Imaging complex structures with separated up- and down-going wavefields

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2014Imaging complex structures with separated up- and down-going wavefieldsAuthors: Alejandro A. Valenciano*Sean CrawleyElena KlochikhinaNizar CheminguiShaoping LuDan N. WhitmoreAlejandro A. Valenciano*Search for more papers by this author, Sean CrawleySearch for more papers by this author, Elena KlochikhinaSearch for more papers by this author, Nizar CheminguiSearch for more papers by this author, Shaoping LuSearch for more papers by this author, and Dan N. WhitmoreSearch for more papers by this authorhttps://doi.org/10.1190/segam2014-1145.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Dual sensor streamers record the total pressure and the particle velocity of the seismic wavefields. They allow the data to be accurately separated into up-going and down-going pressure. These two components can be input to a depth migration that uses primaries and multiples for Separated Wavefield IMaging (SWIM). SWIM increases the surface coverage and subsurface illumination by turning each receiver into a “virtual” source. This principle is independent of the wave equation propagation algorithm, which can be based on one-way or two-way solutions. SWIM with reverse time migration (RTM) better images the steep dips of the data. On the other hand, SWIM using one-way wave equation migration (WEM) provides an efficient alternative for high-resolution high-frequency imaging. Keywords: imaging, migration, multiples, wave equation, reverse-timePermalink: https://doi.org/10.1190/segam2014-1145.1FiguresReferencesRelatedDetailsCited byMigration using sea surface-related multiples: Challenges and opportunitiesShaoping Lu2 August 2021 | GEOPHYSICS, Vol. 86, No. 5Data- and model-domain up/down wave separation for reverse-time migration with free-surface multiples18 June 2020 | Geophysical Journal International, Vol. 223, No. 1Mirror reverse time migration using vertical cable seismic data for methane hydrate explorationEhsan Jamali H., Masafumi Katou, Kenji Tara, Eiichi Asakawa, and Hitoshi Mikada30 October 2019 | GEOPHYSICS, Vol. 84, No. 6Receiver ghost imaging using vertical cable seismic data for methane hydrate explorationEhsan Jamali Hondori, Masafumi Kato, Eiichi Asakawa, and Hitoshi Mikada10 August 2019A deconvolution inverse-scattering imaging condition for RTM separated wavefield imagingSean Crawley, Elena Klochikhina, and Dan Whitmore27 August 2018A new and comprehensive perspective on the role of primaries and multiples in seismic-data processing for structure determination and amplitude analysisArthur B. Weglein27 August 2018A clear example of using multiples to enhance and improve imagingChao Ma and Arthur Weglein1 September 2016Seismic Processing: Data Reconstruction and Multiples Complete Session1 September 2016Multiples: Signal or noise?Arthur B. Weglein30 May 2016 | GEOPHYSICS, Vol. 81, No. 4Wave-equation multiple imaging (WeMi) — Swimming between the flagsPaul Bouloudas31 December 2015 | The Leading Edge, Vol. 35, No. 1Imaging with primaries and free-surface multiples by joint least-squares reverse time migrationMandy Wong, Biondo L. Biondi, and Shuki Ronen23 September 2015 | GEOPHYSICS, Vol. 80, No. 6Multiples can be useful (at times) to enhance imaging, by providing an approximate image of an unrecorded primary, but its always primaries that are migrated or imagedArthur B. Weglein19 August 2015Primaries — The only events that can be migrated and for which migration has meaningArthur B. Weglein2 July 2015 | The Leading Edge, Vol. 34, No. 7 SEG Technical Program Expanded Abstracts 2014ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2014 Pages: 5183 publication data© 2014 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 05 Aug 2014 CITATION INFORMATION Alejandro A. Valenciano*, Sean Crawley, Elena Klochikhina, Nizar Chemingui, Shaoping Lu, and Dan N. Whitmore, (2014), "Imaging complex structures with separated up- and down-going wavefields," SEG Technical Program Expanded Abstracts : 3941-3945. https://doi.org/10.1190/segam2014-1145.1 Plain-Language Summary Keywordsimagingmigrationmultipleswave equationreverse-timePDF DownloadLoading ...