A Migration Method for Limited Seismic Array Geometries - Application to Reverse VSP

B-27 A MIGRATION METHOD FOR LIMITED SEISMIC ARRAY GEOMETRIES - APPLICATION TO REVERSE VSP Summary 1 Images produced from seismic data collected with limited arrays such as downhole seismics or surface seismics with incomplete arrays tend to contain artifacts resembling migration smiles. These artifacts are often suppressed by severely limiting the migration dip aperture which can also omit dipping reflectors and detract from the quality and usefulness of the image. To maximize the imaging capabilities of such datasets a new imaging approach has been developed to compliment conventional migration methods. The new approach termed vector image isochron (VII) migration minimizes