Release Notes

This bugfix release resolves an issue where creating a new project would sometimes fail.

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 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 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 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 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 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 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 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 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.