水平叠加剖面的τ-p域偏移

MIGRATION OF THE HORIZONTAL STACKED SECTION IN TAU-P DOMAIN

武汉地质学院北京研究生部

τ-p变换不仅能够应用于叠前地震剖面的偏移,也能够应用于叠后地震剖面的偏移。本文从F-K域偏移公式出发,系统地导出了叠后地震(时间和伪深度)剖面波动理论的τ-p域偏移公式。τ-p域偏移和F-K域偏移是完全等价的,同属于常规时间偏移方法的范畴.

T-p transformation could not only be used to migrate the seismic section before stack, but it could also be used to migrate the seismic section after stack. Based on the formula for f-k domain migration and in line with the wave theory, the formula for seismic section migration after stack in T-p domain was derived. It has been proved that the migration in T-p domain and in f-k domain are entirely equivalent, both of them is in essence the conventional time migration.