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• W4291718274 abstract "PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergyResearch of high-precision depth interpretation method for low-amplitude offshore reservoir and its application in C oilfield, Bohai Bay BasinAuthors: Wenbin LiJianli WangZhenglong ZhangHeng ZhangWenbin Li CNOOC China Limited, Tianjin BranchSearch for more papers by this author, Jianli Wang CNOOC China Limited, Tianjin BranchSearch for more papers by this author, Zhenglong Zhang CNOOC China Limited, Tianjin BranchSearch for more papers by this author, and Heng Zhang CNOOC China Limited, Tianjin BranchSearch for more papers by this authorhttps://doi.org/10.1190/image2022-3751098.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract As we all know, low-amplitude reservoirs always have an oil column height less than 10m, the development effectiveness of which is determined by the accuracy of depth prediction to a large extent. And the situation becomes much more serious when a low-amplitude reservoir is offshore at the same time, where few exploration wells exist and development wells cluster in distribution with few logging curves. However, traditional methods always fail in these areas due to fast lateral velocity change, poor quality of seismic velocity, time-depth conversion only based on velocity interpolation of several existing wells, and the lack of constraint information. Aiming at this problem, we present a high-precision depth interpretation method for low-amplitude reservoirs to make the development feasible and effective. This method makes use of prestack seismic data, exploration wells, development wells, geological layers, and sedimentary information in the meantime and is carried out in depth domain directly. In process of depth predicting, edge detection result at horizontal wells is first proposed into 3D seismic volume correction in depth domain to improve precision, which is considered to be a new kind of constraint information. Results of real data processing in C oilfield show the velocity model and predicted depth based on our method have a better precision even in abnormal areas. Our method is widely applicable to the study of low-amplitude reservoirs and will help the understanding and interpretation of seismic data in these areas greatly.Note: This paper was accepted into the Technical Program but was not presented at IMAGE 2022 in Houston, Texas. Keywords: high-precision depth interpretation, low-amplitude reservoirs, depth domain, edge detection, horizontal wellsPermalink: https://doi.org/10.1190/image2022-3751098.1FiguresReferencesRelatedDetails Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Wenbin Li, Jianli Wang, Zhenglong Zhang, and Heng Zhang, (2022), Research of high-precision depth interpretation method for low-amplitude offshore reservoir and its application in C oilfield, Bohai Bay Basin, SEG Technical Program Expanded Abstracts : 1408-1412. https://doi.org/10.1190/image2022-3751098.1 Plain-Language Summary Keywordshigh-precision depth interpretationlow-amplitude reservoirsdepth domainedge detectionhorizontal wellsPDF DownloadLoading ..." @default.
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• W4291718274 title "Research of high-precision depth interpretation method for low-amplitude offshore reservoir and its application in C oilfield, Bohai Bay Basin" @default.
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