Practical waveform inversion in anisotropic media: The natural combination of the data and image objectives

Handle URI:
http://hdl.handle.net/10754/625258
Title:
Practical waveform inversion in anisotropic media: The natural combination of the data and image objectives
Authors:
Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 ) ; Wu, Zedong
Abstract:
Addressing anisotropy in full wavenumber inversion (FWI) is crucial to obtaining credible models, and it is extremely challenging considering the multi parameter nature of the inversion. A successful FWI in anisotropic media takes into account the sensitivity of the data (or the wave) to the long and short wavelength components of the anisotropic parameters. Considering the low sensitivity of FWI to the anellipticity parameter ? when parametrizing the acoustic transversely isotropic model with the horizontal velocity, η and ε, we develop a combined FWI and reflection waveform inversion (RWI) to invert for the anisotropic parameters that influence surface seismic data. This practical waveform inversion (PWI) separates the parameters to their resolvable scales, with information accessed from the data fitting (FWI) and the image focusing (RWI) objectives. With this parametrization, the RWI role is to obtain a smooth ηmodel, as well as velocity, while FWI focusses on the scattering potential of the horizontal velocity. The parameter η is used to produce the Born scattered wavefield for the RWI part and eventually fit the amplitude for the imperfect physics in the FWI part.
KAUST Department:
KAUST, , Saudi Arabia
Citation:
Alkhalifah T, Wu Z (2016) Practical waveform inversion in anisotropic media: The natural combination of the data and image objectives. SEG Technical Program Expanded Abstracts 2016. Available: http://dx.doi.org/10.1190/segam2016-13953250.1.
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2016
Conference/Event name:
SEG International Exposition and 86th Annual Meeting, SEG 2016
Issue Date:
6-Sep-2016
DOI:
10.1190/segam2016-13953250.1
Type:
Conference Paper
Sponsors:
We thank KAUST for its support. We appreciate the Seismic wave analysis group (SWAG) for a collaborative environment.
Additional Links:
http://library.seg.org/doi/10.1190/segam2016-13953250.1
Appears in Collections:
Conference Papers

Full metadata record

DC FieldValue Language
dc.contributor.authorAlkhalifah, Tariq Alien
dc.contributor.authorWu, Zedongen
dc.date.accessioned2017-07-26T06:19:10Z-
dc.date.available2017-07-26T06:19:10Z-
dc.date.issued2016-09-06en
dc.identifier.citationAlkhalifah T, Wu Z (2016) Practical waveform inversion in anisotropic media: The natural combination of the data and image objectives. SEG Technical Program Expanded Abstracts 2016. Available: http://dx.doi.org/10.1190/segam2016-13953250.1.en
dc.identifier.doi10.1190/segam2016-13953250.1en
dc.identifier.urihttp://hdl.handle.net/10754/625258-
dc.description.abstractAddressing anisotropy in full wavenumber inversion (FWI) is crucial to obtaining credible models, and it is extremely challenging considering the multi parameter nature of the inversion. A successful FWI in anisotropic media takes into account the sensitivity of the data (or the wave) to the long and short wavelength components of the anisotropic parameters. Considering the low sensitivity of FWI to the anellipticity parameter ? when parametrizing the acoustic transversely isotropic model with the horizontal velocity, η and ε, we develop a combined FWI and reflection waveform inversion (RWI) to invert for the anisotropic parameters that influence surface seismic data. This practical waveform inversion (PWI) separates the parameters to their resolvable scales, with information accessed from the data fitting (FWI) and the image focusing (RWI) objectives. With this parametrization, the RWI role is to obtain a smooth ηmodel, as well as velocity, while FWI focusses on the scattering potential of the horizontal velocity. The parameter η is used to produce the Born scattered wavefield for the RWI part and eventually fit the amplitude for the imperfect physics in the FWI part.en
dc.description.sponsorshipWe thank KAUST for its support. We appreciate the Seismic wave analysis group (SWAG) for a collaborative environment.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/10.1190/segam2016-13953250.1en
dc.rightsArchived with thanks to SEG Technical Program Expanded Abstracts 2016en
dc.titlePractical waveform inversion in anisotropic media: The natural combination of the data and image objectivesen
dc.typeConference Paperen
dc.contributor.departmentKAUST, , Saudi Arabiaen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2016en
dc.conference.date2011-10-16 to 2011-10-21en
dc.conference.nameSEG International Exposition and 86th Annual Meeting, SEG 2016en
dc.conference.locationDallas, TX, USAen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorAlkhalifah, Tariq Alien
kaust.authorWu, Zedongen
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