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• W2770333670 abstract "PreviousNext No Access15th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 31 July-3 August 2017Imaging with Marchenko focusing functions in acoustic and elastic mediaAuthors: Carlos Alberto da Costa FilhoGiovanni Angelo MelesAndrew CurtisCarlos Alberto da Costa FilhoUniversity of EdinburghSearch for more papers by this author, Giovanni Angelo MelesDelft University of Technology, formerly University of EdinburghSearch for more papers by this author, and Andrew CurtisUniversity of EdinburghSearch for more papers by this authorhttps://doi.org/10.1190/sbgf2017-265 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Applications of the Marchenko method have recently been developed for migration, wavefield redatuming, internal multiple subtraction, and primaries estimation. Marchenko methods estimate the subsurface-to-surface point-source Green's functions and the so-called focusing functions. Focusing functions are solutions of the wave equation which focus in time and space at specified subsurface locations. Here, we use these focusing functions as virtual source/receiver surface acquisition wavefields, with the upgoing focusing function being the virtual received wavefield, created when the downgoing focusing function acts as the source. This results in three imaging schemes, one of which allows individual reflectors chosen to be imaged. These methods provide images with certain advantages over current reverse-time migration methods, such as fewer artifacts, and artifacts that occur in different locations. We show that one of these images can be combined with standard images to remove acquisition and multiple-related artifacts. We demonstrate our methods with acoustic and elastic synthetic examples. Keywords: RTM, acoustic, imagingPermalink: https://doi.org/10.1190/sbgf2017-265FiguresReferencesRelatedDetailsCited bySource wavelet correction for practical Marchenko imaging: A sub‐salt field‐data example from the Gulf of Mexico25 June 2019 | Geophysical Prospecting, Vol. 67, No. 8 15th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 31 July-3 August 2017ISSN (online):2159-6832Copyright: 2017 Pages: 1876 publication data© 2017 Published in electronic format with permission by the Brazilian Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished Online: 03 Aug 2017 CITATION INFORMATION Carlos Alberto da Costa Filho, Giovanni Angelo Meles, and Andrew Curtis, (2017), Imaging with Marchenko focusing functions in acoustic and elastic media, SEG Global Meeting Abstracts : 1361-1365. https://doi.org/10.1190/sbgf2017-265 Plain-Language Summary KeywordsRTMacousticimagingPDF DownloadLoading ..." @default.
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• W2770333670 title "Imaging with Marchenko focusing functions in acoustic and elastic media" @default.
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