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Method for processing seismic data to identify anomalous absorption zones

United States Patent

6,982,927
January 3, 2006
View the Complete Patent at the US Patent & Trademark Office
A method is disclosed for identifying zones anomalously absorptive of seismic energy. The method includes jointly time-frequency decomposing seismic traces, low frequency bandpass filtering the decomposed traces to determine a general trend of mean frequency and bandwidth of the seismic traces, and high frequency bandpass filtering the decomposed traces to determine local variations in the mean frequency and bandwidth of the seismic traces. Anomalous zones are determined where there is difference between the general trend and the local variations.
Taner; M. Turhan (Houston, TX)
RDSP I, L.P. (Houston, TX)
10/ 670,110
September 24, 2003
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The present invention was made pursuant to contract number DE-FC26-01BC15356 with the United States Department of Energy. The United States Government retains certain rights in the invention.