Background velocity inversion by phase along reflection wave paths

Handle URI:
http://hdl.handle.net/10754/593367
Title:
Background velocity inversion by phase along reflection wave paths
Authors:
Yu, Han; Guo, Bowen; Schuster, Gerard T. ( 0000-0001-7532-1587 )
Abstract:
A background velocity model containing the correct lowwavenumber information is desired for both the quality of the migration image and the success of waveform inversion. We propose to invert for the low-wavenumber part of the velocity model by minimizing the phase difference between predicted and observed reflections. The velocity update is exclusively along the reflection wavepaths and, unlike conventional FWI, not along the reflection ellipses. This allows for reconstructing the smoothly varying parts of the background velocity model. Tests with synthetic data show both the benefits and limitations of this method.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2014
Conference/Event name:
SEG Technical Program Expanded Abstracts 2014
Issue Date:
5-Aug-2014
DOI:
10.1190/segam2014-0011.1
Type:
Conference Paper
Additional Links:
http://library.seg.org/doi/abs/10.1190/segam2014-0011.1
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYu, Hanen
dc.contributor.authorGuo, Bowenen
dc.contributor.authorSchuster, Gerard T.en
dc.date.accessioned2016-01-13T09:46:45Zen
dc.date.available2016-01-13T09:46:45Zen
dc.date.issued2014-08-05en
dc.identifier.doi10.1190/segam2014-0011.1en
dc.identifier.urihttp://hdl.handle.net/10754/593367en
dc.description.abstractA background velocity model containing the correct lowwavenumber information is desired for both the quality of the migration image and the success of waveform inversion. We propose to invert for the low-wavenumber part of the velocity model by minimizing the phase difference between predicted and observed reflections. The velocity update is exclusively along the reflection wavepaths and, unlike conventional FWI, not along the reflection ellipses. This allows for reconstructing the smoothly varying parts of the background velocity model. Tests with synthetic data show both the benefits and limitations of this method.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/segam2014-0011.1en
dc.subject2Den
dc.subjectphaseen
dc.subjectreflectionen
dc.subjecttomographyen
dc.subjectvelocityen
dc.titleBackground velocity inversion by phase along reflection wave pathsen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2014en
dc.conference.nameSEG Technical Program Expanded Abstracts 2014en
dc.eprint.versionPublisher's Version/PDFen
kaust.authorYu, Hanen
kaust.authorGuo, Bowenen
kaust.authorSchuster, Gerard T.en
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