Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1993-07-26
1997-06-17
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 51, 367 61, 364421, G01V 136
Patent
active
056403682
ABSTRACT:
Disclosed is a method for efficiently and accurately determining subsurface velocities for use in migration of seismic data. The method calls for restricting the number of traces considered to those lying upon that portion of the Kirchhoff summation curve wherein the integrand for Kirchhoff migration is smooth. In the preferred embodiment, only a random sample of traces within this aperture are used in the calculations. Improvements in efficiency on the order of a factor of 1000 can be realized with the preferred embodiment.
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Exxon Production Research Company
Koch Stephen P.
McLean S. A.
Moskowitz Nelson
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