Brazil Second Transfer of Rights Bidding Round
For prospectivity assessments in the Santos Basin
Illuminate the Sépia and Atapu presalt fields with HD seismic data to accelerate exploration and appraisal.
3D GSMP general surface multiple prediction algorithm is a full-3D true-azimuth implementation of the surface-related multiple elimination (SRME) technique. It is used for accurately predicting complex multiples, including diffracted and scattered multiple energy.
3D GSMP algorithm preserves double bounces and other complex primary events for removal with complementary techniques, such as conventional or shifted-apex Radon demultiple. This approach enables correctly migrating these events by using imaging algorithms, including reverse time migration (RTM), for the best-possible reservoir image.
Minimal preprocessing is required because interpolation, regularization, and extrapolation are conducted with the 3D GSMP prediction algorithm. To produce a high-quality multiple model, 3D GSMP algorithm realizes the multiples at true azimuth to ensure an accurate match with the multiples in the input data.
In areas where there are multiple overlapping vintages of data or large infill volumes, datasets can differ in their signal-to-noise ratio, offset distribution, and other characteristics. The 3D GSMP algorithm uses the highest-grade input data to refine modeling of multiples for multisurvey and 4D or time-lapse seismic projects.
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