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- W1970755254 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2006Imaging steep salt flank with plane‐wave migration in tilted coordinatesAuthors: Guojian ShanBiondo BiondiGuojian ShanStanford UniversitySearch for more papers by this author and Biondo BiondiStanford UniversitySearch for more papers by this authorhttps://doi.org/10.1190/1.2370011 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Plane‐wave migration in tilted coordinates is powerful to image steeply dipping reflectors, although the one‐way wave‐equation operator is used. In plane‐wave migration, the recorded surface data are transferred to plane‐wave data by slant‐stack processing. Both the source plane‐wave and the corresponding slant‐stacking data are extrapolated into the subsurface, and images are generated by cross‐correlating these two wavefields. For each plane‐wave source, we assign tilted coordinates whose direction depends on the propagation direction of the plane‐wave. For isotropic media, the one‐way wave‐equation operator does not change. For vertical transversely isotropic (VTI) media, one‐way wave‐equation operators for tilted transversely isotropic (TI) media are required because of the rotation of the coordinates. I apply this method to the BP 2004 velocity benchmark, to a synthetic dataset for VTI media, and to a real anisotropic dataset. The numerical examples show that plane‐wave migration in tilted coordinates can image steeply dipping reflectors and overturned waves, and it is a good tool for salt delineation.Permalink: https://doi.org/10.1190/1.2370011FiguresReferencesRelatedDetailsCited ByAccelerating Seismic Computations Using Customized Number Representations on FPGAsEURASIP Journal on Embedded Systems, Vol. 2009Velocity sensitivity of reverse‐time migrationGuojian Shan, Lin Zhang, Yue Wang, Tamas Nemeth, and Wei Liu15 December 2008 SEG Technical Program Expanded Abstracts 2006ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2006 Pages: 3541 publication data© 2006 Copyright © 2006 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 06 Oct 2006 CITATION INFORMATION Guojian Shan and Biondo Biondi, (2006), Imaging steep salt flank with plane‐wave migration in tilted coordinates, SEG Technical Program Expanded Abstracts : 2372-2376. https://doi.org/10.1190/1.2370011 Plain-Language Summary PDF DownloadLoading ..." @default.
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- W1970755254 title "Imaging steep salt flank with plane‐wave migration in tilted coordinates" @default.
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