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Prestack depth migration using straight ray technique(SRT)
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Harry Y. | - |
dc.contributor.author | Min, Dong-Joo | - |
dc.contributor.author | Shin, Changsoo | - |
dc.contributor.author | Yang, Dongwoo | - |
dc.contributor.author | Cha, Youngho | - |
dc.contributor.author | Suh, Jung hee | - |
dc.date.accessioned | 2009-08-04 | - |
dc.date.available | 2009-08-04 | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Journal of Seismic Exploration, 11: 271-281 | en |
dc.identifier.issn | 0963-0651 | - |
dc.identifier.uri | http://www.geophysical-press.com | - |
dc.identifier.uri | https://hdl.handle.net/10371/6125 | - |
dc.description.abstract | Kirchhoff prestack depth migration requires an elaborate book-keeping effort and a massive
IO process to construct Kirchhoff hyperbolas. In order to avoid the complexity of the programming code and the massive IO process, we propose a straight ray technique (SRT) for traveltimi calculations in Kirchhoff migration. Since all the rays are straight in. polar coordinates for the 2D velocity model,or in sphericalc oordinatesf or the 3D velocity model, traveltimesc an be simply computed along a straight ray for a given source-receiver configuration,without suffering from shadow zones and caustics, and used directly for building Kirchhoff hyperbolas. In this way, we clrcumvent the substantial IO process required for reading traveltimes on a disk and save computationals torage.N umerical examplesd emonstrateth at SRT computest raveltimesi ntermediate between first-arrival traveltimes and the most energetic arrival traveltimes, resulting in better images than the first arrival traveltimes for the 2D IFP Marmousi data. With the implementation of SRT for 2D Kirchhoff migration, we successfully extend our SRT to 3D Kirchhoff misration for the SECiEAGE salr dome data. | en |
dc.description.sponsorship | This work was financially supported by the National Laboratory Project
of the Ministry of Science and Technology, Brain Korea 21 Project of the Ministry of Education, grant No. R05-2000-00003 from the Basic Research Program of the Korea Science & Engineering Foundation, and grant No. PM10300 from the Korea Ocean Research & Development Institute. | en |
dc.language.iso | en | en |
dc.publisher | Geophysical Press | en |
dc.subject | straight ray technique | en |
dc.subject | Kirchhoff prestack depth migration | en |
dc.subject | traveltime calculation | en |
dc.subject | Kirchhoff hyperbola | en |
dc.subject | polar coordinate | en |
dc.subject | spherical coordinate | en |
dc.title | Prestack depth migration using straight ray technique(SRT) | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 민동주 | - |
dc.contributor.AlternativeAuthor | 신창수 | - |
dc.contributor.AlternativeAuthor | 양동우 | - |
dc.contributor.AlternativeAuthor | 차영호 | - |
dc.contributor.AlternativeAuthor | 서정희 | - |
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