Deep water pre-processing: East Coast India

摘要

The transition from shelf to deep water environments brings several specific challenges to the processing geophysicist. Out of plane scattered multiples hamper imaging of the deeper section, whilst 0ear seabed gas hydrate accumulations and channel-fill velocity anomalies cause distortions in images if these punctual velocity features are not correctly incorporated into the velocity model for depth migration (time imaging is an insufficient solution in these cases).