Diffraction imaging and velocity analysis using oriented velocity continuation

Luke Decker, Sergey Fomel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

We perform seismic diffraction imaging and velocity analysis by separating diffractions from specular reflections and decomposing them into slope components. We image slope components using extrapolation in migration velocity in time-space-slope coordinates. The extrapolation is described by a convection-type partial differential equation and implemented efficiently in the Fourier domain. Synthetic and field data experiments show that the proposed algorithm is able to detect accurate time-migration velocities by automatically measuring the flatness of events in dip-angle gathers.
Original languageEnglish (US)
Title of host publicationSEG Technical Program Expanded Abstracts 2014
PublisherSociety of Exploration Geophysicists
Pages4810-4815
Number of pages6
DOIs
StatePublished - Aug 5 2014
Externally publishedYes

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