Prediction of deep carbonate fracture based on wide-azimuth seismic data

PreviousNext No AccessSEG 2020 Workshop: Broadband and Wide-azimuth Deepwater Seismic Technology, Beijing, China, 13–15 July 2020Prediction of deep carbonate fracture based on wide-azimuth seismic dataAuthors: Xu MinLiang HongWang LanyingTang XuleiWang ZhengLei KaiqiangDeng WeiFang LeiXu MinBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, Liang HongBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, Wang LanyingBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, Tang XuleiBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, Wang ZhengBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, Lei KaiqiangBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, Deng WeiBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this author, and Fang LeiBGP Southwest Geophysical Research Institute, CNPC, Chengdu, ChinaSearch for more papers by this authorhttps://doi.org/10.1190/bwds2020_21.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Anisotropy is prevalent in almost all reservoir, but in different levels. The amplitude of P-wave varies with azimuth when it pass parallel or vertically whith fractures in anisotropic media, so we can study the change of the attributes of seismic data. Azimuth angle of seismic should be wide enough to predict fractures of reservoir more accurately. The conventional fracture prediction technology is mostly based on the difference of amplitude between each point and the surrounding points. But the difference may be caused by lateral change of lithology. In this research, we study wide azimuth coherence technology. We can use the characteristics of amplitude changing to calculation azimuth coherence volume. Compared with post stack coherence, it reduces the multiplicity of solutions and predicts smaller fractures. Compared with the commonly used AVAZ technology, this method can predict both large and small scale fractures with higher accuracy. Good application effect has been achieved, which provides an important basis for well location deployment. This method has achieved good application results and provided important basis for well deployment. Keywords: fracture, anisotropy, wide azimuth, migration, carbonatePermalink: https://doi.org/10.1190/bwds2020_21.1FiguresReferencesRelatedDetails SEG 2020 Workshop: Broadband and Wide-azimuth Deepwater Seismic Technology, Beijing, China, 13–15 July 2020ISSN (online):2159-6832Copyright: 2020 Pages: 155 publication data© 2020 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 09 Nov 2020 CITATION INFORMATION Xu Min, Liang Hong, Wang Lanying, Tang Xulei, Wang Zheng, Lei Kaiqiang, Deng Wei, and Fang Lei, (2020), "Prediction of deep carbonate fracture based on wide-azimuth seismic data," SEG Global Meeting Abstracts : 77-80. https://doi.org/10.1190/bwds2020_21.1 Plain-Language Summary Keywordsfractureanisotropywide azimuthmigrationcarbonatePDF DownloadLoading ...