METHOD FOR DEPTH MIGRATING SEISMIC DATA USING PRE-STACK TIME MIGRATION, DEMIGRATION, AND POST-STACK DEPTH MIGRATION

摘要

A method is disclosed for depth migrating seismic data. The method includes pre-stack time migrating the seismic data to form a stacked, time migrated image. The stacked, time migrated image is demigrated, and post-stack depth migration is then performed on the demigrated image. In some embodiments, the pre-stack time migration and the demigration account for ray bending in vertically transversely isotropic media.