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

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.

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

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.