Release Notes

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.

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 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.

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