Full-waveform inversion with reflected waves for 2D VTI media

Handle URI:
http://hdl.handle.net/10754/625272
Title:
Full-waveform inversion with reflected waves for 2D VTI media
Authors:
Pattnaik, Sonali; Tsvankin, Ilya; Wang, Hui; Alkhalifah, Tariq
Abstract:
Full-waveform inversion in anisotropic media using reflected waves suffers from the strong non-linearity of the objective function and trade-offs between model parameters. Estimating long-wavelength model components by fixing parameter perturbations, referred to as reflection-waveform inversion (RWI), can mitigate nonlinearity-related inversion issues. Here, we extend RWI to acoustic VTI (transversely isotropic with a vertical symmetry axis) media. To minimize trade-offs between the model parameters, we employ a new hierarchical two-stage approach that operates with the P-wave normal-moveout velocity and anisotropy coefficents ζ and η. First, is estimated using a fixed perturbation in ζ, and then we invert for η by fixing the updated perturbation in . The proposed 2D algorithm is tested on a horizontally layered VTI model.
KAUST Department:
King Abdullah University of Science and Technology, , Saudi Arabia
Citation:
Pattnaik S, Tsvankin I, Wang H, Alkhalifah T (2016) Full-waveform inversion with reflected waves for 2D VTI media. SEG Technical Program Expanded Abstracts 2016. Available: http://dx.doi.org/10.1190/segam2016-13967833.1.
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/segam2016-13967833.1
Type:
Conference Paper
Sponsors:
This work was supported by the Consortium Project on Seismic Inverse Methods for Complex Structures at CWP. Tariq Alkhalifah thanks KAUST for its support.
Additional Links:
http://library.seg.org/doi/10.1190/segam2016-13967833.1
Appears in Collections:
Conference Papers

Full metadata record

DC FieldValue Language
dc.contributor.authorPattnaik, Sonalien
dc.contributor.authorTsvankin, Ilyaen
dc.contributor.authorWang, Huien
dc.contributor.authorAlkhalifah, Tariqen
dc.date.accessioned2017-07-27T11:21:47Z-
dc.date.available2017-07-27T11:21:47Z-
dc.date.issued2016-09-06en
dc.identifier.citationPattnaik S, Tsvankin I, Wang H, Alkhalifah T (2016) Full-waveform inversion with reflected waves for 2D VTI media. SEG Technical Program Expanded Abstracts 2016. Available: http://dx.doi.org/10.1190/segam2016-13967833.1.en
dc.identifier.doi10.1190/segam2016-13967833.1en
dc.identifier.urihttp://hdl.handle.net/10754/625272-
dc.description.abstractFull-waveform inversion in anisotropic media using reflected waves suffers from the strong non-linearity of the objective function and trade-offs between model parameters. Estimating long-wavelength model components by fixing parameter perturbations, referred to as reflection-waveform inversion (RWI), can mitigate nonlinearity-related inversion issues. Here, we extend RWI to acoustic VTI (transversely isotropic with a vertical symmetry axis) media. To minimize trade-offs between the model parameters, we employ a new hierarchical two-stage approach that operates with the P-wave normal-moveout velocity and anisotropy coefficents ζ and η. First, is estimated using a fixed perturbation in ζ, and then we invert for η by fixing the updated perturbation in . The proposed 2D algorithm is tested on a horizontally layered VTI model.en
dc.description.sponsorshipThis work was supported by the Consortium Project on Seismic Inverse Methods for Complex Structures at CWP. Tariq Alkhalifah thanks KAUST for its support.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/10.1190/segam2016-13967833.1en
dc.rightsArchived with thanks to SEG Technical Program Expanded Abstracts 2016en
dc.subjectanisotropyen
dc.subjectfull-waveform inversionen
dc.subjectreflectionen
dc.titleFull-waveform inversion with reflected waves for 2D VTI mediaen
dc.typeConference Paperen
dc.contributor.departmentKing Abdullah University of Science and Technology, , 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
dc.contributor.institutionCenter for Wave Phenomena, Colorado School of Mines, , United Statesen
kaust.authorTsvankin, Ilyaen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.