Diffraction imaging and velocity analysis using oriented velocity continuation

Luke Decker; Sergey Fomel

doi:10.1190/segam2014-1471.1

Diffraction imaging and velocity analysis using oriented velocity continuation

Luke Decker, Sergey Fomel

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 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 language	English (US)
Title of host publication	SEG Technical Program Expanded Abstracts 2014
Publisher	Society of Exploration Geophysicists
Pages	4810-4815
Number of pages	6
DOIs	https://doi.org/10.1190/segam2014-1471.1
State	Published - Aug 5 2014
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank KAUST and Shell for partial financial support of thiswork
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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10.1190/segam2014-1471.1

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title = "Diffraction imaging and velocity analysis using oriented velocity continuation",

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.",

author = "Luke Decker and Sergey Fomel",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank KAUST and Shell for partial financial support of thiswork This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2014",

month = aug,

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doi = "10.1190/segam2014-1471.1",

language = "English (US)",

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T1 - Diffraction imaging and velocity analysis using oriented velocity continuation

AU - Decker, Luke

AU - Fomel, Sergey

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank KAUST and Shell for partial financial support of thiswork This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2014/8/5

Y1 - 2014/8/5

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/597710

UR - http://library.seg.org/doi/abs/10.1190/segam2014-1471.1

UR - http://www.scopus.com/inward/record.url?scp=85005990610&partnerID=8YFLogxK

U2 - 10.1190/segam2014-1471.1

DO - 10.1190/segam2014-1471.1

M3 - Conference contribution

SP - 4810

EP - 4815

BT - SEG Technical Program Expanded Abstracts 2014

PB - Society of Exploration Geophysicists

ER -

Diffraction imaging and velocity analysis using oriented velocity continuation

Abstract

Bibliographical note

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