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22-06-2017
Our booth at the 79th Conference & Exhibition EAGE (photo report)
June 12-15, 2017
Paris, France

 


17-11-2016
Important information!
At this time, all new technology implementation, seismic data processing and interpretation projects are being operated by NPP Spetsgeofizika, founded in 2007. GDS retains its role as a petroleum geology consultancy and purveyor of innovative technologies.


08-06-2016
Our booth at the 78th Conference & Exhibition EAGE (photo report)
May 30 — June 2, 2016
Vienna, Austria

78th Conference & Exhibition EAGE


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    AViSeis® ®    
IST-3MP — static correction interactive technology ® SeisWin — field QC ® GDS-I — vibrator control geophysical digital system ®

IST-3MP ® 2.3 new release

Dear IST-3MP ® users!

Geophysical Data Systems Company is pleased to announce the release 2.3 of our IST-3MP ® system.

Innovations:

New 2.3 release includes first break refraction statics calculation technology, based on modified surface consistent common-source point (CSP ) and common-receiver point (CRP ) stacking technique.

The technology does not require time consuming and often erroneous fist break picking efforts during noisy shot records interpretation. Moreover, it avoids detail near-surface velocity model building process, which is also can be quite ambiguous.

The Optimized Surface Consistent Stack module generates CSP and CRP sections from gathers after linear moveout (LMO ) applied for clear first arrivals imaging. Preliminary few-points refractor velocity and offsets range analysis has to be performed on sparsely selected shot record gathers only along the line.

The optimized CSP and CRP stacking technique involves calculation and application of average time shift for each gather being stacked. This time shift relates to time delays, which are accumulated at particular moment in sliding gather along the line. Thus, source and receiver factors are automatically decoupled during the optimized stacking. First arrivals picking result obtained from stacked sections is equivalent to reduced refractor travel time curve along the line.

SCS Refractions Statics Calculation module uses first beak picks from previous step for calculation of resulting source and receiver statics, which can be exported in ASCII format from database later on.

Moreover, since the 2.2 release more than 550 fixes were introduced into the system and the following new features , modules and changes were added:

System installation

  • New version of IST-3MP on OS Windows 7 (64 bit) is released. This version enables to use all available memory on the computer.
  • Installation procedure was simplified on Windows. First installation of the system also installs hardware dongle drivers automatically.
  • Installation document was improved.

IST-3MP ® Main Window

  • New Optimized Surface Consistent Stack module was added.
  • New SCS Refraction Statics Calculation module was added. This module is used to calculate statics based on first arrival picks produced on stacks which were calculated in Optimized Surface Consistent Stack module.
  • New option to export patterns together with information about RECNO and SOURCE key words has been added.
  • Import and export of velocities in Focus format has been implemented.
  • New option for sparse import of SPS files has been added.
  • Selection of final coordinates has been improved in Static Manipulation program when combining several statics objects.
  • Buttons for hiding/showing of header words columns have been updated.
  • Spreadsheet program now includes an option to delete unused header words (Header Words->Delete).
  • Coordinate system logic was improved in Statics Manipulation program. New option to view Guiding Grid was added (Settings -> Guiding Grid).
  • Datasets now have MB3 menu option Build Indices…
  • Horizontal Semblance Calculation user interface was improved.
  • Use Interpolation option was removed from Apply Muting module. Interpolation is now applied automatically.
  • Reserve Space option has been added to Import SEG-Y window. This is used to reserve additional header words space. This improves performance when new words are created or removed in Spreadsheet, Calculate Trim Statics or Map.
  • View option has been added for Refraction Model object.
  • FK Filter module user interface has been simplified.

Map

  • New option to create polygonal anomaly region has been added.
  • New option to visualize color coded automuting zone (NMO stretch zone) when creating patterns has been added (Show NMO Automuting Bounds window).
  • Mutual update between Map and Trace Display when changing anomaly region has been implemented.
  • Hot keys in pattern mode have been updated.
  • New option to change color of anomaly region has been added.
  • Ability to open Regions, Image Overlay, Regular Grid, Contours, Block Shifts has been added to File->Load window.

Trace Display

  • New option to visualize and edit anomaly region has been added.
  • New Refraction Model editing mode has been added to Trace Display. This mode enables to extract refraction wave along selected trace ranges along seismic profile.
  • New option to be able to remove (erase ) current statics has been added. When selecting Remove option this statics is cleared and renamed to «Unnamed ».

08-04-2013, 1126 visits.