3D SRME on OBS data using waveform multiple modelling

PreviousNext No AccessSEG Technical Program Expanded Abstracts 20063D SRME on OBS data using waveform multiple modellingAuthors: A. PicaM. ManinP. Y. GrangerD. MarinE. SuaudeauB. DavidG. PoulainP. h. HerrmannA. PicaCGG FranceSearch for more papers by this author, M. ManinCGG FranceSearch for more papers by this author, P. Y. GrangerCGG FranceSearch for more papers by this author, D. MarinCGG FranceSearch for more papers by this author, E. SuaudeauCGG FranceSearch for more papers by this author, B. DavidCGG FranceSearch for more papers by this author, G. PoulainCGG FranceSearch for more papers by this author, and P. h. HerrmannCGG FranceSearch for more papers by this authorhttps://doi.org/10.1190/1.2370074 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Surface‐consistent data auto‐convolution involved in the modeling of surface related multiple reflections (SRME) does not apply easily to Ocean Bottom Survey data unless surface data is available along the OBS shooting locations, or if the receiver distribution allows for wavefield continuation. For cases where only OBC data are available, and in situations with extremely sparse receiver distributions, 3D SRME can still be achieved by using 3D wavefield multiple modeling (WFM SRME). With this method, surface‐related multiples are built by modeling the bounces of primaries and multiples within a migrated section representing any arbitrary 3D reflectivity model. Unfortunately, migration of up‐going waves from OBS data suffers from the sparseness of the receiver distribution, thus resulting in blanks along the seafloor reconstruction because of the lack of fold and inapplicability of the imaging condition. Instead, down‐going first‐order multiples can be easily separated from the data after calibration and P‐Z differentiation. This data can then be migrated by using the image of the receiver location with respect to the surface of the sea. This image is unambiguous, and allows for a better illumination and imaging of the seafloor, suitable for WFM SRME. This migration method, followed by WFM SRME, has been successfully applied on real OBS (node) data. Results are shown below..Permalink: https://doi.org/10.1190/1.2370074FiguresReferencesRelatedDetailsCited ByVector-acoustic reverse time migration of Volve ocean-bottom cable data set without up/down decomposed wavefieldsGEOPHYSICS, Vol. 80, No. 4Elastic reverse-time migration with OBS multiplesYuting Duan* and Paul Sava5 August 2014Model-based water-layer Demultiple (MWD) for shallow water: from streamer to OBSHongzheng Jin and Ping Wang25 October 2012Wide-area imaging from OBS multiplesGEOPHYSICS, Vol. 74, No. 6Wave equation based internal multiple modeling in 3DAntonio Pica and Laurie Delmas15 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 A. Pica, M. Manin, P. Y. Granger, D. Marin, E. Suaudeau, B. David, G. Poulain, and P. h. Herrmann, (2006), "3D SRME on OBS data using waveform multiple modelling," SEG Technical Program Expanded Abstracts : 2659-2663. https://doi.org/10.1190/1.2370074 Plain-Language Summary PDF DownloadLoading ...