3D ACOUSTIC PRESTACK REVERSE‐TIME MIGRATION1

作者: WEN-FONG CHANG , GEORGE A. McMECHAN

DOI: 10.1111/J.1365-2478.1990.TB01872.X

关键词:

摘要: A prestack reverse-time migration algorithm which operates on common-source gathers, recorded at the Earth's surface, from 3D structures, is conceived, implemented and tested. Reverse-time extrapolation of wavefield (a boundary-value problem), computation excitation-time imaging condition for each point in a volume (an initial-value are both performed using second-order finite-difference solution full scalar wave equation. The illustrated by processing synthetic data diffractor, an oblique wedge, French double dome fault model.

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