Work

Diffraction imaging and time-migration velocity analysis using oriented velocity continuation

Year: 2017

Type: article

Abstract: ABSTRACT We perform seismic diffraction imaging and time-migration velocity analysis by separating diffractions from specular reflections and decomposing them into slope components. We image the slope components using migration velocity extrapolation in time-space-slope coordinates. The extrapolation is described by a convection-type partial differential equation and implemented in a highly parallel manner in the Fourier domain. Synthetic and field data experiments show that the proposed algorithms are able to detect accurate time-migration velocities by measuring the flatness of diffraction events in slope gathers for single- and multiple-offset data.

Source: Geophysics

DOI: 10.1190/geo2016-0141.1

Authors: Luke Decker, Dmitrii Merzlikin, Sergey Fomel

Institutions: Bureau of Economic Geology, The University of Texas at Austin

Language: English

Topic: Seismic Imaging and Inversion Techniques

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: hybrid

Funder: King Abdullah University of Science and Technology

OpenAlex ID: W2590197948

FWCI: 3.505

Cites: 42

Cited by: 55

Related to: 10