Reverse time migration of prism waves for salt flank delineation

Handle URI:
http://hdl.handle.net/10754/593698
Title:
Reverse time migration of prism waves for salt flank delineation
Authors:
Dai, Wei; Schuster, Gerard T. ( 0000-0001-7532-1587 )
Abstract:
In this paper, we present a new reverse time migration method for imaging salt flanks with prism wave reflections. It consists of four steps: (1) migrating the seismic data with conventional RTM to give the RTM image; (2) using the RTM image as a reflectivity model to simulate source-side reflections with the Born approximation; (3) zero-lag correlation of the source-side reflection wavefields and receiver-side wavefields to produce the prism wave migration image; and (4) repeating steps 2 and 3 for the receiver-side reflections. An advantage of this method is that there is no need to pick the horizontal reflectors prior to migration of the prism waves. It also separately images the vertical structures at a different step to reduce crosstalk interference. The disadvantage of prism wave migration algorithm is that its computational cost is twice that of conventional RTM. The empirical results with a salt model suggest that prism wave migration can be an effective method for salt flank delineation in the absence of diving waves.
KAUST Department:
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/segam2013-0414.1
Type:
Conference Paper
Additional Links:
http://library.seg.org/doi/abs/10.1190/segam2013-0414.1
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorDai, Weien
dc.contributor.authorSchuster, Gerard T.en
dc.date.accessioned2016-01-18T08:30:29Zen
dc.date.available2016-01-18T08:30:29Zen
dc.date.issued2013-09-22en
dc.identifier.doi10.1190/segam2013-0414.1en
dc.identifier.urihttp://hdl.handle.net/10754/593698en
dc.description.abstractIn this paper, we present a new reverse time migration method for imaging salt flanks with prism wave reflections. It consists of four steps: (1) migrating the seismic data with conventional RTM to give the RTM image; (2) using the RTM image as a reflectivity model to simulate source-side reflections with the Born approximation; (3) zero-lag correlation of the source-side reflection wavefields and receiver-side wavefields to produce the prism wave migration image; and (4) repeating steps 2 and 3 for the receiver-side reflections. An advantage of this method is that there is no need to pick the horizontal reflectors prior to migration of the prism waves. It also separately images the vertical structures at a different step to reduce crosstalk interference. The disadvantage of prism wave migration algorithm is that its computational cost is twice that of conventional RTM. The empirical results with a salt model suggest that prism wave migration can be an effective method for salt flank delineation in the absence of diving waves.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/segam2013-0414.1en
dc.subjectmigrationen
dc.subjectscatteringen
dc.subjectreverse-timeen
dc.titleReverse time migration of prism waves for salt flank delineationen
dc.typeConference Paperen
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
dc.contributor.institutionWesternGecoen
kaust.authorSchuster, Gerard T.en
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