3D elastic full-waveform inversion for OBC data using the P-wave excitation amplitude

Handle URI:
http://hdl.handle.net/10754/625374
Title:
3D elastic full-waveform inversion for OBC data using the P-wave excitation amplitude
Authors:
Oh, Juwon; Kalita, Mahesh; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
We suggest a fast and efficient 3D elastic full waveform inversion (FWI) algorithm based on the excitation amplitude (maximum energy arrival) of the P-wave in the source wavefield. It evaluates the gradient direction significantly faster than its conventional counterpart. In addition, it removes the long-wavelength artifacts from the gradient, which are often originated from SS correlation process. From these advantages, the excitation approach offers faster convergence not only for the S wave velocity, but also for the entire process of multi-parameter inversion, compared to the conventional FWI. The feasibility of the proposed method is demonstrated through the synthetic Marmousi and a real OBC data from North Sea.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program
Citation:
Oh J-W, Kalita M, Alkhalifah T (2017) 3D elastic full-waveform inversion for OBC data using the P-wave excitation amplitude. SEG Technical Program Expanded Abstracts 2017. Available: http://dx.doi.org/10.1190/segam2017-17722670.1.
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2017
Issue Date:
17-Aug-2017
DOI:
10.1190/segam2017-17722670.1
Type:
Conference Paper
Sponsors:
Research reported in this publication was supported by competitive research funding from King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. The authors would like to thank Statoil ASA and the Volve license partners ExxonMobil Exploration and Production Norway AS and Bayerngas Norge AS for the release of the Volve data. We would like to thank Marianne Houbiers from Statoil for providing some helpful suggestions and corrections. For computer time, this research used the resources of the Supercomputing Laboratory in KAUST. We thank the members of Seismic Wave Analysis Group (SWAG) in KAUST for helpful discussions.
Additional Links:
http://library.seg.org/doi/10.1190/segam2017-17722670.1
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorOh, Juwonen
dc.contributor.authorKalita, Maheshen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2017-08-23T11:54:05Z-
dc.date.available2017-08-23T11:54:05Z-
dc.date.issued2017-08-17en
dc.identifier.citationOh J-W, Kalita M, Alkhalifah T (2017) 3D elastic full-waveform inversion for OBC data using the P-wave excitation amplitude. SEG Technical Program Expanded Abstracts 2017. Available: http://dx.doi.org/10.1190/segam2017-17722670.1.en
dc.identifier.doi10.1190/segam2017-17722670.1en
dc.identifier.urihttp://hdl.handle.net/10754/625374-
dc.description.abstractWe suggest a fast and efficient 3D elastic full waveform inversion (FWI) algorithm based on the excitation amplitude (maximum energy arrival) of the P-wave in the source wavefield. It evaluates the gradient direction significantly faster than its conventional counterpart. In addition, it removes the long-wavelength artifacts from the gradient, which are often originated from SS correlation process. From these advantages, the excitation approach offers faster convergence not only for the S wave velocity, but also for the entire process of multi-parameter inversion, compared to the conventional FWI. The feasibility of the proposed method is demonstrated through the synthetic Marmousi and a real OBC data from North Sea.en
dc.description.sponsorshipResearch reported in this publication was supported by competitive research funding from King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. The authors would like to thank Statoil ASA and the Volve license partners ExxonMobil Exploration and Production Norway AS and Bayerngas Norge AS for the release of the Volve data. We would like to thank Marianne Houbiers from Statoil for providing some helpful suggestions and corrections. For computer time, this research used the resources of the Supercomputing Laboratory in KAUST. We thank the members of Seismic Wave Analysis Group (SWAG) in KAUST for helpful discussions.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/10.1190/segam2017-17722670.1en
dc.rightsArchived with thanks to SEG Technical Program Expanded Abstracts 2017en
dc.subjectfull-waveform inversionen
dc.subjectmultiparameteren
dc.subjectOBCen
dc.subject3Den
dc.subjectelasticen
dc.title3D elastic full-waveform inversion for OBC data using the P-wave excitation amplitudeen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2017en
dc.eprint.versionPublisher's Version/PDFen
kaust.authorOh, Juwonen
kaust.authorKalita, Maheshen
kaust.authorAlkhalifah, Tariq Alien
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