Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Reexamination Certificate
2007-02-06
2009-12-22
Hellner, Mark (Department: 3663)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
C367S038000
Reexamination Certificate
active
07636275
ABSTRACT:
A method and system of seismic data processing includes acquiring first and second prestack seismic datasets wherein the seismic datasets have a time-lapse relationship. The first prestack seismic dataset is inverted to determine a first source wavelet data set and a first reflectivity parameters data set. A perturbation data set is obtained by simultaneously minimizing an Lp-Norm between a portion of the first reflectivity parameters data set and reflectivity parameters for the second data set, an Lp-Norm between the first source wavelet data set and a source wavelet for the second data set and an Lp-Norm for data misfit between the first prestack seismic data set and the second prestack seismic data set. The perturbation dataset may be inverted for petrophysical parameters and for determining time-lapse changes in a reservoir.
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Anno Phil Dean
Routh Partha Sarathi
ConocoPhillips Company
Hellner Mark
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