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Method and apparatus for finding horizons in 3D seismic data

  • US 5,251,184 A
  • Filed: 07/23/1992
  • Issued: 10/05/1993
  • Est. Priority Date: 07/09/1991
  • Status: Expired due to Term
First Claim
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1. Apparatus for automatically picking horizons from a three dimensional volume of seismic data traces and creating an indicia volume representative of horizons in the earth'"'"'s crust, where a horizon is a bedding interface in the earth'"'"'s crust and is represented in said seismic data traces through said bedding interface by a common attribute of a seismic wavelet, and where said common attribute may vary in depth as a function of x-y coordinates of said seismic data traces, comprisingcomputer program means for converting each of said seismic data traces to an indicia trace defined by a sequence of a first indicium and a second indicium as a function of depth, where a first indicium at any depth of such indicia trace indicates that a horizon exists at such depth of said seismic data trace and a second indicium at any depth of such indicia trace indicates that a horizon does not exist at such depth of said seismic data trace, andmeans for storing each of said indicia traces in the memory of a computer as a three-dimensional indicia volume of indicia traces.

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