Subsurface Imaging, part of CGG’s Geoscience division, has secured two large-scale seismic reprocessing contracts from PTTEP.
Over the course of the next year, CGG, through its offices in Kuala Lumpur , will conduct merged reprocessing of surveys from many vintages, including towed-streamer as well as OBC seismic data from offshore Sabah and Sarawak.
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The fast-track products should come by mid-next year and final workstation products by the end of 2021.
PTTEP expects the resulting images will improve the definition of producing reservoirs, enable enhanced planning and drilling of future wells, and open up new plays for near-field exploration at deeper intervals.
This region has a complex highly faulted subsurface where scattered gas bodies mask the target reservoir on existing data sets, CGG explains.
To unmask the gas wipeout, remove distortions at the reservoir level and image the bounding faults, CGG will apply its latest workflow including proprietary imaging technologies, such as high-frequency full-wavefield Time-Lag FWI ( HF-FWI ), Q-compensating least-squares (LS-Q) Kirchhoff PSDM and LS-Q RTM, which have been fine-tuned over many similar projects in the region.
According to CGG, these technologies will also be focused to improve imaging of the deeper exploration targets, where the objective is to improve amplitude, resolution and continuity in the mini-basins and define the steeply dipping folds underneath the main unconformity.
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about 5 years ago
Subsurface Imaging, part of CGG’s Geoscience division, has secured two large-scale seismic reprocessing contracts from PTTEP. Over the course of the next year, CGG, through its offices in Kuala Lumpur, will conduct merged reprocessing of surveys from many vintages, including towed-streamer as well a
