Wavefield extrapolation in pseudodepth domain

Handle URI:
http://hdl.handle.net/10754/562646
Title:
Wavefield extrapolation in pseudodepth domain
Authors:
Ma, Xuxin; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Wavefields are commonly computed in the Cartesian coordinate frame. Its efficiency is inherently limited due to spatial oversampling in deep layers, where the velocity is high and wavelengths are long. To alleviate this computational waste due to uneven wavelength sampling, we convert the vertical axis of the conventional domain from depth to vertical time or pseudodepth. This creates a nonorthognal Riemannian coordinate system. Isotropic and anisotropic wavefields can be extrapolated in the new coordinate frame with improved efficiency and good consistency with Cartesian domain extrapolation results. Prestack depth migrations are also evaluated based on the wavefield extrapolation in the pseudodepth domain.© 2013 Society of Exploration Geophysicists. All rights reserved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program; Earth Sciences and Engineering Program; Environmental Science and Engineering Program
Publisher:
Society of Exploration Geophysicists
Journal:
Geophysics
Issue Date:
Feb-2013
DOI:
10.1190/GEO2012-0237.1
Type:
Article
ISSN:
00168033
Sponsors:
We thank KAUST for supporting this work. We are grateful to Mohammad Zuberi and Yunseok Choi for many helpful discussions. The outsanding reviews by Alexey Stovas, Yu Zhang, and an anonymous reviewer have greatly improved this manuscript. We acknowledge Hess Corporation and SMAART consortium for releasing their synthetic salt data sets.
Appears in Collections:
Articles; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorMa, Xuxinen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2015-08-03T10:59:38Zen
dc.date.available2015-08-03T10:59:38Zen
dc.date.issued2013-02en
dc.identifier.issn00168033en
dc.identifier.doi10.1190/GEO2012-0237.1en
dc.identifier.urihttp://hdl.handle.net/10754/562646en
dc.description.abstractWavefields are commonly computed in the Cartesian coordinate frame. Its efficiency is inherently limited due to spatial oversampling in deep layers, where the velocity is high and wavelengths are long. To alleviate this computational waste due to uneven wavelength sampling, we convert the vertical axis of the conventional domain from depth to vertical time or pseudodepth. This creates a nonorthognal Riemannian coordinate system. Isotropic and anisotropic wavefields can be extrapolated in the new coordinate frame with improved efficiency and good consistency with Cartesian domain extrapolation results. Prestack depth migrations are also evaluated based on the wavefield extrapolation in the pseudodepth domain.© 2013 Society of Exploration Geophysicists. All rights reserved.en
dc.description.sponsorshipWe thank KAUST for supporting this work. We are grateful to Mohammad Zuberi and Yunseok Choi for many helpful discussions. The outsanding reviews by Alexey Stovas, Yu Zhang, and an anonymous reviewer have greatly improved this manuscript. We acknowledge Hess Corporation and SMAART consortium for releasing their synthetic salt data sets.en
dc.publisherSociety of Exploration Geophysicistsen
dc.titleWavefield extrapolation in pseudodepth domainen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEarth Science and Engineering Programen
dc.contributor.departmentEarth Sciences and Engineering Programen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalGeophysicsen
kaust.authorMa, Xuxinen
kaust.authorAlkhalifah, Tariq Alien
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