Patent ID: 6141622
Filing Date: 2000-10-31
Classification: G01V

Abstract:
A method of locating a subsurface geologic structure indicating a recoverable natural resource in an underground volume, said method comprising:obtaining 3D seismic data traversing at least a portion of said underground volume;calculating a semblance attribute within a windowed portion of said 3D seismic data wherein said semblance attribute calculation is dependent at least in part on windowed seismic samples displaced in an in-line spatial direction, windowed seismic samples displaced in a cross-line spatial direction, the number of said in-line seismic samples, and the number of said cross-line seismic samples;displaying a representation of said structure, wherein said representation is dependent at least in part on said semblance attribute; anddrilling a well capable of recovering at least a portion of said natural resource.