| 摘要 |
A method for moveout-correcting CDP gathers of seismic data that takes nonhyperbolic moveout at large offsets into account. The entire range of offsets is divided into smaller ranges. Within each smaller range, a curve is fitted to the reflection time vs. offset data, and these separate curves are made to be continuous at range boundaries. The curves may be the hyperbolic or quartic options available in commercial seismic data processing packages. Additional computation time required due to lack of a single velocity function can be compensated for by interpolation techniques. The method has application to, inter alia, AVO analysis. |
