Foothills land data imaging with reverse time migration in angle domain

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2017Foothills land data imaging with reverse time migration in angle domainAuthors: Mingqiu LuoChanghua ZhangJianhua YuNing DongChenhong ZhuWeiya XuYequan ChenMingqiu LuoSinopec Tech HoustonSearch for more papers by this author, Changhua ZhangSinopec Tech HoustonSearch for more papers by this author, Jianhua YuSinopec Tech HoustonSearch for more papers by this author, Ning DongSinopec Tech HoustonSearch for more papers by this author, Chenhong ZhuSinopec Petroleum Exploration & Production Research InstituteSearch for more papers by this author, Weiya XuSinopec Petroleum Exploration & Production Research InstituteSearch for more papers by this author, and Yequan ChenSinopec Petroleum Exploration & Production Research InstituteSearch for more papers by this authorhttps://doi.org/10.1190/segam2017-17780912.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Reverse time migration (RTM) technology provide a powerful tool for subsurface complex structure imaging. In the past few years, we have developed GPU based RTM and RTM angle gather technology for acoustic isotropic and anisotropic media, including VTI, HTI, TTI, orthorhombic and tilted orthorhombic media. With the efficient algorithm implemented based on an optimized Laplacian optical flow, RTM angle gathers is suitable for processing large 3D dataset. RTM angle gathers make it possible for geophysicist to take fully advantage of seismic information for subsurface complex structure imaging, velocity model building, and seismic attribute analysis for reservoir study. For the land seismic data with foothills, the imaging processing is a big challenge due to the complicated wave phenomena can’t being processed with simple assumption based imaging methods. As the most accurate imaging method up to now, Reverse time migration with angle gather could be the best tool to handle the imaging for land data with foothills. In this paper, based on the elastic foothill model with strong velocity contrast and topography from SEG Advanced Modeling (SEAM) Project, a synthetic elastic seismic dataset is generated to investigate RTM and RTM angle gather capabilities in handling the image of foothill geological area. Numerical examples and field data examples demonstrate that our RTM technology is capable of yielding accurate imaging for complicated near-surface condition and complex subsurface structure, and RTM angle gather can further improve the image quality. Presentation Date: Monday, September 25, 2017 Start Time: 3:05 PM Location: Exhibit Hall C/D Presentation Type: POSTER Keywords: depth migration, finite difference, migration, reverse-timePermalink: https://doi.org/10.1190/segam2017-17780912.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2017ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2017 Pages: 6093 publication data© 2017 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 17 Aug 2017 CITATION INFORMATION Mingqiu Luo, Changhua Zhang, Jianhua Yu, Ning Dong, Chenhong Zhu, Weiya Xu, and Yequan Chen, (2017), "Foothills land data imaging with reverse time migration in angle domain," SEG Technical Program Expanded Abstracts : 4691-4695. https://doi.org/10.1190/segam2017-17780912.1 Plain-Language Summary Keywordsdepth migrationfinite differencemigrationreverse-timePDF DownloadLoading ...