A New Wave Equation Based Source Location Method with Full-waveform Inversion

Handle URI:
http://hdl.handle.net/10754/624896
Title:
A New Wave Equation Based Source Location Method with Full-waveform Inversion
Authors:
Wu, Zedong; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Locating the source of a passively recorded seismic event is still a challenging problem, especially when the velocity is unknown. Many imaging approaches to focus the image do not address the velocity issue and result in images plagued with illumination artifacts. We develop a waveform inversion approach with an additional penalty term in the objective function to reward the focusing of the source image. This penalty term is relaxed early to allow for data fitting, and avoid cycle skipping, using an extended source. At the later stages the focusing of the image dominates the inversion allowing for high resolution source and velocity inversion. We also compute the source location explicitly and numerical tests show that we obtain good estimates of the source locations with this approach.
KAUST Department:
KAUST
Citation:
Wu Z, Alkhalifah T (2017) A New Wave Equation Based Source Location Method with Full-waveform Inversion. 79th EAGE Conference and Exhibition 2017. Available: http://dx.doi.org/10.3997/2214-4609.201700753.
Publisher:
EAGE Publications BV
Journal:
79th EAGE Conference and Exhibition 2017
Issue Date:
26-May-2017
DOI:
10.3997/2214-4609.201700753
Type:
Conference Paper
Sponsors:
We thank KAUST for its support and we thank the SWAG group for collaborative environment. We thank Guanghui Huang and Hanchen Wang for the useful discussions. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia.
Additional Links:
http://www.earthdoc.org/publication/publicationdetails/?publication=88470
Appears in Collections:
Conference Papers

Full metadata record

DC FieldValue Language
dc.contributor.authorWu, Zedongen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2017-06-12T08:33:41Z-
dc.date.available2017-06-12T08:33:41Z-
dc.date.issued2017-05-26en
dc.identifier.citationWu Z, Alkhalifah T (2017) A New Wave Equation Based Source Location Method with Full-waveform Inversion. 79th EAGE Conference and Exhibition 2017. Available: http://dx.doi.org/10.3997/2214-4609.201700753.en
dc.identifier.doi10.3997/2214-4609.201700753en
dc.identifier.urihttp://hdl.handle.net/10754/624896-
dc.description.abstractLocating the source of a passively recorded seismic event is still a challenging problem, especially when the velocity is unknown. Many imaging approaches to focus the image do not address the velocity issue and result in images plagued with illumination artifacts. We develop a waveform inversion approach with an additional penalty term in the objective function to reward the focusing of the source image. This penalty term is relaxed early to allow for data fitting, and avoid cycle skipping, using an extended source. At the later stages the focusing of the image dominates the inversion allowing for high resolution source and velocity inversion. We also compute the source location explicitly and numerical tests show that we obtain good estimates of the source locations with this approach.en
dc.description.sponsorshipWe thank KAUST for its support and we thank the SWAG group for collaborative environment. We thank Guanghui Huang and Hanchen Wang for the useful discussions. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia.en
dc.publisherEAGE Publications BVen
dc.relation.urlhttp://www.earthdoc.org/publication/publicationdetails/?publication=88470en
dc.rightsGold Open Accessen
dc.rightsArchived with thanks to 79th EAGE Conference and Exhibition 2017en
dc.titleA New Wave Equation Based Source Location Method with Full-waveform Inversionen
dc.typeConference Paperen
dc.contributor.departmentKAUSTen
dc.identifier.journal79th EAGE Conference and Exhibition 2017en
dc.eprint.versionPublisher's Version/PDFen
kaust.authorWu, Zedongen
kaust.authorAlkhalifah, Tariq Alien
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.