Patent ID: 6850864
Filing Date: 2005-02-01
Classification: G01V

Abstract:
1. A method of analyzing dip in a seismic data volume, comprising: (a) obtaining a seismic data volume consisting of seismic data as a function of spatial location in a three-dimensional subsurface region, said seismic data being seismic amplitude values or seismic attributes derived from the seismic amplitudes; (b) selecting a first direction in the seismic data volume; (c) calculating a horizontal gradient of the seismic data in the first direction at a plurality of data locations in the seismic data volume; (d) calculating a vertical gradient of the seismic data at a plurality of data locations in the seismic data volume; and (e) calculating a dip in the first direction from the horizontal gradient in the first direction and the vertical gradient, to thereby create a first dip volume.