L-15 P-P AND P-S JOINT VELOCITY INVERSION FOR MULTICOMPONENT SEISMIC DATA YAOHUI ZHANG 1 PGS Seres Division 738 Highway 6 South Suite 300 Houston TX 77079 USA Abstract A novel and robust method to extract P and S interval velocities from multicomponent seismic data via P-P and P-S joint velocity inversion is presented in this paper. The joint inversion was performed on time migrated data and the estimated initial velocities are decomposed and reconstructed into an invertible form for the derivation of P and S interval velocities. This method is a poststack inversion and is different from conventional velocity inversion


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