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Method of estimating elastic and compositional parameters from seismic and echo-acoustic data

  • US 6,665,615 B2
  • Filed: 03/26/2001
  • Issued: 12/16/2003
  • Est. Priority Date: 10/22/1999
  • Status: Expired due to Term
First Claim
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1. A method for determining from measured reflection data on a plurality of trace positions a plurality of subsurface parameters, said method comprising the steps of:

  • (a) preprocessing the measured reflection data into a plurality of partial or full stacks;

    (b) specifying one or more initial subsurface parameters defining an initial subsurface model;

    (c) specifying a wavelet or wavelet field for each of the partial or full stacks of the measured reflection data;

    (d) calculating synthetic reflection data based on the specified wavelets and the initial subsurface parameters;

    (e) optimizing an objective function, comprising the weighted difference between measured reflection data and synthetic reflection data for a plurality of trace positions simultaneously; and

    (f) outputting the optimized subsurface parameters.

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