Method of processing seismic data
First Claim
1. A method of processing seismic data samples obtained from seismic signals, propagating in an anisotropic medium, comprising the steps of:
- (a) corresponding the seismic data samples with scattering angles and azimuth at each migration dip at each point of the medium;
(b) applying, an inverse operator to the seismic data samples corresponded according to step (a), so as to produce intermediate anisotropic elastic parameter combinations for each migration dip at each point of the medium, the inverse operator comprising an inverse of a scattering function for variations in elastic parameters from a reference medium against scattering angle, azimuth and migration dip; and
(c) migrating the intermediate anisotropic elastic parameter combinations to their proper locations.
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Abstract
A method is provided for processing seismic data samples obtained from seismic signals propagating in an anisotropic medium. The data samples are associated with scattering angles and azimuth at each migration dip at each image point of the medium. An inverse operator is then applied to the samples so as to provide intermediate anisotropic elastic parameter combinations for each migration dip at each point of the medium. The inverse operator comprises an inverse of a scattering function for variations in elastic parameters from a reference medium against scattering angle and migration dip. The intermediate anisotropic elastic parameter combinations are then migrated to their proper locations.
137 Citations
7 Claims
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1. A method of processing seismic data samples obtained from seismic signals, propagating in an anisotropic medium, comprising the steps of:
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(a) corresponding the seismic data samples with scattering angles and azimuth at each migration dip at each point of the medium; (b) applying, an inverse operator to the seismic data samples corresponded according to step (a), so as to produce intermediate anisotropic elastic parameter combinations for each migration dip at each point of the medium, the inverse operator comprising an inverse of a scattering function for variations in elastic parameters from a reference medium against scattering angle, azimuth and migration dip; and (c) migrating the intermediate anisotropic elastic parameter combinations to their proper locations. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification