Reverse time migration of prism waves for salt flank delineation

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2013Reverse time migration of prism waves for salt flank delineationAuthors: Wei DaiGerard T. SchusterWei DaiWesternGecoSearch for more papers by this author and Gerard T. SchusterKing Abdullah U of Science and TechnologySearch for more papers by this authorhttps://doi.org/10.1190/segam2013-0414.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail 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. Permalink: https://doi.org/10.1190/segam2013-0414.1FiguresReferencesRelatedDetailsCited ByElastic least-squares reverse time migration of steeply dipping structures using prismatic reflectionsZheng Wu, Yuzhu Liu, and Jizhong Yang24 February 2022 | GEOPHYSICS, Vol. 87, No. 3Optimum designs for 2-D and 3-D seismic surveys via modeling and reverse-time migration: Pierce Junction Salt Dome, Texas24 September 2021 | Surveys in Geophysics, Vol. 42, No. 5Elastic full-waveform inversion of steeply dipping structures with prismatic wavesZheng Wu, Yuzhu Liu, and Jizhong Yang15 June 2021 | GEOPHYSICS, Vol. 86, No. 4Improving the Image Quality of High-Angle Interfaces and Subsalt Sediments Using High-Order Scattered Seismic Waves30 April 2021 | Pure and Applied Geophysics, Vol. 178, No. 5Use of prismatic waves in full-waveform inversion with the exact HessianYuzhu Liu, Zheng Wu, Hao Kang, and Jizhong Yang8 May 2020 | GEOPHYSICS, Vol. 85, No. 4Reverse time migration of transmitted wavefields for salt boundary imagingChris Willacy and Maksym Kryvohuz12 February 2019 | GEOPHYSICS, Vol. 84, No. 2Joint least-squares reverse time migration of primary and prismatic wavesJizhong Yang, Yuzhu Liu, Yunyue Elita Li, Arthur Cheng, Liangguo Dong, and Yue Du21 December 2018 | GEOPHYSICS, Vol. 84, No. 1Prism waves for imaging steep geologic features and sediment terminations against salt flanks: Examples from the Gulf of MexicoKonstantin N. Kudin, Maksym Kryvohuz, Henning Kuehl, Michael F. Selim, William H. Butler, Christian Theriot, and Ailin Yin7 March 2018 | The Leading Edge, Vol. 37, No. 3Chapter 14: Resolution Limits for Wave Equation Imaging16 June 2017 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 Wei Dai and Gerard T. Schuster, (2013), "Reverse time migration of prism waves for salt flank delineation," SEG Technical Program Expanded Abstracts : 3861-3865. https://doi.org/10.1190/segam2013-0414.1 Plain-Language Summary PDF DownloadLoading ...