Over the past 10 years TGS has built up a substantial geophysical database offshore Greenland. This includes over 64,000km of 2D seismic, much of which contains multiples of primary diffractions,...
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Author: TGS
The sedimentary basins in the Baffin Sea, Davies Strait and Labrador Sea are surrounded by old continents consisting of 2.4 to 3.6 bill year Proterozoic and Archean rocks. The old continents may have...
Author: TGS
In 2009 TGS acquired 2,770 km2 of multi-client seismic data in the southwestern Barents Sea across the Hoop Fault Complex covering acreage nominated in the recent Norwegian 21st licence round. The...
Author: Abu Chowdbury
The source rock for the hydrocarbons in the Upper Jurassic, Cretaceous, and Tertiary reservoirs in the eastern Gulf of Mexico is postulated to be Upper Jurassic Smackover lime mudstone (Mancini et...
Author: TGS
A novel, de-aliased method called Stepwise Multiple Elimination using Linear Transforms (SMELT) is introduced as an alternative to 2-D Surface Related Multiple Elimination (SRME) to remove...
Author: TGS
In the implementation of TTI RTM, we meet stability problems and demands for speedup. Staggered Fourier first derivative and linear interpolation improves stability and accuracy. Areas with high...
Author: TGS
A joint contractor-company project was undertaken to evaluate the practicality and utility of shallow high resolution reprocessing of large deepwater exploration 3D seismic surveys. An approximately...
Author: TGS
In efforts to further improve final migrated images we have developed a new methodology for post-migration multiple removal in the migration depth domain. The typical input for the prediction phase...
Author: TGS
We present a case study of enhanced imaging of wideazimuth data from the Gulf of Mexico utilizing recent technologies; and we discuss the resulting improvements in image quality, especially in...
Author: TGS
A data driven 3D true azimuth surface related multiple elimination (SRME) technique can be quite effective in removing surface related multiples for both narrow azimuth (NAZ) surveys as well as wide...