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- W2319326105 abstract "PreviousNext No Access13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 20134D simultaneous pre-stack inversion in an offshore carbonate reservoirAuthors: Florine VillaudyNathalie LucetMarcos H. GrochauPedro M. BenacCarlos E. B. S. AbreuFlorine VillaudyBeicip-FranlabSearch for more papers by this author, Nathalie LucetBeicip-FranlabSearch for more papers by this author, Marcos H. GrochauPetrobrasSearch for more papers by this author, Pedro M. BenacPetrobrasSearch for more papers by this author, and Carlos E. B. S. AbreuPetrobrasSearch for more papers by this authorhttps://doi.org/10.1190/sbgf2013-211 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract This paper emphasizes the added value of a 4D joint elastic inversion for a multi-disciplinary interpretation of a carbonate reservoir, aiming at delineating and better understanding reservoir changes induced by the production. Although well developed in the oil industry to optimize production in siliciclastics reservoirs, monitoring seismic changes induced by hydrocarbon production in carbonate reservoirs still remains a challenging task. A 4D joint elastic inversion methodology is described and applied on seismic data recorded in 1987, 2002 and 2010, 4D processed in pairs, over an Albian carbonate reservoir in the Campos Basin, offshore Brazil. Directly inspired from the single dataset pre-stack inversion methodology, the 4D joint inversion process provides as final result optimal models of P- and S-wave impedances consistent with all input data and expressed in the reference time basis. In order to initiate a multi-disciplinary interpretation involving geologists, geophysicists and reservoir engineers, P- and S-impedance variations (ΔIP and ΔIS) attributes are generated to highlight 4D seismic anomalies, likely due to production. Despite the moderate acquisition repeatability and the presence of three siliciclastic reservoirs under production above the targeted carbonate reservoir, results above expectations are obtained. The case study presented in this paper demonstrates the adequacy of the proposed methodology for this carbonate reservoir, opening the perspective of applying time-lapse seismic inversion to even stiffer carbonates (e.g. Aptians “pre-salt”). Keywords: 4D, carbonate, elastic, inversion, seismic, monitoring, time-lapsePermalink: https://doi.org/10.1190/sbgf2013-211FiguresReferencesRelatedDetailsCited ByFeasibility of CO2 plume detection using 4D seismic: CO2CRC Otway Project case study — Part 1: Rock-physics modelingEva Caspari, Roman Pevzner, Boris Gurevich, Tess Dance, Jonathan Ennis-King, Yildiray Cinar, and Maxim Lebedev29 May 2015 | GEOPHYSICS, Vol. 80, No. 4Wave attenuation in partially saturated porous rocks — New observations and interpretations across scalesThe Leading Edge, Vol. 33, No. 6 13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 2013ISSN (online):2159-6832Copyright: 2013 Pages: 2001 publication data© 2013 Published in electronic format with permission by the Brazilian Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished: 09 Jan 2014 CITATION INFORMATION Florine Villaudy, Nathalie Lucet, Marcos H. Grochau, Pedro M. Benac, and Carlos E. B. S. Abreu, (2013), 4D simultaneous pre-stack inversion in an offshore carbonate reservoir, SEG Global Meeting Abstracts : 1019-1023. https://doi.org/10.1190/sbgf2013-211 Plain-Language Summary Keywords4Dcarbonateelasticinversionseismicmonitoringtime-lapsePDF DownloadLoading ..." @default.
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- W2319326105 title "4D simultaneous pre-stack inversion in an offshore carbonate reservoir" @default.
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