Prestack slant stack migration and its application in AVO analysis

Jen-Yang Lin

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ABSTRACT

One synthetic and one field dataset from the Gulf of Mexico were used to test a program of prestack slant stack migration with phase shift plus interpolation (PSPI). The migrated section showed a correct image with this algorithm, even with lateral velocity variations. I also took advantage of this migration to do amplitude-versus-offset (AVO) analysis on the migrated field dataset. The prestack slant stack migration collapses diffractions, and focuses bright spots, thus increasing confidence in AVO analysis.