Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent
1999-07-06
2000-11-28
McElheny, Jr., Donald E.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
G01V 128
Patent
active
061547050
ABSTRACT:
A system and method is provided for estimating the inverse source wavelet of a seismic shot record for improved accuracy and efficiency in removing high order free surface multiples from the shot record, using a stochastic optimization technique, such as a genetic algorithm procedure, that can more readily accommodate non-linear aspects of this problem. The system and method is applied to a set of measured seismic field data, D.sub.o (x,t), with primary reflections and free surface multiples, where removal of the free surface multiples is determined utilizing an estimate of the inverse of the source wavelet and scale factors made from the seismic data. The system and method automatically optimizes estimates for the inverse of the source wavelet and scale factors.
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Crawford Kelly
McCormack Michael D.
Atlantic Richfield Company
McElheny Jr. Donald E.
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