Patent ID: 6757217
Filing Date: 2004-06-29
Classification: G01V

Abstract:
A method for time-aligning near-offset and far-offset seismic data volumes, comprising the steps of:(a) selecting a plurality of time shifts; (b) cross-correlating the near-offset and far-offset seismic data volumes at the plurality of time shifts; (c) creating an initial time-shift volume and a maximum correlation volume from the maximal cross-correlations at the plurality of time shifts; (d) determining areas of high time shift from the initial time-shift volume and areas of low cross-correlation from the maximum correlation volume; (e) filtering the determined areas of high time shift and low cross-correlation from the initial time-shift volume, generating a filtered time-shift volume; and (f) applying the filtered time-shift volume to the far-offset seismic volume to generate a time-aligned far-offset volume.