Time-domain incomplete Gauss-Newton full-waveform inversion of Gulf of Mexico data

Handle URI:
http://hdl.handle.net/10754/593673
Title:
Time-domain incomplete Gauss-Newton full-waveform inversion of Gulf of Mexico data
Authors:
AlTheyab, Abdullah ( 0000-0002-1769-7364 ) ; Wang, Xin; Schuster, Gerard T. ( 0000-0001-7532-1587 )
Abstract:
We apply the incomplete Gauss-Newton full-waveform inversion (TDIGN-FWI) to Gulf of Mexico (GOM) data in the space-time domain. In our application, iterative least-squares reverse-time migration (LSRTM) is used to estimate the model update at each non-linear iteration, and the number of LSRTM iterations is progressively increased after each non-linear iteration. With this method, model updating along deep reflection wavepaths are automatically enhanced, which in turn improves imaging below the reach of diving-waves. The forward and adjoint operators are implemented in the space-time domain to simultaneously invert the data over a range of frequencies. A multiscale approach is used where higher frequencies are down-weighted significantly at early iterations, and gradually included in the inversion. Synthetic data results demonstrate the effectiveness of reconstructing both the high- and low-wavenumber features in the model without relying on diving waves in the inversion. Results with Gulf of Mexico field data show a significantly improved migration image in both the shallow and deep sections.
KAUST Department:
Earth Science and Engineering Program; Physical Sciences and Engineering (PSE) Division
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2013
Conference/Event name:
SEG Technical Program Expanded Abstracts 2013
Issue Date:
22-Sep-2013
DOI:
10.1190/segam2013-1478.1
Type:
Conference Paper
Additional Links:
http://library.seg.org/doi/abs/10.1190/segam2013-1478.1
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAlTheyab, Abdullahen
dc.contributor.authorWang, Xinen
dc.contributor.authorSchuster, Gerard T.en
dc.date.accessioned2016-01-18T08:23:32Zen
dc.date.available2016-01-18T08:23:32Zen
dc.date.issued2013-09-22en
dc.identifier.doi10.1190/segam2013-1478.1en
dc.identifier.urihttp://hdl.handle.net/10754/593673en
dc.description.abstractWe apply the incomplete Gauss-Newton full-waveform inversion (TDIGN-FWI) to Gulf of Mexico (GOM) data in the space-time domain. In our application, iterative least-squares reverse-time migration (LSRTM) is used to estimate the model update at each non-linear iteration, and the number of LSRTM iterations is progressively increased after each non-linear iteration. With this method, model updating along deep reflection wavepaths are automatically enhanced, which in turn improves imaging below the reach of diving-waves. The forward and adjoint operators are implemented in the space-time domain to simultaneously invert the data over a range of frequencies. A multiscale approach is used where higher frequencies are down-weighted significantly at early iterations, and gradually included in the inversion. Synthetic data results demonstrate the effectiveness of reconstructing both the high- and low-wavenumber features in the model without relying on diving waves in the inversion. Results with Gulf of Mexico field data show a significantly improved migration image in both the shallow and deep sections.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/segam2013-1478.1en
dc.subjectfull-waveform inversionen
dc.titleTime-domain incomplete Gauss-Newton full-waveform inversion of Gulf of Mexico dataen
dc.typeConference Paperen
dc.contributor.departmentEarth Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2013en
dc.conference.date22-27 September 2013en
dc.conference.nameSEG Technical Program Expanded Abstracts 2013en
dc.conference.locationHouston, Texas, USAen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorAlTheyab, Abdullahen
kaust.authorWang, Xinen
kaust.authorSchuster, Gerard T.en
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