > On some systems (for example clusters) it is not possible to reach a node with a 'remote shell login' (rsh) command or you want to use a queing system on the cluster. In these cases the system administrator can configure the batch tracer by editing two user defined scripts: the rsh-script and the job-script. The rsh-script is used to start the batch remotely on another machine. (See "How can I use ssh instead of rsh?" above.) The job-script is used to start the slave job on the remote machine. > **Job Script:** > This script is used to start the job on the remote machine. See the */bin/scripts_user/TEMPLATE_job* script for a detailed description. The filename must be on the form *xxxx_job.sh* and it must be located in - [Some guidelines for use of NORSAR-3D in PSDM applications](https://www.norsarinnovation.com/software/support/faq/norsar-3d/some-guidelines-for-use-of-norsar-3d-in-psdm-applications-article2795-1254.html) > NORSAR-3D is a powerful tool for calculation of Green's functions, that is, tables of traveltimes and other parameters, for Kirchhoff type Pre-Stack Depth Migration. > In the following we discuss some aspects of the use of NORSAR-3D in the PSDM context. A general knowledge of NORSAR-3D is assumed. > **The subsurface model** > In NORSAR-3D the subsurface model can be a single velocity field, provided as a 3D (Seg-Y) cube, or a layered model with velocity discontinuities across the interfaces, or any combination of these. Notice that inside each block/volume in the model, the velocities must vary slowly. You can filter (smooth) velocity fields in NORSAR-3D to make the slowly varying field. The slowly-varying-velocities requirement also applies if the model consists of just one block (volume) with a single velocity field: The velocity may not change rapidly. > If there are large velocity contrasts in the model, we recommend that the contrast is represented by an interface, and that there is a velocity discontinuity across the interface. See the User's Guide for Version 5.0, section 6.5.4.9 for details on how to split the velocity field properly. > **Example** > In areas with salt bodies surrounded by sediment layers, with a quite continuous velocity increase in the sediments, the salt bodies are represented as separate blocks (volumes) with constant salt velocity, while the surrounding sediments is a single block with a continuous, smooth velocity field. > Also notice that you now have the VTI anisotropy option: You can provide the Thomsen Epsilon and Delta as constants, 2D grids or cubes individually for each block (volume) in the model. A model can be a mixture of anisotropic and isotropic blocks. > The smoothness requirements discussed above also apply to densities and the Thomsen parameters. > **Receivers and shots in the modelling of PSDM traveltime tables** > In the Common Shot Survey Generator you can make a 3-dimensional grid of receivers. In PSDM we use the depth points as this 3D 'receiver' grid. In practice it must be desampled compared to the actual PSDM 3D depth point grid, using for example every other or third node along each direction. > The shots in the modelling are the (regularized) shot/receiver positions on the surface. > **Event attributes - what to store and how** > In the Common Shot Wavefront Tracer in 'Functions>Set Event Attributes', select 'Prestack Depth Migration' to minimize the number of parameters stored for each event. You can tune the data storage further in the 'Edit Event Attribute Settings'. By default the PSDM option gives you the Static Event File Format and just one event per receiver. Increase this if you want multi-arrivals. The purpose of the sorting order ('Receiver Lines (slow-->fast)') is to fine-tune the event storage to how you will access the data later on in the PSDM process. It should not be necessary to change this parameter in initial tests. > **Parameters for the Wavefront Tracing** > Most default parameters for the wavefront tracing are in version 5.0 quite OK for the dimensions and level of details usually found in seismic exploration. > Set the Maximum Traveltime to match the max. traveltime recorded in the data. Notice that the max. traveltime here is for one-way propagation, from positions on the surface and down to depth points. > If high transmission angles at interfaces are involved, increase the Maximum Incidence/Departing Angle. > Use 'No Shot Similarity'. The Shot Similarity may slow down the computations in PSDM applications. The reason is that there is a very large number of receivers, thus a large proportion of the computed wave field passes through receivers. It also takes a quite long time to collect info from adjacent 'full' shots to construct the initial wavefronts for the 'intermediate' shots. > Before you start a major modelling job, model just a few shots, and check the results in the interactive common-shot tracer and with the event file extractor. > For a large job, use the batch tracer and divide into smaller sub-jobs for parallel computing. > Inspect the results for selected shots and receivers in the Common Shot Wavefront Tracer and the Event Attribute Extractor. Use the NORSAR-3D Event File toolkit to access the NORSAR-3D results from your PSDM application. - [How do I load wells into NORSAR-3D and show them in Map Utility?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-do-i-load-wells-into-norsar-3d-and-show-them-in-map-utility-article2796-1254.html) > The Map Utility can import wells on the NORSAR SwtrD file format (see below.) The file must have suffix '.SwtrD' > Well example file: > # well_trajectory 1 * X,Y : Absolute UTM x,y at surface location in km * dx,dy : Relative UTM x,y to surface location in km * TVD : True Vertical Depth in km * DAH : Depth Along Hole(Measured Depth) in km ** X Y TVD 1000.000 2000.000 0.0 * dx dy TVD DAH 0.0 0.0 0.5 0.5 0.0 0.0 1.0 1.0 ... - [How do I do parallel processing on a cluster?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-do-i-do-parallel-processing-on-a-cluster-article2797-1254.html) > The Wavefront Batch Tracer can be executed in parallel on a MPP (Massively Parallel Processor) architecture, a cluster architecture or a network of workstations, e.g. Linux PCs. > The Wavefront Master Batch Tracer will divide the simulation into a number of separate, independent jobs, each consisting of one or more shots. One job runs on one node. > Each node runs an instance of the NORSAR-3D Batch Tracer module and the node must therefore have access to the software disc, project data disc and must be able to communicate with the license server. > The license server can be any machine in the network as long as it is reachable by all nodes and machines running NORSAR-3D. - [How can I use ssh instead of rsh?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-can-i-use-ssh-instead-of-rsh-article2798-1254.html) > On some systems (for example clusters) it is not possible to reach a node with a 'remote shell login' (rsh) command. In these cases the system administrator can configure the batch tracer by editing the user defined script *rsh-script*. The script is used to execute a command on a remote machine. > Edit the script* /bin/scripts_user/TEMPLATE_rsh* to use ssh instead of rsh. The filename must be on the form *xxxx_rsh.sh *(for example *mycluster_rsh.sh*) and it must be located at *> .ssh/authorized_keys* > update *known_hosts* for each node: *ssh user@hostXX* - [Tracing does not start](https://www.norsarinnovation.com/software/support/faq/norsar-3d/tracing-does-not-start-article2799-1254.html) > Tracing sometimes fails due to too many points in the exploding source wavefront. > Sample the wavefront sparser in *Functions -> Trace Wavefronts... -> Set Technical Parameters...* - [Missing events in dynamic calculations](https://www.norsarinnovation.com/software/support/faq/norsar-3d/missing-events-in-dynamic-calculations-article2800-1254.html) > Events are sometimes lost when dynamic calculations (i.e. including amplitudes) are done. > Sample the wavefront denser in *Functions;Trace Wavefronts... -> Set Technical Parameters...* - [Grids non conform in Multi Grid Geometry Builder](https://www.norsarinnovation.com/software/support/faq/norsar-3d/grids-non-conform-in-multi-grid-geometry-builder-article2801-1254.html) > The *Multi Grid Geometry Builder* module requires that the grids have exactly the same sampling and origo. If you get this message, check your grids in *Grid Utility*. In this module you can see these parameters. - [Intersection of interfaces](https://www.norsarinnovation.com/software/support/faq/norsar-3d/intersection-of-interfaces-article2802-1254.html) > Intersection between interfaces with coincident borders creates a lot of new, tiny interfaces along the border. Happens most commonly if some interfaces have been intersected, and the same intersection is repeated. > In *Options>Interfaces>Intersect*, set "*Temporary extension*" to 0.0. - [Storing a model takes a long time](https://www.norsarinnovation.com/software/support/faq/norsar-3d/storing-a-model-takes-a-long-time-article2803-1254.html) > To store a model as `ready for ray-tracing' may take a long time, but only if the interfaces in the model are new or are modified. > Store intermediate results as group/incomplete model. Store only the final model as `ready for ray-tracing'. - [Min/max plotting values](https://www.norsarinnovation.com/software/support/faq/norsar-3d/min-max-plotting-values-article2804-1254.html) > In plot parameters (*Options> View> Plot*): Lower/Step/Upper may be wrong if the unit has been changed in *Options> Units*. > Repeat the input of Lower/Step/Upper. - [Slow plot update when the hierarchy is changed](https://www.norsarinnovation.com/software/support/faq/norsar-3d/slow-plot-update-when-the-hierarchy-is-changed-article2805-1254.html) > This can happen even when the changes do not change the plot. > In "*Options>View>Update*" switch "*Major changes*" from "*Full ASAP*" to "*Explicit only*". - [Inconsistent interface normal direction](https://www.norsarinnovation.com/software/support/faq/norsar-3d/inconsistent-interface-normal-direction-article2806-1254.html) > In some cases the positive direction of the interface normal along some parts of an interface is opposite to the positive direction along other parts of the same interface. This may occur if there are some very thin, long, needle-like triangles in the interface, and especially if such triangles stretch all across the interface. To fix this, make the triangles more regular. There are different tools to fix this: > ‘*Interfaces> QC*’ with the options ‘*Flat triangles*’ and ‘*Try to repair*’ enabled. > ‘*Interfaces> Smooth> Smooth and resample*’, usually with the ‘*Border*’ option ‘*Use to stamp out*’ enabled. > ‘*Interfaces> Subdivide*’ > The tools in ‘*Primitives> Move> Single Vertex*’ to move triangle vertices one by one. - [Problems in smoothing](https://www.norsarinnovation.com/software/support/faq/norsar-3d/problems-in-smoothing-article2807-1254.html) > Surface smoothing, *Interfaces;Smooth surface...,* fails for some interfaces. Curvature may even increase, especially close to the borders. > Try to change the smoothing parameters, or, if the surface is single-valued, use the function *Interfaces;Smooth and resample...* instead. - [Smoothing error](https://www.norsarinnovation.com/software/support/faq/norsar-3d/smoothing-error-article2808-1254.html) > In case of smoothing of grids with different increments (i.e. DX not equal to DY,) the smoothing will be stronger in the direction with the largest increment. > Resample the grid in Grid Utility to a more uniform sampling before smoothing. - [Problems in Adaptive Triangulation](https://www.norsarinnovation.com/software/support/faq/norsar-3d/problems-in-adaptive-triangulation-article2809-1254.html) > Adaptive triangulation may fail in *File;Store as Project Interface...* for irregular or large grids. > Smooth the grid more or increase the *Adaptive Triangulation* Parameters. - [The "Analyze" function does not use the Inline/Xline information in the grid formats that contain explicit Inline and Crossline information (e.g. Landmark format)](https://www.norsarinnovation.com/software/support/faq/norsar-3d/the-analyze-function-does-not-use-the-inline-xline-information-in-the-grid-formats-that-contain-explicit-inline-and-crossline-information-e-g-landmark-format-article2810-1254.html) > Enter the Inline/Xline information of the grid manually. - [How to export velocity cubes on SEG-Y format](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-to-export-velocity-cubes-on-seg-y-format-article2811-1254.html) > Use *File> Export> Model Gridder* to make a velocity cube of your model. Then export the cube with *File> Export> Cube Export*. - [How to export interfaces on ascii xyz grid format](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-to-export-interfaces-on-ascii-xyz-grid-format-article2812-1254.html) > There is no direct export feature for an interface in xyz representation, but there is an alternative way using the illumination maps. First a NORSAR3D ‘Eventset’ needs to be calculated in the NORSAR tracer (PP reflections for the interface which you want to export) then you can use this event set in the SMA (simulated migration amplitude) to calculate a SMA map. > In this process the interfaces will be resampled and thus the interfaces can be exported. While setting up the SMA you can underMapping surface geometry specify the sampling and dimensions of the desired grid. After the SMA is generated you can select under* Export illumination map* ASCII xyzf. Unfortunately you have to change the output by removing the SMA amplitude value afterwards, e.g., using *awk '{print $1, $2, $3;}' grid.xyzf grid.xyz*. That should provide you with the desired result. - [When reading ASCII text files, the import module (in NORSAR-2D or NORSAR-3D) gives error messages](https://www.norsarinnovation.com/software/support/faq/norsar-3d/when-reading-ascii-text-files-the-import-module-in-norsar-2d-or-norsar-3d-gives-error-messages-article2813-1254.html) > Some of the modules reading the ASCII files do not support: > the tabulation characters. Change them with blanks in any tex teditor and try again. > the *^M* characters produced if the ASCII file is written on a PC. Remove them using a text editor under UNIX or the dos2unix utility. - [I get the error message: No write access on directory "//.pf/"](https://www.norsarinnovation.com/software/support/faq/norsar-3d/i-get-the-error-message-no-write-access-on-directory-pf-article2814-1254.html) > When starting a module, a *printfile* containing log information, will automatically be created in a folder called *.pf*. If this is not possible, the error message is given. The* .pf* directory is located at the same level as the *Home Directory* in the select project dialog or in the environment variable SM_HOME. Check the access codes and the ownership of the *.pf* directory and set it readable and writeable for your user. - [All the modules exit as soon as they are started](https://www.norsarinnovation.com/software/support/faq/norsar-3d/all-the-modules-exit-as-soon-as-they-are-started-article2815-1254.html) > The read/write access of the *.pf* directory does not allow you to open a *printfile*. When starting a module, a *printfile* containing log information, will automatically be created. If this is not possible, the module willl exit. The *.pf* directory is situated at the same level as the *Project Directory*. Check the access codes and the ownership of the *.pf* directory and set it readable and writeable to your user. > The X-server on your display-host may not authorize access from the remote host on which you are running the software. The reasons may be: > Max number of X-clients are connected to your X-server. Exit some of the X-applications that are running. > Client is not authorized to connect to server. Authorize the client with *xhost +* - [How can I modify the NORSAR project directory setup?](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-can-i-modify-the-norsar-project-directory-setup-article2816-1254.html) > The restart files for NORSAR-2D and NORSAR-3D containing the project directory paths can be found in the following files: > *$HOME/.n2d/**, *$HOME/.n3d/** and *$HOME/.N23DProjectHomes.restart* > These files can be edited or removed without losing any data. - [How to use a NORSAR-2D model in NORSAR-3D](https://www.norsarinnovation.com/software/support/faq/norsar-3d/how-to-use-a-norsar-2d-model-in-norsar-3d-article2817-1254.html) > The conversion consists of two steps: > In NORSAR-2D, store the NORSAR-2D model on the Seismic Model Interchange File (.Smif) ASCII format. > In NORSAR-3D, load the .Smif file and make a NORSAR-3D model. > There are two different ways to do this conversion: > **Method 1** > You can always use this procedure, but it may in some cases change the global coordinates of the model. NORSAR-2D and NORSAR-3D may use different projects. > **Method 2** > can only be used if the NORSAR-2D modeling Section is an Inline or Crossline section in the NORSAR-3D project. NORSAR-2D and NORSAR-3D must use the same project. The coordinates are retained. > **Method 1** > From the NORSAR-2D Console Window select File> Export> SMIF Generator. > Set a suitable output directory. > Generate the .Smif model. It is stored as an ASCII file on the selected directory. > From the NORSAR-3D Console Window select File> Import> Model Import> N2D Smif import. > Set directory, select the .Smif file, and Convert. > A cylindrical, 2.5D NORSAR-3D model is made. The 2D model varies in the x-direction in the model coordinate system. The model is invariant in the y-direction. > **Method 2** > From the NORSAR-2D Console Window select File> Export> SMIF Generator. > Use the default output directory ‘./’. > Generate the .Smif model. It is stored as an ASCII file on the selected directory. > From the NORSAR-3D Console Window start Functions> Model> Model Builder. > In the Model Builder, select File> Load> 2D model from Smif. Select the section-model combination and load. > In the Model Builder, select 2DModels> 2.5D model from 2D. Select the section-model combination and make the 2.5D model. > Select the model in the hierarchy window and in File> Store> Selected group/model as… store it ‘As model ready for ray-tracing’. - [My files are not showing in file selection dialogs](https://www.norsarinnovation.com/software/support/faq/norsar-3d/my-files-are-not-showing-in-file-selection-dialogs-article2818-1254.html) > Due to an issue in Motif, files larger than 2 GB may not show up in some file dialogs. Please type in the file name manually. - [No IMAP workflow results are shown in the object list and IMAP workflow plots are automatically turned off after a short while](https://www.norsarinnovation.com/software/support/faq/norsar-3d/no-imap-workflow-results-are-shown-in-the-object-list-and-imap-workflow-plots-are-automatically-turned-off-after-a-short-while-article2835-1254.html) > This could be caused by a local Python installation on your computer. Please check if you have a *PYTHONHOME *environment variable set on your system and remove it before running NORSAR Software Suite. #### [NORSAR-2D](https://www.norsarinnovation.com/support/faq/norsar-2d/) - [Import stacking velocity function](https://www.norsarinnovation.com/software/support/faq/norsar-2d/import-stacking-velocity-function-article2836-1255.html) > Stacking velocity functions are imported into the Velocity Estimator from an *.Stab* file. The file format is described in the chapter Technical Guide in the NORSAR-2D User's Guide. > If there are problems in reading the file, check the following: > Leading blanks are NOT allowed in the header and comment records. > There must be no blank records in the file. > The message in case of syntax errors may be misleading. > Here is a small, valid sample file: > tabular property-1 * MDT MPT MXR MZR MSR 0 1 1 5 1 * XPOS CDPI NSAM 1.0 231 4 * TIME VEL, NSAM pairs 0.0 2.0 1.0 2.3 1.6 3.0 2.3 3.5 * XPOS CDPI NSAM 2.0 241 6 * TIME VEL, NSAM pairs 0.0 2.0 1.0 2.3 1.5 2.9 2.4 3.4 2.8 3.7 3.1 4.1 * - [Dump a NORSAR-2D model to an external format](https://www.norsarinnovation.com/software/support/faq/norsar-2d/dump-a-norsar-2d-model-to-an-external-format-article2837-1255.html) > Use the NORSAR-2D Model Scanner: > *NORSAR-2D Console: File->Export->Model Scanner...* > You select a velocity type and grid-geometry and store the result as file *.Sgrd* under the modelling section directory. > There are two FORTRAN subroutines in the NORSAR-2D installation that can read this format: > *smgarw.f* - Reads velocity grid into a 1D array. > *smmsrw.f* - Reads velocity grid into a 2D array. > The source code for these functions are stored in */aux/source/* - [Export SMIF](https://www.norsarinnovation.com/software/support/faq/norsar-2d/export-smif-article2838-1255.html) > A complete N2D model can be exported as a .Smif file, i.e., a Seismic Model Interchange File (use *N2D>File>Export>SMIF Generator*). This file is ASCII and contains both geometry and property information. Contact us if you want us to help you building a subroutine to convert the .Smif files into your own model files (and vice versa.) Note that a .Smif file can be imported in NORSAR-3D to generate 2.5 D models. - [Export property grid](https://www.norsarinnovation.com/software/support/faq/norsar-2d/export-property-grid-article2839-1255.html) > Property samples can be exported as: > N2D internal format: use the Data Import/Export module. The I/O Fortran subroutine *smmprw.f* can be used to convert from the N2D format into your own format. (The subroutine *smmprw.f *is located under */aux/source/* ) - [Export property samples](https://www.norsarinnovation.com/software/support/faq/norsar-2d/export-property-samples-article2840-1255.html) > Property samples can be exported as: > N2D internal format: use the Data Import/Export module. The I/O Fortran subroutine *smmprw.f* can be used to convert from the N2D format into your own format. (The subroutine *smmprw.f* is located under */aux/source/* ) - [Export horizons](https://www.norsarinnovation.com/software/support/faq/norsar-2d/export-horizons-article2841-1255.html) > Horizons can be exported as: > N2D internal format: use the Data Import/Export module. The I/O Fortran subroutine *smhzrw.f* can be used to convert from the N2D format into your own format. (The subroutine *smhzrw.f* is located under */aux/source/* ) - [Easy guide for project definition](https://www.norsarinnovation.com/software/support/faq/norsar-2d/easy-guide-for-project-definition-article2842-1255.html) > In the modelling project definition window enter the values in the sequence described in the window's help text, in section 2.5 'Easy guide on how...': > Select Mapping rule 'Fixed Step'. > Enter the inline and crossline indices. For each range first enter the 'To' value. > Switch to Mapping rule 'Fixed Indices'. > Enter the steps for inline index and for crossline index. Push 'Layout...', and set Crossline index Increase along local X-axis and Inline index Increase along local Y-axis. > Switch to Mapping rule 'Fixed indices & Step'. > Set local X and local Y. 'To' will automatically be adjusted to the inline-crossline range. > Enter the (X,Y) or Inline/Crossline point and the corresponding X-UTM and Y-UTM point. Optionally enter the Grid Rotation angle. > Push 'Plot coordinate system' to check the definition. > OK or Apply. - [Does NORSAR-2D simulate 'head-waves' (refraction energy?)](https://www.norsarinnovation.com/software/support/faq/norsar-2d/does-norsar-2d-simulate-head-waves-refraction-energy-article2843-1255.html) > The answer about modelling critical refraction is that the dynamic ray theory that we use in NORSAR-2D is not valid for so-called head-waves, that is, waves tied to critical refraction from a given interface. - [Traveltimes from 'free' diffraction points in NORSAR-2D](https://www.norsarinnovation.com/software/support/faq/norsar-2d/traveltimes-from-free-diffraction-points-in-norsar-2d-article2844-1255.html) > Diffraction modelling in N2D is restricted to 'diffractors' defined by physical edges in the intersection points between two interfaces in the model. In this case, algorithms are implemented which simulate traveltimes and amplitudes for diffracted events. The amplitudes will e. g. be dependent of how the two interfaces are oriented relative to the incoming and outgoing rays at the diffractor. However, some users have asked for the possibilities of defining 'free' diffraction points anywhere inside the model and to calculate traveltimes corresponding to these 'artificial diffractors'. There is currently no direct option for defining such 'non-physical' diffraction points, but some possible 'work-arounds' can be proposed:​ > Halving the velocities in the model and put a shot point into the diffractor > - external action for varying velocity grids > - only zero offset modelling > - no direct comparison with other reflected events > + fast > + traveltimes can be viewed within N2D > Put a shot point into the diffractor > - only zero offset modelling > - no direct comparison with other reflected events > - external action to double traveltimes > - traveltimes have to be exported to be viewed > + fast > + no changes to the model necessary > NIP tracer + triangle > - creating a triangle in the model > - only zero offset modelling > + fast > + direct comparison with other reflected events possible > + traveltimes can be viewed within N2D > CS/VSP tracer + triangle > - creating a triangle in the model > - slow > + finite offset modelling possible > + direct comparison with other reflected events possible > + traveltimes can be viewed within N2D - [How to use a NORSAR-2D model in NORSAR-3D](https://www.norsarinnovation.com/software/support/faq/norsar-2d/how-to-use-a-norsar-2d-model-in-norsar-3d-article2845-1255.html) > The conversion consists of two steps: > In NORSAR-2D, store the NORSAR-2D model on the Seismic Model Interchange File (.Smif) ASCII format. > In NORSAR-3D, load the .Smif file and make a NORSAR-3D model. > There are two different ways to do this conversion: > **Method 1** > You can always use this procedure, but it may in some cases change the global coordinates of the model. NORSAR-2D and NORSAR-3D may use different projects. > **Method 2** > can only be used if the NORSAR-2D modeling Section is an Inline or Crossline section in the NORSAR-3D project. NORSAR-2D and NORSAR-3D must use the same project. The coordinates are retained. > **Method 1** > From the NORSAR-2D Console Window select File> Export> SMIF Generator. > Set a suitable output directory. > Generate the .Smif model. It is stored as an ASCII file on the selected directory. > From the NORSAR-3D Console Window select File> Import> Model Import> N2D Smif import. > Set directory, select the .Smif file, and Convert. > A cylindrical, 2.5D NORSAR-3D model is made. The 2D model varies in the x-direction in the model coordinate system. The model is invariant in the y-direction. > **Method 2** > From the NORSAR-2D Console Window select File> Export> SMIF Generator. > Use the default output directory ‘./’. > Generate the .Smif model. It is stored as an ASCII file on the selected directory. > From the NORSAR-3D Console Window start Functions> Model> Model Builder. > In the Model Builder, select File> Load> 2D model from Smif. Select the section-model combination and load. > In the Model Builder, select 2DModels> 2.5D model from 2D. Select the section-model combination and make the 2.5D model. > Select the model in the hierarchy window and in File> Store> Selected group/model as… store it ‘As model ready for ray-tracing’. - [How can I modify the NORSAR project directory setup?](https://www.norsarinnovation.com/software/support/faq/norsar-2d/how-can-i-modify-the-norsar-project-directory-setup-article2846-1255.html) > The restart files for NORSAR-2D and NORSAR-3D containing the project directory paths can be found in the following files: > *$HOME/.n2d/**, *$HOME/.n3d/** and *$HOME/.N23DProjectHomes.restart* > These files can be edited or removed without losing any data. - [All the modules exit as soon as they are started](https://www.norsarinnovation.com/software/support/faq/norsar-2d/all-the-modules-exit-as-soon-as-they-are-started-article2847-1255.html) > The read/write access of the *.pf* directory does not allow you to open a *printfile*. When starting a module, a *printfile* containing log information, will automatically be created. If this is not possible, the module willl exit. The *.pf* directory is situated at the same level as the *Project Directory*. Check the access codes and the ownership of the *.pf* directory and set it readable and writeable to your user. > The X-server on your display-host may not authorize access from the remote host on which you are running the software. The reasons may be: > Max number of X-clients are connected to your X-server. Exit some of the X-applications that are running. > Client is not authorized to connect to server. Authorize the client with *xhost +* - [I get the error message: No write access on directory "/<xxxx>/.pf/"](https://www.norsarinnovation.com/software/support/faq/norsar-2d/i-get-the-error-message-no-write-access-on-directory-lt-xxxx-gt-pf-article2848-1255.html) > When starting a module, a *printfile* containing log information, will automatically be created in a folder called *.pf*. If this is not possible, the error message is given. The* .pf* directory is located at the same level as the *Home Directory* in the select project dialog or in the environment variable SM_HOME. Check the access codes and the ownership of the *.pf* directory and set it readable and writeable for your user. #### [Technical](https://www.norsarinnovation.com/support/faq/technical/) - [Message"GLX not found" when running NORSAR-3D remote via Exceed](https://www.norsarinnovation.com/software/support/faq/technical/message-glx-not-found-when-running-norsar-3d-remote-via-exceed-article2856-1256.html) > OpenGL is not supported by the regular version of Exceed. You need Exceed 3D to run NORSAR-3D. - [No text (blank user interface) in some modules](https://www.norsarinnovation.com/software/support/faq/technical/no-text-blank-user-interface-in-some-modules-article2857-1256.html) > If you experience a blank user interface with no text in some modules, please follow these instructions http://www.norsardata.no/Seismod/recipes/blankui/index.html. > If the user interface is blank again after a restart (after following the instructions above), please update to the latest version of the software. - [Fonts are too small or too big in some modules](https://www.norsarinnovation.com/software/support/faq/technical/fonts-are-too-small-or-too-big-in-some-modules-article2858-1256.html) > If you experience too small or too big fonts in some NORSAR-2D or NORSAR-3D modules, you can use a tool called *qtconfig-qt4* to adjust the font sizes. *qtconfig-qt4* is usually included with most Linux distributions. If you don't have this tool it can be installed using the provided package manager in your Linux distribution. - [Font problems when starting NORSAR-2D or NORSAR-3D](https://www.norsarinnovation.com/software/support/faq/technical/font-problems-when-starting-norsar-2d-or-norsar-3d-article2859-1256.html) > If you get font warning messages like: > *"Warning: Cannot convert string "-adobe-courier-bold-r-normal--18-180-75-75-m-*-iso8859-1" to type FontStruct"* > the font pack called *"A set of 75dpi ISO-8859-1 fonts for X"* or *"xfonts-75dpi"* must be installed on your system. > If you get messages like: > *XngOpenX: Could not find font 8x13* > *XngOpenX: Could not find font 9x15* > the font pack called *"ucs-miscfixed-fonts.noarch"* must be installed on your system. > The font packs can vary from Linux distribution to Linux distribution. If unsure or the above doesn't solve the problems, install all available font packs: *yum install *fonts** - [Missing libraries when starting NORSAR software](https://www.norsarinnovation.com/software/support/faq/technical/missing-libraries-when-starting-norsar-software-article2860-1256.html) > If you get messages about missing libraries when starting NORSAR software (for example missing libraries *libXp.so.6* or *libGLU.so.1* etc.), you will have to install these libraries. On RedHat or CentOS, they can be installed by using *yum*: > As root user, type: > *yum search libXp* > Only type in the name of the library, not the extensions (*.so.6* in this example. Also try without *lib* if nothing is found). This will show a list of packages, for example: > *libXp.i686 : X.Org X11 libXp runtime library > libXp.x86_64 : X.Org X11 libXp runtime library > libXp-devel.i686 : X.Org X11 libXp development package > libXp-devel.x86_64 : X.Org X11 libXp development package > libXpm.i686 : X.Org X11 libXpm runtime library > libXpm.x86_64 : X.Org X11 libXpm runtime library > libXpm-devel.i686 : X.Org X11 libXpm development package > libXpm-devel.x86_64 : X.Org X11 libXpm development package* > We want to install the *X.Org X11 libXp runtime library*. To install the 32-bit version of the library, type: > *yum install libXp.i686* > To install the 64-bit version, type: > *yum install libXp.x86_64* > Make sure that you install the correct 32 or 64-bit version, or if you are unsure, install both. > You can also use the *yum provides* command, but this will sometimes only list the 32 or 64-bit version of a library and also different versions numbers, so *yum search* is safer to use. Type: > *yum provides libXp.so.6* > Look for something like this: > *libXp-1.0.0-15.1.el6.i686 : X.Org X11 libXp runtime library* > Type: > *yum install libXp-1.0.0-15.1.el6.i686* - [Error message "NVIDIA: could not open device file /dev/nvidiactl (Permission denied)" in printfile when starting IMAP or Flower Plot](https://www.norsarinnovation.com/software/support/faq/technical/error-message-nvidia-could-not-open-device-file-dev-nvidiactl-permission-denied-in-printfile-when-starting-imap-or-flower-plot-article2861-1256.html) > To fix this, log in as root and do the following: > chmod 0666 /dev/nvidia* chown root /dev/nvidia* - [Error messages "NGFRFT: Error reading font 3" and "NGFRFT: READ error IOSTAT=174" when starting NORSAR-2D or NORSAR-3D](https://www.norsarinnovation.com/software/support/faq/technical/error-messages-ngfrft-error-reading-font-3-and-ngfrft-read-error-iostat-174-when-starting-norsar-2d-or-norsar-3d-article2862-1256.html) > There is an environment variable on Linux called *F_UFMTENDIAN* that can put the Intel processors in big-endian mode. If this variable is set to *big*, unset it or set it to *little*. - [Running Common Shot Wavefront Tracer - Batch locally fails with message "Remote connection failed"](https://www.norsarinnovation.com/software/support/faq/technical/running-common-shot-wavefront-tracer-batch-locally-fails-with-message-remote-connection-failed-article2863-1256.html) > When the local machine is used for the batch processing, that is, the ‘Use Local Machine’ option is selected in the ‘Machine Setup’ window, the batch process is sometimes stopped during the initialization (right after ‘Execute’ is pushed). There is a red popup message which says ‘Remote connection failed‘. > Work-around: Switch off the ‘Initial Access Check’ in the Wavefront Tracer Batch window. - [Common Shot Wavefront Tracer - Batch machine access check fails with error message "rsh login timed out"](https://www.norsarinnovation.com/software/support/faq/technical/common-shot-wavefront-tracer-batch-machine-access-check-fails-with-error-message-rsh-login-timed-out-article2864-1256.html) > If the machine access check in the *NORSAR-3D Common Shot Wavefront Tracer - Batch* fails, check the following: > The access check needs rexec enabled on the remote machine: > *cd /etc/xinetd.d * > Ensure that it says *disable = no* in *rexec* > */etc/rc.d/init.d/xinetd reload* > TCP port 514 must be open. > The user must have the same home directory on both machines, or the same *.rhosts* file. - [Setting up r-services for Common Shot Wavefront Tracer - Batch](https://www.norsarinnovation.com/software/support/faq/technical/setting-up-r-services-for-common-shot-wavefront-tracer-batch-article2865-1256.html) > The *NORSAR-3D Common Shot Wavefront Tracer- Batch* uses r-services to communicate with remote machines. > Check that rsh server is installed > *rpm -qa | grep -i rsh* > If not installed, install it. (It is not installed with the default installation of Suse.) > Enable xinetd > */sbin/chkconfig --list xinetd* > Check that it says on for 3 to 5. If not: > */sbin/chkconfig --level 345 xinetd on* > Configure xinetd services > *cd /etc/xinetd.d* > Set *disabled = no* in rexec, rlogin, rsh > These are server processes that are listening on TCP port 512, 513 and 514. > Default: Suse off, RedHat on. > Start xinetd > Reboot the computer or start using the script /etc/rc.d/rc5.d/S*xinetd > On Suse most of this can be done in *yast2 inetd*. On RedHat some of this can be done in *redhat-config-services*. - [General graphics problems](https://www.norsarinnovation.com/software/support/faq/technical/general-graphics-problems-article2866-1256.html) > Visit the web site of your graphics card manufacturer to see if there are any updated drivers for your graphics card available. On Linux, use the command: > lspci | grep VGA > to find which graphics card you have installed. - [A file does not show in a file dialog](https://www.norsarinnovation.com/software/support/faq/technical/a-file-does-not-show-in-a-file-dialog-article2867-1256.html) > Due to an issue in Motif, files larger than 2 GB may not show up in some file dialogs. Please type in the file name manually. - [Error message "/dev/stdout: Permission denied" when starting NORSAR-2D or NORSAR-3D](https://www.norsarinnovation.com/software/support/faq/technical/error-message-dev-stdout-permission-denied-when-starting-norsar-2d-or-norsar-3d-article2868-1256.html) > Login using *rlogin* instead of *su*. - [Font problems when using a VNC connection](https://www.norsarinnovation.com/software/support/faq/technical/font-problems-when-using-a-vnc-connection-article2869-1256.html) > When installing VNC, a configuration file is created: > */etc/vnc/config* > In this file there is a line specifying a font registry: > *-fp "catalogue:/etc/X11/fontpath.d,builtins"* > This is based on the font settings at VNC install time. > These settings can be overridden in a file: > */etc/vnc/config.custom* > If you create such a file and add the line: > *-fp "catalogue:/nonexisting/path.d,builtins"* > and start a new VNC server, you will only have a few fonts (the builtin ones.) > You no have one VNC session with a large set of fonts, and another with a much smaller set of fonts available. This means that even though the basic installation has all the fonts installed it is possible that the VNC session does not. > Possible solutions: > 1. A local solution which will enable fonts on the local VNC session currently running: > *xset +fp /usr/share/X11/fonts/misc > xset +fp /usr/share/X11/fonts/75dpi > xset fp rehash* > or... > *xset +fp catalogue:/etc/X11/fontpath.d > xset fp rehash* > 2. A persistent solution: > Create the file: */etc/vnc/config.custom* > Add the following line (if */etc/X11/fontpath.d* is a directory containing symbolic links to existing font directories): > *-fp "catalogue:/etc/X11/fontpath.d,builtins"* > Then, restart the VNC server(s). > Check that fonts are loaded in the VNC session by running *xlsfonts*. > If (2) does not work correctly, you can add a comma-separated list of paths to directories containing fonts.dir files. > Note that the xset commands do not necessarily have to be performed as root user. By doing it as an ordinary user, the font settings will be valid for the user. - [Self extracting installer hangs on Linux](https://www.norsarinnovation.com/software/support/faq/technical/self-extracting-installer-hangs-on-linux-article2870-1256.html) > If the self extracing NORSAR Software Suite installer hangs on Linux (never finishes unpacking), you can extract the tar.gz file for manual extraction. To get a tar.gz file type: > *tail -n +165 NORSAR_Software_Suite__Installer.sh> NORSAR_Software_Suite_Installer.tar.gz* > Then extract the tar.gz file with: > *tar zxvf NORSAR_Software_Suite_Installer.tar.gz* > Note: This will extract the files in the current directory. - [Cannot mix incompatible Qt library on Linux](https://www.norsarinnovation.com/software/support/faq/technical/cannot-mix-incompatible-qt-library-on-linux-article2871-1256.html) > Error message when trying to start NORSAR Software Suite on Linux: "Cannot mix incompatible Qt library (version 0x40805) with this library (version 0x40807)" > Unsetting or setting blank QT_PLUGIN_PATH environment variable should fix the problem. - ["KDOPWS: glXMakeCurrent failed!" error when starting NORSAR-3D or NORSAR-3D legacy tools](https://www.norsarinnovation.com/software/support/faq/technical/kdopws-glxmakecurrent-failed-error-when-starting-norsar-3d-or-norsar-3d-legacy-tools-article2872-1256.html) > This can happen when running NORSAR-3D or NORSAR-3D legacy tools using a remote X server solution, like FastX. > It can usually be solved by either enabling indirect rendering (for FastX, see OpenGL Support for legacy apps: https://www.starnet.com/xwin32kb/opengl-support-for-legacy-apps/ https://www.starnet.com/xwin32kb/opengl-support-for-legacy-apps/) > or > setting the DISPLAY variable to the machine running the X server: > If X server is running on a Windows PC named *WinPC*, set environment variable *DISPLAY=WinPC:0* - [Errors when a project is located on the root folder of a disk on Windows](https://www.norsarinnovation.com/support/faq/technical/errors-when-a-project-is-located-on-the-root-folder-of-a-disk-on-windows) > A project located directly on the root folder of a Windows disk can cause various problems. Moving it to a sub folder solves the issues. > This can cause problems: > *N:\MyProject* > This works: > *N:\projects\MyProject* > A project can safely be moved to a sub folder after it has been created. - [3D viewer background transparent when using XRDP](https://www.norsarinnovation.com/support/faq/technical/3d-viewer-background-transparent-when-using-xrdp) > If connecting remotely to a Linux machine using XRDP, the 3D viewers in NORSAR Software Suite can get a transparent background. To fix this, edit the XRDP settings: > Edit the file: */etc/xrdp/xrdp.ini* > Change *max_bpp=32* to *max_bpp=24* > Uncomment the line: *serverbpp=24* > Restart the XRDP server. #### [Licensing](https://www.norsarinnovation.com/support/faq/licensing/) - [How to get FLEXlm Host ID](https://www.norsarinnovation.com/software/support/faq/licensing/how-to-get-flexlm-host-id-article2874-1257.html) > NORSAR software uses a floating FLEXlm license. To determine the FLEXlm Host ID for the license server machine, use the following commands: > SUN: *hostid* > Linux: */sbin/ifconfig eth0* (Use *HWaddr* in *eth0* output and remove colons) > Windows: Open a command window and type *ipconfig /all*. Use the Physical Address of Ethernet adapter Local Area Connection. - [Merge several license files into one license file](https://www.norsarinnovation.com/software/support/faq/licensing/merge-several-license-files-into-one-license-file-article2875-1257.html) > Use one license file as base > Copy the *feature* lines (and** ONLY** the *feature* lines) from the other license files into the base license file, below the already existing feature lines in the base file. > Start the license server with the merged file. - [Installing the license files in a global place](https://www.norsarinnovation.com/software/support/faq/licensing/installing-the-license-files-in-a-global-place-article2876-1257.html) > Merge the license files. > If you want to use the *Norsar_FLEXlm* script to start the server, set *LM_LICENSE_FILE* in the *Norsar_FLEXlm* script. > Set *LM_LICENSE_FILE* in the *Norsar_2d* and *Norsar_3d* startup scripts. SeisRoX and the new NORSAR Software Suite will ask for the license server at startup, so this step is not needed. > Start the server. - [I have installed the license file on a new server, but I am having trouble getting a license](https://www.norsarinnovation.com/software/support/faq/licensing/i-have-installed-the-license-file-on-a-new-server-but-i-am-having-trouble-getting-a-license-article2877-1257.html) > On Linux, the path to all license files used are stored in a file called *.flexlmrc* which may overwrite the *LM_LICENSE_FILE* environment variable. Look in your home directory for the file *.flexlmrc*. Delete this file. > On Windows this is located in the registry. Open *regedit*, locate *HKEY_LOCAL_MACHINE->SOFTWARE->FLEXlm License Manager*. Delete the *NORSARLMD_LICENSE_FILE* entry. - [I have a demo/evaluation license file, but can't get a license, and I get a popup window with error message: "No such feature 'n2d_main'" or "No such feature 'n3d_main'"](https://www.norsarinnovation.com/software/support/faq/licensing/i-have-a-demo-evaluation-license-file-but-can-t-get-a-license-and-i-get-a-popup-window-with-error-message-no-such-feature-n2d-main-or-no-such-feature-n3d-main-article2878-1257.html) > Remember to set *SM_DEMO_VERSION* to *True* in *Norsar_2d* and/or *Norsar_3d* (located under */bin/startup*) - [Error message "Cannot connect to license server system (-15,570:113 No route to host)" or "Unknown host: <hostname>"](https://www.norsarinnovation.com/software/support/faq/licensing/error-message-cannot-connect-to-license-server-system-15-570-113-no-route-to-host-or-unknown-host-lt-hostname-gt-article2879-1257.html) > Check that the hostname in the licensefile is also listed in the /etc/hosts file. > The */etc/hosts* file looks something like this: > *127.0.0.1 localhost.localdomain localhost4 > ::1 localhost.localdomain localhost6* > Add the name of your license server to the end of the lines, so that they look like this: > *127.0.0.1 localhost.localdomain localhost4 myservername > ::1 localhost.localdomain localhost6 myservername* > If the above solution doesn't work, try to change the hostname in the licensefile to *localhost* and add the line *127.0.0.1 localhost* in the */etc/hosts* file. It is also possible to get a hint of what is wrong by using the command* /usr/sbin/ping hostname*. - [Unable to start the license server on Windows](https://www.norsarinnovation.com/support/faq/licensing/unable-to-start-the-license-server-on-windows) > FlexNet needs Visual Studio C++ run-time components to run. > **NORSAR Software Suite version 2021 and later (FlexNet 11.17)** > Error message *"The program can't start because MSVCR140.dll is missing"*. > Error message *"norsarlmd exited with status 53".* > Please download and install Visual Studio 2015 redistributable 32 and 64-bit versions from Microsoft: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170 https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170 > **NORSAR Software Suite version 2020.1 and earlier (FlexNet 11.11)** > Error message *"The program can't start because MSVCR120.dll is missing"*. > Please download and install Visual Studio 2013 redistributable 32 and 64-bit versions from Microsoft: https://www.microsoft.com/en-us/download/details.aspx?id=40784 https://www.microsoft.com/en-us/download/details.aspx?id=40784 > Try to disable the firewall before starting the server. After the server has started, enable the firewall again. > If the 32-bit version of lmgrd.exe is selected in LMTOOLS, try to select the 64-bit version (or the 64-bit version if the 32-bit version is selected.) > Try to start the license server in non-service mode in LMTOOLS (uncheck "Use Services" in the "Config Services" tab.) - [Error message "/flexlm/bin/x86/lmgrd: Command not found" when starting license server on Linux](https://www.norsarinnovation.com/software/support/faq/licensing/error-message-flexlm-bin-x86-lmgrd-command-not-found-when-starting-license-server-on-linux-article2882-1257.html) > FlexNet v11 requires LSB (Linux Standard Base) 3.0 or higher. Use the command *lsb_release -a* to check if LSB is installed. If not, install it using the packet manager for your Linux distribution. Make sure to install the correct 32 or 64-bit version of LSB. For example NORSAR-2D would need the 32-bit version and NORSAR-3D 64-bit would need the 64-bit version. You can have both 32 and 64-bit versions installed at the same time - [License error for "n3d_main" when starting NORSAR Software Suite](https://www.norsarinnovation.com/software/support/faq/licensing/license-error-for-n3d-main-when-starting-norsar-software-suite-article2883-1257.html) > NORSAR Software Suite and NORSAR-3D 5.7 share a *n3d_main *license feature. If you have a merged license file with both a NORSAR Software Suite license and a NORSAR-3D 5.7 license, FlexNet might have read the 5.7 license feature version when starting the server. NORSAR Software Suite cannot use this version of the feature. Please remove (or comment out with #) the *n3d_main 5.7* license feature from the merged license file and restart the license server. - [I have installed new licenses, but I am having trouble getting a license](https://www.norsarinnovation.com/support/faq/licensing/i-have-installed-new-licenses-but-i-am-having-trouble-getting-a-license) > If you are having problems getting new licenses to work, try to clear all references to old licenses. > On Linux, follow these steps: > Stop NORSAR Software Suite > Go to your home directory > Delete the file called: *.flexlmrc* > Go to: *.config/NORSAR* > Delete the file called:* license.conf* > Start NORSAR Software Suite and select your license > On Windows, follow these steps: > Stop NORSAR Software Suite > Open regedit (registry editor) > Go to: *HKEY_CURRENT_USER\Software\NORSAR\license\* > Delete the folder named: *flexnet_hosts_nss* > Go to: *HKEY_CURRENT_USER\Software\FLEXlm License Manager* > Delete the key named: *NORSARLMD_LICENSE_FILE* > Start NORSAR Software Suite and select your license ### [Academic Terms](https://www.norsarinnovation.com/support/academic-terms/) > NORSAR Innovation understands the importance of the role that academic institutions have to play in the development of both geophysics and geophysicists. ## [Training](https://www.norsarinnovation.com/training/) > NORSAR provides comprehensive training in all of the NORSAR Seismic Modelling software packages. We offer introduction courses for NORSAR-2D, NORSAR-3D and SeisRoX together with an Intermediate Level Modular course in NORSAR-3D. Training in VelRock can also be included in these courses if requested. - [NORSAR-2D Introduction Training Course](https://www.norsarinnovation.com/training/norsar-2d-introduction-training-course-article247-1078.html) > **2D seismic modelling using NORSAR-2D Stand-alone** > Duration: 2 days > **Who should attend?** > The course is suited for geophysicists and geologists with moderate to no experience in NORSAR-2D. > **Course outline** > This course provides a general introduction to the fundamental concepts of ray tracing and a basic introduction to NORSAR-2D Ray Modelling software. > **Software exercises:** > A brief tour through a complete modelling job. > Create a 3D project environment with 2D sections. > Import horizons and velocities from external files. > Build a subsurface model. > Define surveys. > Calculate and inspect rays. > Simulate shots, stacked sections and time-migrated sections. > Export on SEG-Y. > A tour through different ray tracing modules and tools > Time-to-depth conversion examples > A detailed course manual will be used during the course. Each participant will receive a copy of the manual and the course data. - [NORSAR-3D Introduction Training Course](https://www.norsarinnovation.com/training/norsar-3d-introduction-training-course-article248-1078.html) > **3D seismic modelling using NORSAR-3D** > Duration: 3 Days > **Who should attend?** > The course is suited for geophysicists and geologists with moderate to no experience in NORSAR-3D. In addition to the basic introduction to the package, emphasize will be put on problems and questions raised by the users of NORSAR-3D. > **Course outline** > This course provides a presentation of the general principles of ray modelling and its applications in NORSAR-3D. The model representation and the modelling methods of NORSAR-3D will be described through examples. Various applications of the modelling results will also be discussed. The first day of the course will focus on NORSAR-3D Basic (to be released soon in 2016) and can be attended separately. > Contents: > General introduction to ray based modelling: principles, benefits, approaches and pitfalls > Overview over NORSAR-3D Basic: introduction to user interface, simple model generation, workflow principles, illumination maps, and target-point oriented modelling (fast track illumination ray studies) > Overview over NORSAR-3D full version: integration of the previously known modules, introduction to Kirchhoff modelling > Practical training on project definition, data import, model building in depth domain, setting up surveys, setting up ray codes, setting up modelling runs, generation of illumination maps in various domains using filters and multi-maps > Generation of synthetics from conventional ray tracing and Kirchhoff modelling > A detailed course manual will be used during the course. Each participant will receive a copy of the manual and the course data. - [NORSAR-3D Intermediate Level](https://www.norsarinnovation.com/training/norsar-3d-intermediate-level-article249-1078.html) > Duration: 3 Days > **This course is an extension of the NORSAR-3D introductory course. It is specially designed for...** > Users with limited experience who want to refresh or extend their knowledge > Attendees of the introductory course who want to bridge the gap between training level and professional project requirements > Users who need more routine and are interested in some tips and tricks to do their professional work more efficiently > Users who wish to have better control on work flows or a head start for their own learning by doing process > **The main motivation for developing this course was…** > to provide a way to repeat some key information (without redoing the full introductory course and without losing too much time for the basics) > to bridge the gap between a controlled training situation with nicely prepared data and the advanced requirements for a real-life project > to gain in-depth understanding of pre-processing and modeling parameters and to learn how to tune them > to learn about potential pitfalls and possible workarounds > **Requirements** > It is not necessarily essential to have completed the NORSAR-3D Introductory course in order to follow this modular course. However, the ideal course attendee should at least have reached the user level of the introductory course, i.e.: > being aware of the principle features and use of NORSAR-3D > being aware of NORSAR-3D structure (including its tool-box character, principle menus, mouse functions, and NORSAR-3D model structure) > being aware of the principle work flow from data import to illumination maps > having used the software before, at least on introductory level > **Course concept and data** > This course has a modular structure. Though all modules can be worked through independently, Module 1 - Module 5 build on each other. If one of these modules is skipped or only briefly considered, prepared sample course projects are available, which can be used as a starting point. The following modules are currently available: > Introduction: Integration between different NORSAR software types and modelling approaches > Case example for IRAY modelling (fast-track pre-study in comparison with illumination maps) > Module 1: General project organization > Module 2: Pre-processing of interfaces > Module 3: Model structure and blocking > Module 4: Physical properties > Module 5: Ray tracing parameters and ray codes > Module 6: Generating iso-surfaces from velocity cubes > Module 7: Attenuation and anisotropy (TTI for P- and S-waves) > Module 8: 3D models from 2D lines > Module 9: Kirchhoff pre-stack modelling and migration > In contrast to the NORSAR-3D introductory course, there are no click-by-click instructions for each working step. Since it is assumed that the user already knows the right tools (or at least knows the structure of NORSAR-3D well enough to find them easily), instructions focus on a suggested work flow with additional tips and tricks. > In general, there is no unique sample solution to the tasks presented here. The "best" filter, model, or approach always depends on the characteristics of the data at hand and on the primary questions the modeling is supposed to answer. Alternative ways of using NORSAR-3D are in most cases possible and can optionally be discussed with course instructor and other course attendees. A final project with one possible sample solution is provided on the course, as well as a course manual and course data. - [SeisRoX Introduction Course](https://www.norsarinnovation.com/training/seisrox-introduction-course-article250-1078.html) > Duration: 2 Days > **Who should attend** > The course gives an introduction to the SeisRoX software package and is suitable for geophysicists, geologists and reservoir engineers working with or interested in seismic reservoir characterization or 4D data analysis. > **Course outline** > The course will give an introduction to the concept and technology behind SeisRoX. It will include the overburden/survey consistent seismic modelling using the patented SimPLI approach, as well as highlighting the interaction with the NORSAR-3D seismic ray modelling package. This exercise based course will guide the attendees through the major steps of a SeisRoX seismic modelling project, covering: > A brief tour through a full project as well as display and workflow options > Starting from scratch: Defining a modelling project > Data loading, including wells, interfaces, Eclipse simulations etc. > Data viewing > Well log data analysis > Rock physics analysis, including calibration of rock physics models by well log data > Target model preparations > Overburden model preparation > Survey definitions > Setting up workflows for seismic resolution analysis, survey analysis, 4D analysis, etc. > Analysis of modelled results > A course manual will be used during the course. Each participant will receive a copy of the manual and the course data. ## [Search](https://www.norsarinnovation.com/search/category1080.html) ## [Resources](https://www.norsarinnovation.com/resources/) > NORSAR Innovation software solutions are used for a wide range of applications to reduce risk, and optimize efficiency in all facets of seismic operations, and we encourage you to have a look at a collection of key papers, case studies, videos, and contributions from both our commercial and academic users. For a more hands on experience please have a look at our webinar series and sign up for an exclusive webinar suited your needs. ### [Research](https://www.norsarinnovation.com/research/) > NORSAR is very proud to be partnered with universities and research institutions all over the world. NORSAR aims to continue to build upon the relationships we have with the academic community and promote exciting research projects supported by our software. ### [Webinars](https://www.norsarinnovation.com/webinars/) > For a hands on experience please have a look at our webinar series and sign up for an exclusive webinar suited your needs. - [Thank you!](https://www.norsarinnovation.com/webinars/thank-you): Thank you for your interest in NORSAR Innovation webinars. > Your interest has been registered. We will contact you shortly with more information. ### [Videos](https://www.norsarinnovation.com/videos/) > We are constantly looking at ways to assist the NORSAR community, and our collection of videos is no different. Below is a selection of some of our newest videos addressing key aspects of the NORSAR Software Suite. ### [Case Studies](https://www.norsarinnovation.com/resources/case-studies/) > NORSAR is constantly looking at how we can best apply our technologies in response to the constant advancements made in the industry. ## [Free trial](https://www.norsarinnovation.com/free-trial/) - [Free Evaluation](https://www.norsarinnovation.com/free-trial/free-evaluation-1): Thank you for your interest in NORSAR software products. > We will send you info on how to obtain the requested evaluation as soon as possible. If you do not receive any information about your request, please send an e-mail to sales@norsar.com mailto:sales@norsar.com. ## [Latest news](https://www.norsarinnovation.com/latest-news/category1161.html) - [NORSAR at SEG 2019 in San Antonio](https://www.norsarinnovation.com/latest-news/norsar-at-seg-2019-in-san-antonio-article2985-1161.html): NORSAR will be present at the 89th SEG Conference & Exhibition 2019 in San Antonio > ![SEG 2019](https://www.norsarinnovation.com/getfile.php/138512-1568272021/norsar.no/InFocus/seg2019.jpg%20%28content_full_width%29.jpg ) > Meet researchers, technical specialists and software developers at our booth #2347 for informal discussions, presentations and software demonstrations. > Ask us for a personal presentation or a software demonstration. > We look forward to seeing you in San Antonio! - [NORSAR at EAGE 2019 in London](https://www.norsarinnovation.com/latest-news/norsar-at-eage-2019-in-london-article2986-1161.html): NORSAR will be present at the 81st EAGE Conference & Exhibition 2019 in London > ![EAGE 2019](https://www.norsarinnovation.com/getfile.php/137938-1559031479/norsar.no/InFocus/eage2019_bwide.jpg%20%28content_full_width%29.jpg ) > Meet researchers, technical specialists and software developers at our booth #421 for informal discussions, presentations and software demonstrations. > Ask us for a personal presentation or a software demonstration. > We look forward to seeing you in London! - [NORSAR Software Suite 2018 is released](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2018-is-released-article3019-1161.html): NORSAR Software Suite is a common framework for NORSAR software and consists currently of NORSAR-3D, SeisRoX and MDesign. > ![Software](https://www.norsarinnovation.com/getfile.php/132379-1579607982/norsar.no/Software/software-banner.jpg%20%28content%29.jpg ) > NORSAR Software Suite 2018 features now the option to investigate histograms and include polygon filters in Illumination maps. In addition, a normalized simulated migration map can now be generated. Furthermore, a new survey generator was added, to facilitate the generation of receiver grid surveys. > The upgrade of the Illumination functions in version 2018 allow to include or exclude areas in the survey or target domain, defined by arbitrary polygons. This new functionality allows the user to even better adapt to given limitations, such as areas without shot/receiver coverage. > #noaccess > #noaccess - [NORSAR Software Suite 2020 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2020-is-released-article3020-1161.html): This version introduces functions as DAS VSP seismograms, diving wave attribute maps and updates to the 2D modelling tools. > While NORSAR Software Suite 2019 was finishing a first long step towards a full integration of the classic NORSAR-2D ray modelling tool into a user-friendly new framework supporting both Linux and Windows, 2D model building in **NORSAR Software Suite 2020** is now supplemented by advanced 2-point ray tracing and seismogram generation. > 2D model building and 2D ray tracing are carried out within the same tool and using the same display, allowing for smooth model modifications and modelling updates. 2D models can be displayed in the 3D viewer and expanded into 2.5D models by a single mouse-click, making them accessible for wavefront propagation inside NORSAR-3D. 2D models can be made from scratch or from imported data, as well as from interface picks as stored by an on-board digitizing tool that also reads bitmap images. > **NORSAR-3D** is extended with support for fiber-optic cable DAS technology. DAS VSP modelling is a new functionality within VSP modelling. DAS enables VSP acquisition in a broad variety of wells including injection and production wells and it is a new cost-effective technology for seismic imaging and frequent monitoring. > The Illumination maps can be generated both for primary reflections and direct arrivals (or any other wavefield), in both target and survey domain. A filter can be specified in terms of the incident angle to the DAS fiber. Knowing the cable response, the maps can be filtered accordingly. > The 2020 version of NORSAR Software Suite provides synthetics for DAS VSP survey, i.e., taking the incident angle to the cable into account. For a straight fiber-optic cable, the amplitude scaling factor for P wave is *cos 2θ* while for S waves the amplitude scaling factor is *sin 2θ*. > **Diving wave attribute map** > NORSAR Software Suite 2020 provides diving waves attribute maps. Maximum depth of diving waves for any shot-receiver pair can be retrieved from modelling results. These results can be mapped into an Illumination map in Survey domain, using the shot and receiver coordinates. > **Triple source survey** > The initial flip-flop shooting option for towed streamer surveys was upgraded to flip-flop-flam shooting, optionally using a triple source. - [NORSAR at SPG 2020 in India](https://www.norsarinnovation.com/latest-news/norsar-at-spg-2020-in-india-article3022-1161.html): NORSAR Innovation participated at SPG 2020 at Kochi in India in February > The conference focused on all aspects related to petroleum E&P, conventional, unconventional as well as renewable energy sources and will provide an appropriate platform to geoscience professionals to discuss and get acquainted with recent advancements in concepts and technologies. > It was great to spend time with our excellent partner in India; Samit! - [How well can machine learning algorithms predict geology?](https://www.norsarinnovation.com/latest-news/how-well-can-machine-learning-algorithms-predict-geology-article3094-1161.html): Use seismic modelling to find out! > In cooperation with RagnaRock Geo, NORSAR/NIAS developed a workflow to use ray-based synthetic pre-stack data as input to machine learning (ML) process in order to predict geological structure. > This has two main advantages one is the fact that we can easily generate a set of training data for the ML process. For that purpose, we are using a PSDM simulator that acts as a 3D pre-stack depth convolution method. The method is called simulated pre-stack local imaging (SimPLI) (Norway patent 322089, U.S. patent granted). > Furthermore, the knowledge of the geological structure shape and position allows to examine the accuracy of the predictions and investigate the factors that influence the prediction quality in a systematic and structural manner. > Combining state-of-the-art ray modelling method with deep learning techniques supporting seismic interpretation will be the next level to enhance interpretation quality and consequently minimize the risk of interpretation errors and drilling failures. - [NORSAR Software Suite 2021 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2021-is-released-article3607-1161.html): NORSAR Software Suite 2021 is a major new release featuring new tools and several improvements and bug fixes. > ![NORSAR Software Suite 2021](https://www.norsarinnovation.com/getfile.php/1311245-1612777936/norsarinnovation.com/LatestNews/NSS2021/nss2021_2.jpg%20%28content_full_width%29.webp ) > Today, NORSAR Innovation unveils the next iteration of the NORSAR software suite delivering meaningful value to our community by transforming workflows in all facets of seismic operations. By continuing to innovate in our software suite, extending into segments such as risk analysis, and developing technologies such as DAS, NORSAR not only improves upon the already best of class tools we are known for, but add functionality to expand applications for our clients. > **NORSAR cost benefit tool ** > The new cost benefit analysis tool is designed to easily rate various survey options against each other and provide an easy-to-read overview chart. In this first version, the rating is based on simple key parameters that are fully controlled by the user, defining “cost” as related to the number of required shots and “benefit” as a threshold-based evaluation of modelled attribute maps. Target polygons can be used for generating different cases for different key areas of interest. > **Interactive Shot Direction Tracer** > The interactive Shot Direction Tracer allows for an intuitive and efficient ray path analysis in complex models, providing options for shooting fans, cones or bundles of rays from selected shot locations and varying departing angle and azimuth ranges interactively. Ray codes and ray density are fully user controlled, beneficial for defining appropriate modelling parameters, explaining variations in illumination, indicating geometric spreading or local ray path anomalies, and detecting potential model issues early in the process. > **New tools** > **NORSAR-2D** > A new Interactive Event Handler: Newly integrated cross-plotting tool supporting advanced attribute analysis and interactive re-tracing of events. > Fully extended ray code generator now allowing for modelling any part of the wavefield as known for the classic NORSAR-2D application. Multiples, phase conversions and ghosts can be defined by a mouse-click directly from a model display. > **NORSAR-3D** > A new Cost Benefit function tool is introduced. > A new integrated Shot direction ray tracer is now supported in NORSAR-3D > **MDesign ** > New functionality for simulation of DAS helical fibre > **Bug fixes and improvements** > **General** > Important upgrades have been done to the underlying graphic system to secure performance, compatibility, and security. The new NSS version is now supported on the following systems: > Windows 10 > Centos 7 or higher, Red Hat Enterprise Linux 7 or higher > **NORSAR-3D** > General Model Builder: > Clip grid surfaces when loading to fit the model box. > Clip triangular mesh surfaces when loading to fit the model box. > Clip property cubes when loading to fit the model box. > Material properties (Vp,Vs,Rho,…) in cross section plots are now computed by means of splines functions. This shows material properties exactly as they are used in the wavefront tracers. > 2D material property function (single inline or crossline) is expanded into a 3D cube when loaded into the model builder. > The function ‘Cut two interfaces against each other’ shows progress bar and can be cancelled during the process. > **Availability** > Updates to the NORSAR Software Suite is now available to all annual maintenance subscribers, including research and educational institutions, government agencies, and enterprises. The NORSAR Suite is available for download from the NORSAR web site www.norsarinnovation.com https://www.norsarinnovation.com > **About the NORSAR software suite** > The core application for NORSAR seismic modelling packages are 2D and 3D seismic ray modelling, survey planning, PSDM simulation, reservoir analysis and time-to-depth conversion based on ray tracing. The NORSAR software solutions contain a number of unique concepts compared to other systems on the market: > **About NORSAR** > NORSAR Innovation AS, a wholly owned subsidiary of the research foundation NORSAR, specializes in seismic modelling software and services for the E&P industry. > We offer a unique ray tracing solution that has been used by leading E&P companies world-wide for more than 20 years. - [NORSAR Software Suite 2021.2 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2021-2-is-released-article3920-1161.html): NORSAR continues to innovate and develop the NORSAR Software Suite. We are dedicated in providing the best tools available, following the ever-changing advances in the industry. > **This new version introduces new tools including an Illumination Cubes workflow, Workflow Queue System, 3D model generation from 2D models, and new functionality of extracting 2D models from 3D.** Illumination Cubes workflow > NORSAR Software Suite 2021.2 Now includes a new NORSAR-3D workflow, the Illumination Cubes workflow can be used e. g. as a survey planning device in connection with surveys intended for inversion projects (tomography, FWI etc.). The workflow performs ray tracing through the model, and maps the ray paths to a regular 3D cell grid in space. Several ray attributes can be mapped to get a picture of to what extent various parts of the model have been penetrated (illuminated) by the rays, and what ray directions are represented. The results of the process are a number of cubes, one for each ray attribute. > Workflow Queue System > NORSAR Software Suite now also includes a new Workflow Queue System, a tool designed to efficiently run several modelling jobs in batch mode. It allows adding existing workflows into a queue system to efficiently complete projects. Several batch wavefront tracer setups, or several different illumination maps can be scheduled to run one after another. The results are available for analysis as soon as the workflow has finished. > 2D model from 3D model > The new NSS version provides updated functions for 2D model building. A 2D model can now be extracted from a 3D model along a 2D New General Section within the NSS project (in addition to a 2D model along an Inline/Crossline Section). The general (random) section is along a selected NSS polyline. NSS 2D modelling allows for a user-friendly, and efficient ray-path and event analysis, even in the most complex models. 2D models can be displayed in the 3D Viewer and expanded into 2.5D models. > 3D model from 2D models > A new tool to create a 3D models from a set of 2D models is also now included in the suite. The 3D model is built by interpolating between the 2D models, and allows for efficiently utilizing both 2D and 3D ray tracing. The selected models may be inlines or crosslines, a combination of both, or even general sections. However, all selected models must have the same number of surfaces. - [NORSAR Software Suite 2021.3 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2021-3-is-released-article4122-1161.html): 25 years of research and development has culminated in this new version of the NORSAR Software Suite providing further functionality and bug fixes to the acclaimed modelling tool. > ![NSS 20213](https://www.norsarinnovation.com/getfile.php/1313193-1640099999/norsarinnovation.com/Images/nss2021_3.jpg%20%28content_full_width%29.webp ) > **Constantly interacting with our software and services clients, we aim to continue to deliver the best, most efficient modelling tools available, following the ever-changing advances in the industry.** > This new version enhances the tools available in the NORSAR Software Suite and further promotes ease of use through developments in import and export functionality, the model builder, Kirchhoff modelling, and updates to the native workflows. > **NORSAR-2D** > Model Builder > Fixed missing sample at the end of plotted horizons. > Fixed wrong units in the Background Image Mapping window for a time model. > Fixed a missing update when a one-sample horizon was deleted. > Improved error message on blocking. > **NORSAR-3D** > Data import/export > Fixed that grid import did not handle files larger than 2 GB. > Improved help on the symmetry axis import (SEG-Y cubes with azimuth and dip). > Export of polylines is introduced. > SEG-Y property cube export: > Header info can now not be edited, as it is only for info. > Manual setting of the z-sampling field in the SEG-Y header is only requested when needed. > The displayed size and sampling are always matching with the units. > Improved help. > SEG-Y property cube import: > The displayed size and sampling are always matching with the units. > Model Builder > Fixed smoothing issue of large property cubes on Linux. > Grid Layer Cake Model Builder: > Improved handling of ‘zero-thickness’ layers (partially coincident interfaces). None or much smaller glitches between the interfaces where they intersect. > General Model Builder: > New interface edit function: Merge, Smooth, and Resample. > From 2D model to 2.5D model and from Many 2D models to 3D models: > Max allowed number of samples in the 2D general line definition is increased to 10000. > Workflows > Fixed crash in the Seismogram Generator workflow when trying to plot shot dependent working box. > Introduced a new parameter: ‘Wavefront Analysis Level’ in the WF tracing advanced parameters. > Introduced a message in the Batch Monitor window if some parts of the initial disc have been stopped during the wavefront propagation. > Improved distribution of shots among the jobs in the Batch Wavefront Tracer. > Fixed ‘Restore Defaults’ option in the Advanced Tracing Parameters window. > Kirchhoff modelling > Filter attributes in Advanced Greens Function Parameters setup: Preserve Max Offset values along local X/Y-axis. > Improved reuse of existing Greens functions. > **SeisRoX** > 3D Viewer > Fixed crash when displaying reflectivity in a reservoir model without elastic properties. > **General** > Minor stability fixes and improvements. - [NORSAR Software Suite 2022 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2022-is-released-article4260-1161.html): NORSAR has now released the 2022 version of the acclaimed NORSAR Software Suite, further enhancing the modelling tools already known as best in class. > ![NSS 2022](https://www.norsarinnovation.com/getfile.php/1314034-1646908176/norsarinnovation.com/Images/news_release_2022.png%20%28content_full_width%29.png ) > **In addition we have made steps to further enhance the stability of the software, used by industry leaders for more than 20 years.** > Through constant interaction with our software and services clients, we aim to continue to deliver the best, most efficient modelling tools available, following the extraordinary advances we see in the industry. > **To learn more about the NORSAR software suite and this new release, please read the release notes https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2022-2022-0-44371-march-8-2022 and do not hesitate to contact us at sales@norsar.com mailto:sales@norsar.com** - [NORSAR Software Suite 2022.1 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2022-1-is-released-article4353-1161.html): NORSAR has now released the 2022.1 version of the acclaimed NORSAR Software Suite, enhancing the tool known as the best in class ray based modelling software. > ![NSS 2022.1](https://www.norsarinnovation.com/getfile.php/1314719-1656590727/norsarinnovation.com/LatestNews/NSS2022_1/NORSAR_Release_2022.1_2088.jpg%20%28content_full_width%29.webp ) > **This release focused on furthering the stability of the software, used by industry leaders for more than 20 years.** > Through constant interaction with our software and services clients, we aim to continue to deliver the best, most efficient modelling tools available, following the extraordinary advances we see in the industry. > **To learn more about the NORSAR software suite and this new release, please read the release notes https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2022-1-2022-1-44501-june-28-2022 and do not hesitate to contact us at sales@norsar.com mailto:sales@norsar.com** - [NORSAR Software Suite 2023 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2023-is-released-article4523-1161.html): NORSAR has now released the 2023 version of the acclaimed NORSAR Software Suite, providing further functionality and improvements to the acclaimed modelling tool. > ![NORSAR Software Suite 2023](https://www.norsarinnovation.com/getfile.php/1315411-1671703278/norsarinnovation.com/LatestNews/nss_2023_news.jpg%20%28content_full_width%29.webp ) > **NORSAR Software Suite 2023** is a new major release featuring new functionalities, improvements, and bug fixes. Highlights of the release are a new 3D Point Spread Function workflow, MDesign export functions, a 2D lateral property gradients function and a new dark user interface style. > Through constant interaction with our software and services clients, we aim to continue to deliver the best, most efficient modelling tools available, following the extraordinary advances we see in the industry. > **New dark user interface style** > **To learn more about the NORSAR software suite and this new release, please read the release notes https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2023-2023-0-44795-december-22-2022 and do not hesitate to contact us at sales@norsar.com mailto:sales@norsar.com** - [NORSAR Software Suite 2024 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2024-is-released-article5853-1161.html): NORSAR has now released the 2024 version of the acclaimed NORSAR Software Suite, providing further functionality and improvements to the modelling tool. > ![NORSAR Software Suite 2023](https://www.norsarinnovation.com/getfile.php/1320985-1719308237/norsarinnovation.com/LatestNews/nss_2024_news.png%20%28content_full_width%29.webp ) > **NORSAR Software Suite 2024** is a new major release featuring new functionalities, improvements, and bug fixes. Highlights of the release include a new Bin size estimation workflow, Shot and receiver domain filtering of Illumination Rays, an Orthogonal survey generator, and options for Scientific color scales. > Through constant interaction with our software and services clients, we aim to continue to deliver the best, most efficient modelling tools available, following the extraordinary advances we see in the industry. > **Max Bin Size estimation. Coloring with scientific scales.** > **To learn more about the NORSAR software suite and this new release, please read the release notes https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2024-2024-0-0-july-2-2024 and do not hesitate to contact us at sales@norsar.com mailto:sales@norsar.com** - [New case studies](https://www.norsarinnovation.com/latest-news/new-case-studies-article6250-1161.html): We’ve updated our case studies page with new case studies that highlight some of our recent work. > ![Case Study](https://www.norsarinnovation.com/getfile.php/1322558-1737633854/norsarinnovation.com/LatestNews/case_study_b.jpg%20%28content_full_width%29.webp ) > These case studies provide insight into the solutions we’ve delivered and the challenges we’ve tackled. > The new case studies are: > **Event Analysis** – The value behind classic ray tracing approaches > **2D Lines in a 3D World** – Illumination and migration effects > **De-risking Projects** – Different applications of ray-based seismic modelling > Feel free to check out these case studies https://www.norsarinnovation.com/resources/case-studies/case-studies to learn more about what we do and how we can help. - [NORSAR Software Suite 2025 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2025-is-released-article6342-1161.html): NORSAR has now released the 2025 version of the acclaimed NORSAR Software Suite, providing further functionality and improvements to the modelling tool. > **NORSAR Software Suite 2025** is a major system upgrade designed to ensure long-term stability, improved performance, and future-ready compatibility. This release brings the entire platform up to date with modern software libraries, including Python 3.11, Qt 6.8, and VTK 9.3, while also updating core components like Boost, HDF5, and Zlib. Whether you're running on Windows or Linux, you'll benefit from refreshed and more robust software. > In addition to technical upgrades, key improvements have been made in core workflows. Seismogram generation now correctly handles DAS amplitudes as strain, anisotropy is now supported in SeisRoX, and reflection angle calculations have been significantly enhanced in the IRAY and Flower Plot tools. Numerous stability and performance fixes ensure smoother experiences across modeling, visualization, and illumination workflows. > This release is ideal for both existing users looking to modernize their environment and new customers who want a powerful, reliable platform built on up-to-date technologies. NSS 2025.0 lays the foundation for future innovation while addressing long-standing issues that enhance the reliability and accuracy of your results. > Now is the perfect time to upgrade—unlock better performance, improved modeling accuracy, and a more stable, future-proof NORSAR Software Suite. > See the release notes https://www.norsarinnovation.com/support/release-notes/norsar-software-suite-2025-2025-0-0-may-20-2025 for more information. - [NORSAR at EAGE 2025 in Toulouse](https://www.norsarinnovation.com/latest-news/norsar-at-eage-2025-in-toulouse-article6352-1161.html): NORSAR will be present at the 86th EAGE Conference & Exhibition 2025 in Toulouse > ![EAGE 2025](https://www.norsarinnovation.com/getfile.php/1323255-1748271816/norsarinnovation.com/billboard/eage_2025_billboard.jpg%20%28content_full_width%29.webp ) > Meet researchers and technical specialists at our booth #1215 for informal discussions, presentations and software demonstrations. > Ask us for a personal presentation or a software demonstration. > We look forward to seeing you in Toulouse! - [NORSAR at IMAGE 2025 in Houston](https://www.norsarinnovation.com/latest-news/norsar-at-image-2025-in-houston-article6403-1161.html): NORSAR will be present at the IMAGE Conference & Exhibition 2025 in Houston > ![IMAGE 2025](https://www.norsarinnovation.com/getfile.php/1323479-1755779214/norsarinnovation.com/billboard/image_logo.jpg%20%28content_full_width%29.webp ) > Join us at IMAGE 2025 in Houston next week! > Visit our booth #1882 to learn about our renowned ray tracing modelling tools for survey planning and illumination studies and not at least our new passive seismic monitoring tool PasMon! https://www.norsarinnovation.com/getfile.php/1323481-1755779454/norsarinnovation.com/Images/IMAGE-Schedule-Web-2025-v1.png - [NORSAR Software Suite 2025.1 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2025-1-is-released-article6468-1161.html): NORSAR has now released the 2025.1 version of the acclaimed NORSAR Software Suite, providing further functionality and improvements to the modelling tool. > **NORSAR Software Suite 2025.1** is a focused maintenance release that boosts stability across the platform and sharpens day-to-day productivity. The headline improvement strengthens **MDesign Detectability and Location Uncertainty** with enhanced **amplitude computations for complex models**—delivering more reliable study results when your geology and acquisition scenarios get challenging. What’s in 2025.1 > **Stronger modelling confidence in MDesign** > Detectability and location-uncertainty analyses now handle complex models more robustly thanks to improved amplitude computations. > **A raft of quality fixes** > We’ve tightened plotting behavior, export accuracy, workflow resilience, and in-app guidance to keep your projects moving without surprises. Reliability & quality improvements (highlights) > **Plotting & visualization** > Point-based survey domain illumination maps now render correctly. > Imported microseismic points with a specified noise floor are plotted as expected. > Deadlock in General Model Builder surface plotting resolved. > Clear warnings if too many PSFs are stored in MDesign Focusing workflows. > **Exports & data integrity** > Fixed crash when exporting SeisRoX results to SEG-Y. > Corrected floating-point precision for **z-axis** in SEGY output. > Proper scaling of **anisotropy parameters** when exporting as SEGY. > More robust **time-to-depth mapping** when the time grid extends beyond the cube. > **Workflow robustness** > Detectability workflow no longer fails with sensor sets that share non-unique names. > Increased default spacing for **NIP surveys** to prevent resource issues. > **UI, units & guidance** > New in-app help for the **Units** tab during project creation, and for the **SeisRoX PSF** workflow. > Resolved unit/legend inconsistencies across: property cubes and NORSAR-3D models, Single Block/Single Reflector model builders, Survey Generator, Flower Plot setup, **N2D** survey definition, and **NIP** survey area widget. > Added a **“Night”** UI style for comfortable low-light work. > **Available now.** Update to 2025.1 to benefit from a more resilient toolchain and improved modelling accuracy—so you can focus on interpretation, not workarounds. - [NORSAR Software Suite 2026 is released!](https://www.norsarinnovation.com/latest-news/norsar-software-suite-2026-is-released-article6714-1161.html): NORSAR Software Suite 2026 is released: Expanded Modelling Capabilities, DAS Support, and Improved Workflow Reliability > ![NORSAR Software Suite 2026](https://www.norsarinnovation.com/getfile.php/1326034-1777374657/norsarinnovation.com/LatestNews/nss2026_start2.png%20%28content_full_width%29.webp ) > NORSAR Software Suite 2026: Expanded Modelling Capabilities, DAS Support, Improved Workflow Reliability and brand new product PasMon > **27 April 2026** > We are pleased to announce a new release of the NORSAR Software Suite, introducing important updates across **MDesign**, **NORSAR-3D**, and **NSS**. This release strengthens support for modern acquisition technologies, improves the handling of complex subsurface models, and delivers a broad set of workflow enhancements and bug fixes. > A key focus of this release is to give users more flexibility and confidence when working with increasingly advanced modelling and survey scenarios. The updates include new functionality for Distributed Acoustic Sensing, DAS, improved handling of geophone directivity, an extended General Model Builder in NORSAR-3D, and several improvements related to topographic surfaces, coordinate transformations, model conversion, and visualization. Enhanced detectability workflows in MDesign > MDesign has been updated with new capabilities that make detectability and uncertainty analysis more representative of real acquisition conditions. > The detectability and location uncertainty workflows can now account for the directivity of single-component geophones. This allows users to include the directional response of these sensors in their analysis, supporting more realistic evaluations of survey performance and monitoring capability. > In addition, MDesign now includes support for DAS in the detectability workflow. This expands the range of acquisition technologies that can be evaluated and helps users assess detectability for projects where fiber-optic sensing is part of the survey design or monitoring strategy. > Together, these improvements make MDesign more useful for evaluating both conventional and emerging acquisition approaches. Extended General Model Builder in NORSAR-3D > The major update in NORSAR-3D is an extension of the General Model Builder. The tool is now available in two versions: **Basic** and **Advanced**. > The **Basic version** corresponds to the General Model Builder known from previous releases. It keeps the familiar functionality and workflow for users who need standard model-building capabilities. > The new **Advanced version** introduces a hierarchical structure for Interface, Horizon, and Block relationships. This makes it possible to build, organize, and store model elements in a more flexible way. The Advanced version is designed for users working with more complex geological models and modelling scenarios than those that can be handled efficiently in the Basic version. > This development gives users more control over model construction and provides a stronger foundation for handling complex subsurface structures within NORSAR-3D. Broad improvements and bug fixes in NORSAR Software Suite > The release also includes numerous improvements and bug fixes in NSS, aimed at improving usability, reliability, and support for important workflows. > The interactive wavefront tracer now has improved handling of surveys created from SPS files. The conversion from 2D models to 2.5D models has also been fixed for cases with non-constant material properties. > Several updates have been made to the General Model Builder. The **Smooth and Resample** function now works for a single interface, not only when interfaces are merged. This provides more flexibility when preparing and refining model elements. > Workflows involving topographic surfaces have also been improved. The survey-dependent illumination ray workflow now works with topographic surfaces, and the CMP bin size tool has been fixed for these surfaces as well. > In addition, bugs related to coordinate transformation and unit conversion have been resolved, and several color map issues have been fixed. PasMon > NORSAR introduces **PasMon**, a new cutting edge software solution for advanced real-time passive seismic monitoring. > **PasMon **represents a significant step forward, harnessing NORSAR’s deep expertise in seismology and integrating advanced modern analysis methods. > **PasMon **provides critical insight into subsurface dynamics and supports informed decision-making in demanding operational environments. A stronger and more flexible software suite > With this release, the NORSAR Software Suite continues to evolve in line with the needs of advanced seismic modelling, survey planning, and monitoring applications. > The combination of DAS support, improved geophone directivity handling, more powerful model-building tools, and a broad set of workflow improvements gives users a stronger platform for working with complex models and acquisition scenarios. > These updates are intended to help users improve analysis quality, streamline daily workflows, and increase confidence in modelling and survey design results. - [NORSAR at EAGE 2026 in Aberdeen](https://www.norsarinnovation.com/latest-news/norsar-at-eage-2026-in-aberdeen-article6745-1161.html): NORSAR will be present at the 87th EAGE Conference & Exhibition 2026 in Aberdeen > ![EAGE 2026](https://www.norsarinnovation.com/getfile.php/1326244-1779441971/norsarinnovation.com/LatestNews/ABN26_BG-landscape-%2B-date-%5BRGB%5D.png%20%28content_full_width%29.webp ) > Meet researchers and technical specialists at our booth #A325 for informal discussions, presentations and software demonstrations. > Ask us for a personal presentation or a software demonstration. > We look forward to seeing you in Aberdeen! > Presentations > **Short introduction to NORSAR Software Suite 2026** > https://www.norsarinnovation.com/getfile.php/1326315-1780659206/norsarinnovation.com/CaseStudies/NSS_short_2026.pdf > **Demonstration of the new model builder** > **Understanding and improving illumination at Block AC/RL6 (Timor Sea, Audacious)** > https://www.norsarinnovation.com/getfile.php/1326318-1780659236/norsarinnovation.com/CaseStudies/NORSAR_CaseStudy_TimorSea_Engenius2.pdf > **CCS case study based on the Sleipner field** > https://www.norsarinnovation.com/getfile.php/1326321-1780659260/norsarinnovation.com/CaseStudies/NORSAR_CaseStudy_CCS.pdf > **Microseismic network design with MDesign** > https://www.norsarinnovation.com/getfile.php/1326324-1780659296/norsarinnovation.com/CaseStudies/MDesignGroningen.pdf > **Introducing real-time passive seismic monitoring with PasMon (NEW)** > https://www.norsarinnovation.com/getfile.php/1326327-1780659354/norsarinnovation.com/CaseStudies/PasMon_Overview_2026.pdf - [NORSAR at IMAGE 2026 in Houston](https://www.norsarinnovation.com/latest-news/norsar-at-image-2026-in-houston-article6846-1161.html): NORSAR will be present at IMAGE '26 in Houston > ![IMAGE 26](https://www.norsarinnovation.com/getfile.php/1327792-1786712924/norsarinnovation.com/LatestNews/Invitation%20Breakfast%20IMAGE%202026.png%20%28content_full_width%29.webp ) > Meet researchers and technical specialists for informal discussions and software demonstrations and join our Seismic Software Solutions Breakfast https://forms.cloud.microsoft/pages/responsepage.aspx?id=y6eJNVKqU0-w9F0LqmOTiPYpRTZquhpLuj9EIw1wRxlUN05IVko5M1JVQjRTV0dUNkFaNklWTExTNy4u&route=shorturl arranged with our partners OptiSeis https://optiseis.com/ and Engenius https://www.survopt.com/about-us/. > Ask us for a personal presentation or a software demonstration. > We look forward to seeing you in Houston! ## [Extranet](https://www.norsarinnovation.com/extranet/category1268.html) ## [About us](https://www.norsarinnovation.com/about-us/) > NORSAR Innovation AS, a wholly owned subsidiary of the research foundation NORSAR, specializes in seismic modelling software and services for the E&P industry. ## [Contact us](https://www.norsarinnovation.com/contact-us/) - [Software Sales Contacts](https://www.norsarinnovation.com/contact-us/software-sales-contacts) > NORSAR Innovation Representatives Europe > **NORSAR Head Office** > Gunnar Randers vei 15 > P.O.Box 53, 2027 Kjeller > NORWAY > Phone: +47 63 80 59 00 North and Central America > **NORSAR Innovation's Representative in North and Central America** > Graham Johnson > Houston, Texas > USA > Phone: (+1) 281 497 5511 > Cell phone: (+1) 281 804 9958 > E-mail: graham.johnson@norsar.com South America > Brazil > **les Brazil Consultoria e Servicos** > Carlos Eiffel Arbex Belem > Brazil > Phone: + 55 (21)2262 9651 > E-mail: carlos.belem@norsar.com.br Russia > Geophysengineering > Moskow > Russia India, Bangladesh > **Samit Spectrum EIT Pvt. Ltd.** > Gurgaon, Haryana > India > Phone +91 124 4356000 > Fax +91 124 4356099 > E-mail: info@samit.in > Web: www.samit.in http://www.samit.in Malaysia > **EP Group** > EP Engineering Sdn. Bhd. (271041-A) > KL Office: Unit 203, 205 & 206, 2nd Floor, > Wisma TKT, 2/4, Jalan Dang Wangi, 50100 Kuala Lumpur > T +603 2693 2255 ext 228 | F +603 2693 7550 | M +6019 273 5345 > Email: firdaus.alias@kul.epintl.com > Website: www.epintl.com http://www.epintl.com China > **APEX Solutions Inc.** > Suite 440, Richmond 10333 > Houston > TX 77042 > United States of America > Website www.apexapex.com http://www.apexapex.com Australia, New Zealand > Perseus Consulting > Graeme Eastwood > Perth > Australia South Korea > **UIT Inc.** > Seoul > Korea > Phone: 82-2-2051-2305 > Fax: 82-2-2051-2306 > Email: steve.kim@uitsolutions.com > Web: www.uitsolutions.com http://www.uitsolutions.com - [Distributors](https://www.norsarinnovation.com/contact-us/distributors) > NORSAR Innovation World-wide Petroleum Geo-Services > Oslo, Norway > Website: www.pgs.com http://www.pgs.com ION Geophysical > Houston US > Website: iongeo.com http://iongeo.com ## [NORSAR](https://www.norsar.no) ## [Product details](https://www.norsarinnovation.com/product-details/) ### [Plug-ins for Petrel](https://www.norsarinnovation.com/products/plug-ins-for-petrel/) > NORSAR software is integrated with Petrel via the Ocean Framework.