Improving old seismic using full-wavefield inversion and broadband processing: Imaging complex structures under shallow gas

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2018Improving old seismic using full-wavefield inversion and broadband processing: Imaging complex structures under shallow gasAuthors: Vikas GudipatiScott JaynesSunwoong LeeJoseph ReillySpyros LazaratosRamesh NeelamaniAlex MartinezArmand ZulfitriFayaz OnnChris ShawAhmad Riza GhazaliTugrul KonukAdbel Ashraf A. KhalilNguyen Huu NghiVikas GudipatiExxonMobilSearch for more papers by this author, Scott JaynesExxonMobilSearch for more papers by this author, Sunwoong LeeExxonMobilSearch for more papers by this author, Joseph ReillyExxonMobilSearch for more papers by this author, Spyros LazaratosExxonMobilSearch for more papers by this author, Ramesh NeelamaniExxonMobilSearch for more papers by this author, Alex MartinezExxonMobilSearch for more papers by this author, Armand ZulfitriExxonMobilSearch for more papers by this author, Fayaz OnnExxonMobilSearch for more papers by this author, Chris ShawExxonMobilSearch for more papers by this author, Ahmad Riza GhazaliPETRONAS CarigaliSearch for more papers by this author, Tugrul KonukPETRONAS CarigaliSearch for more papers by this author, Adbel Ashraf A. KhalilPETRONAS CarigaliSearch for more papers by this author, and Nguyen Huu NghiMalaysia Petroleum ManagementSearch for more papers by this authorhttps://doi.org/10.1190/segam2018-2997131.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractA case study is presented wherein broadband processing, FWI, and Q migration have been used to address poor imaging due to complex-overburden and amplitude-loss. The area of study is a producing oil field in offshore Malaysia, where seismic imaging was impacted by extensive shallow gas accumulations. OBC and streamer data were used to produce high-resolution subsurface velocity models via FWI. Our results show that modern processing methods combined with FWI can provide significant imaging uplift and reduce interpretation uncertainty, even with seismic data that are decades-old.Presentation Date: Wednesday, October 17, 2018Start Time: 9:20:00 AMLocation: Poster Station 7Presentation Type: PosterKeywords: full-waveform inversion, broadband, gas, attenuation, shallowPermalink: https://doi.org/10.1190/segam2018-2997131.1FiguresReferencesRelatedDetailsCited byIntegrated velocity and attenuation model building: Sakhalin case studySirui Tan, Gboyega Ayeni, Jaewoo Park, Mehdi Aharchaou, Peter Traynin, William Burnett, Anatoly Baumstein, Carey Marcinkovich, Sunwoong Lee, Arjun Srinivasan, Rishi Bansal, Eric Wildermuth, Robert Lory, JJ Bishop, and Mark Nell1 March 2022 | The Leading Edge, Vol. 41, No. 3Integrated processing and interpretation to image and derisk a carbonate reservoir clouded by shallow gas — A case study from offshore VietnamJaewoo Park, Craig Hyslop, Da Zhou, Arjun Srinivasan, Patricia Montoya, Debra Carlo, Mike Lahey, William A. Burnett, Alecia Wawrzynski, Gboyega Ayeni, William Espegren, Spyros Lazaratos, Brandon M. Phillips, Trung Tâm Lê, Thanh Hà Mai, Văn Thanh Đỗ, Đu'o'ng Trung Nguyễn, Thị Minh Huệ Đặng, and Duy Anh Nguyễn3 May 2021 | The Leading Edge, Vol. 40, No. 5Reducing seismic reflector distortion beneath gas clouds in the Malay Basin using full-wavefield imaging approachesAhmad Riza Ghazali, Muhammad Hafizal Mad Zahir, Muhammad Faizal Abdul Rahim, Kefeng Xin, Farah Syazana Dzulkefli, and Junxiao Li3 August 2020 | The Leading Edge, Vol. 39, No. 8 SEG Technical Program Expanded Abstracts 2018ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2018 Pages: 5520 publication data© 2018 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 27 Aug 2018 CITATION INFORMATION Vikas Gudipati, Scott Jaynes, Sunwoong Lee, Joseph Reilly, Spyros Lazaratos, Ramesh Neelamani, Alex Martinez, Armand Zulfitri, Fayaz Onn, Chris Shaw, Ahmad Riza Ghazali, Tugrul Konuk, Adbel Ashraf A. Khalil, and Nguyen Huu Nghi, (2018), "Improving old seismic using full-wavefield inversion and broadband processing: Imaging complex structures under shallow gas," SEG Technical Program Expanded Abstracts : 1349-1353. https://doi.org/10.1190/segam2018-2997131.1 Plain-Language Summary Keywordsfull-waveform inversionbroadbandgasattenuationshallowPDF DownloadLoading ...