Release Notes

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.

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 2021.1 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 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 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 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 3D 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 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

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

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

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.