Abstract

The anisotropic Pre stack depth Migration was taken up to resolve the issue of pseudo structures, especially highs, in Mukta and Bassein sequences in an area in Western offshore Basin of India. These structures, seen on Pre Stack Time Migrated stack data, were found to be non-existent on drilling. The seismic data was reprocessed for Pre Stack Time Migration, to get a realistic sub surface picture of the area but the pseudo structures, caused by velocity anomalies, could not be resolved