| US 7,545,704 B2 | ||
| Performing 3-D scatterer imaging from 2-D seismic data | ||
| Stewart Arthur Levin, Centennial, Colo. (US) | ||
| Assigned to Landmark Graphics Corporation, Houston, Tex. (US) | ||
| Filed on Feb. 13, 2007, as Appl. No. 11/674,526. | ||
| Prior Publication US 2008/0195321 A1, Aug. 14, 2008 | ||
| Int. Cl. G01V 1/34 (2006.01); G01V 1/30 (2006.01) | ||
| U.S. Cl. 367—72 [367/53; 367/58] | 17 Claims |
| 1. A computer readable medium storing program instructions for analyzing seismic data, wherein the program instructions are
executable by one or more processors to:
receive two-dimensional (2-D) seismic data from a formation, wherein the 2-D seismic data comprises a plurality of 2-D seismic
lines, wherein at least a subset of the plurality of 2-D seismic lines have an interline spacing of 200 meters or more;
for each hypothetical diffractor location of a plurality of hypothetical diffractor locations, search at least a subset of
the 2-D seismic data for coherent diffraction arrivals that are consistent with the hypothetical diffractor location, wherein
the plurality of hypothetical diffractor locations correspond to the points of a three-dimensional grid that spans a volume
of at least a portion of the formation; and
store information regarding each of the plurality of hypothetical diffractor locations that have coherent diffraction arrivals
consistent with the hypothetical diffractor location;
wherein an image is created from the stored information.
|