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Post-stack Diffraction Imaging Using Reverse-time Migration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
Summary
We propose a method for imaging small scale diffraction objects. It is based on separation between specular reflection and diffraction components of the total wavefield in the migrated domain. Reverse-time migration was utilized to produce surface dip-angle common image gathers. We used continuity of diffractions in the dip-angle CIGs as a criterion for separating reflections from diffractions. Synthetic and real data examples illustrate efficient application of the method in case of moderate lateral velocity variation.
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