Seismic velocity and migration determination for complex geological areas

Abstract

Common depth point data in seismic reflection surveys are now being recorded with ever increasing source-receiver offset distances. For such wide aperture seismic data the traditional methods of interpretation may fail, since velocity analyses and signal enhancement methods based on hyperbolic travel-time curves are no longer appropriate. The present paper shows, however, that even in steeply dipping environments both velocity determination and depth migration determination reduce to simple mathematical expressions. These expressions can be applied to solve complicated overburden problems.