De‐blending reverse‐time migration

Handle URI:
http://hdl.handle.net/10754/594722
Title:
De‐blending reverse‐time migration
Authors:
Fei, Tong W.; Luo, Yi; Schuster, Gerard T. ( 0000-0001-7532-1587 )
Abstract:
Reverse‐time migration (RTM), based on the full two‐way wave equation, has gained interest and become a popular imaging tool for complex structures in the last few years. The method is well‐known for its ability to better image the steeply dipping and overturned structures than the migration methods based on the one‐way wave equation extrapolation. However, the RTM image often contains low frequency and back‐scattering noise, and the imaging quality is sensitive to the migration velocity. In order to improve the RTM imaging quality and make the RTM image less sensitive to the velocity model, we developed an RTM de‐blending technique which separates upgoing and downgoing source and receiver wavefields, and then use them to construct final RTM images. Test results show that decomposed images obtained from only the downgoing source and receiver wavefields are less sensitive to velocity. It removes unwanted noise and migration artifacts from conventional RTM, and the imaging quality is greatly improved compared with a conventional RTM image.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2010
Conference/Event name:
SEG Technical Program Expanded Abstracts 2010
Issue Date:
17-Oct-2010
DOI:
10.1190/1.3513496
Type:
Conference Paper
Additional Links:
http://library.seg.org/doi/abs/10.1190/1.3513496
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorFei, Tong W.en
dc.contributor.authorLuo, Yien
dc.contributor.authorSchuster, Gerard T.en
dc.date.accessioned2016-01-24T07:41:55Zen
dc.date.available2016-01-24T07:41:55Zen
dc.date.issued2010-10-17en
dc.identifier.doi10.1190/1.3513496en
dc.identifier.urihttp://hdl.handle.net/10754/594722en
dc.description.abstractReverse‐time migration (RTM), based on the full two‐way wave equation, has gained interest and become a popular imaging tool for complex structures in the last few years. The method is well‐known for its ability to better image the steeply dipping and overturned structures than the migration methods based on the one‐way wave equation extrapolation. However, the RTM image often contains low frequency and back‐scattering noise, and the imaging quality is sensitive to the migration velocity. In order to improve the RTM imaging quality and make the RTM image less sensitive to the velocity model, we developed an RTM de‐blending technique which separates upgoing and downgoing source and receiver wavefields, and then use them to construct final RTM images. Test results show that decomposed images obtained from only the downgoing source and receiver wavefields are less sensitive to velocity. It removes unwanted noise and migration artifacts from conventional RTM, and the imaging quality is greatly improved compared with a conventional RTM image.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/1.3513496en
dc.subjectdepthen
dc.subjectmigrationen
dc.subjectnoiseen
dc.subjectprestacken
dc.subjectwave equationen
dc.titleDe‐blending reverse‐time migrationen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2010en
dc.conference.date17-22 October, 2010en
dc.conference.nameSEG Technical Program Expanded Abstracts 2010en
dc.conference.locationDenver, COen
dc.eprint.versionPost-printen
dc.contributor.institutionSaudi Aramcoen
kaust.authorSchuster, Gerard T.en
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