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- W2465484934 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2010Mad Dog TTIRTM: Better than ExpectedAuthors: Jerry BowlingShuo JiDechun LinDean ChergotisBertram NolteDennis YanchakJerry BowlingBP America, Inc.Search for more papers by this author, Shuo JiCGGVeritasSearch for more papers by this author, Dechun LinCGGVeritasSearch for more papers by this author, Dean ChergotisBP America Inc.Search for more papers by this author, Bertram NolteBP America Inc.Search for more papers by this author, and Dennis YanchakBP America Inc.Search for more papers by this authorhttps://doi.org/10.1190/1.3513536 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract In 2009, BP initiated a complete reprocessing of the Mad Dog WATS (wide‐azimuth towed‐streamer) dataset using TTI (tilted transverse isotropy) Pre‐stack Depth Migration (PSDM) technology developed by CGGVeritas. This project would build upon the 2008 VTI (vertical transverse isotropy) model built by CGGVeritas by improving key areas that were imaged poorly. The TTI reprocessing was extremely successful. In fact, the uplift for the subsalt target area was qualitatively larger than the uplift observed between isotropic and VTI. Mad Dog TTI reprocessing further confirmed that by honoring the stratigraphic layering of the geologic structure, a TTI velocity model is a better approximation of the subsurface than both isotropic and VTI models. The Mad Dog WATS data combined with a previously recorded NATS (narrow azimuth towed streamer) dataset allowed the ability to detect and account for anisotropy in different azimuths, which is not possible with a single NATS survey. TTI reverse time migration (RTM) improved the ability to define salt geometry and thereby obtain a good subsalt image. TTI RTM should be considered for future imaging of fields with complex structures such as Mad Dog.Permalink: https://doi.org/10.1190/1.3513536FiguresReferencesRelatedDetailsCited ByFrom TTI to orthorhombic: A case study with multiple WATS/NATS at Mad Dog, Gulf of MexicoSireesh Dadi, Francis Rollins, Kang Fu, Nathalie Mootoo, Qingqing Sun, and Weiping Gou27 August 2018A time-lapse feasibility case study from Mad Dog fieldSamarjit Chakraborty*, Olga Brusova, Stan Davis, Jean-Paul van Gestel, Anita Ai, Chris Walker, and Fran Rollins5 August 2014TTI imaging with multi-wide azimuth data-A case study at Mad Dog, GOMFrancis O. Rollins, Pierre-Olivier Ariston, Jerry Bowling, Weiping Gou, Shuo Ji, and Yunfeng Li19 August 2013Improved subsalt imaging of full azimuth data with tilted orthorhombic PSDMQiaofeng Wu, Yunfeng Li, and Zhengxue Li19 August 2013Using Walkaway Check-Shots for Anisotropic Depth Imaging in Resource PlaysShon Bourgeois, Brian Burgess, Lev Nayvelt, Kenny Coleman, and Steve Peterson26 September 2013Improving Subsalt Images using Tilted-Orthorhombic RTM in Green Canyon, Gulf of MexicoMonica Thomas, Sabaresan Mothi, and Patrick McGill25 October 2012Dirty salt velocity inversion: The road to a clearer subsalt imageShuo Ji, Tony Huang, Kang Fu, and Zhengxue Li21 November 2011 | GEOPHYSICS, Vol. 76, No. 5Anisotropic depth imaging with high fidelity controlled beam migration: A case study in Bohai, offshore ChinaBin Zhou, Joe Zhou, Zhiliang Wang, Yonghe Guo, Yi Xie, and Guoyang Ye25 May 2012Improving atlantis TTI model building: OBN+NATS, prism waves & 3D RTM angle gathersMark Roberts, Timmy Dy, Shuo Ji, Micah Reasnor, and David Shepherd8 August 2011 SEG Technical Program Expanded Abstracts 2010ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2010 Pages: 4453 publication data© 2010 Copyright © 2010 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 21 Oct 2010 CITATION INFORMATION Jerry Bowling, Shuo Ji, Dechun Lin, Dean Chergotis, Bertram Nolte, and Dennis Yanchak, (2010), Mad Dog TTIRTM: Better than Expected, SEG Technical Program Expanded Abstracts : 3313-3317. https://doi.org/10.1190/1.3513536 Plain-Language Summary PDF DownloadLoading ..." @default.
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