A stable and practical implementation of least-squares reverse time migration (2013)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2013A stable and practical implementation of least-squares reverse time migrationAuthors: Yu ZhangLian DuanYi XieYu ZhangCGG, Lian DuanCGG, and Yi XieCGGhttps://doi.org/10.1190/segam2013-0577.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Adapting reverse-time migration (RTM) and demigration (RTDM) as the imaging and modeling operators to maximize the cross-correlation between the simulated and observed seismic data, we introduce a new practical least-squares RTM (LSRTM) scheme and derive its Newton's method in seeking numerical solutions with fast convergence. Through both synthetic and real experiments, the proposed LSRTM is shown to provide high quality images with balanced amplitudes, improved focusing and enhanced resolution. It is also capable of removing free surface ghosts caused by towed streamer acquisition and reducing crosstalk noise associated with data shot with simultaneous sources. 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Schuster5 August 2014 SEG Technical Program Expanded Abstracts 2013ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2013 Pages: 5258 Publisher:Society of Exploration Geophysicists HistoryPublished: 19 Aug 2013 CITATION INFORMATION Yu Zhang, Lian Duan, and Yi Xie, (2013), "A stable and practical implementation of least-squares reverse time migration," SEG Technical Program Expanded Abstracts : 3716-3720. https://doi.org/10.1190/segam2013-0577.1 Plain-Language Summary PDF DownloadLoading ...