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• W2320736224 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2012Hydrocarbon detection for cavern carbonate reservoir using low-and-high-frequency anomalies in spectral decompositionAuthors: Li FangyuLi YandongLu WenkaiZhang YanZheng XiaodongLi FangyuTsinghua UniversitySearch for more papers by this author, Li YandongResearch Institute of Petroleum E&D, PetroChinaSearch for more papers by this author, Lu WenkaiTsinghua UniversitySearch for more papers by this author, Zhang YanResearch Institute of Petroleum E&D, PetroChinaSearch for more papers by this author, and Zheng XiaodongResearch Institute of Petroleum E&D, PetroChinaSearch for more papers by this authorhttps://doi.org/10.1190/segam2012-0473.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Low-frequency shadow is generally used as a hydrocarbon indicator in the application of spectral decomposition. Recently, it was pointed out that carbonate reservoir often exhibits high-frequency anomaly. In the practice on cavern carbonate reservoir characterization using high-resolution deconvolutive short-time Fourier transform (DSTFT) based spectral decomposition, we encountered both low-frequency shadows and high-frequency anomalies associated with high porosity and relatively thick cavern carbonate reservoirs. The low-frequency shadows usually occur beneath cavern reservoirs, while the vertical distribution of the high-frequency anomalies is in reasonably good agreement with the distribution of the cavern carbonate reservoir revealed by the impedance inversion profile. In other words, spectral anomalies could roughly delineate the top and bottom of the cavern carbonate reservoir. For more than 20 oil wells which encounter cavern carbonate reservoirs in target area, Tarim Basin, Northwest China, we observed low-frequency shadows and high-frequency anomalies. Our work indicates that the combination of low-frequency shadows and high-frequency anomalies could be used as a new hydrocarbon indicator for cavern carbonate reservoirs. And we also discuss its existing conditions. Permalink: https://doi.org/10.1190/segam2012-0473.1FiguresReferencesRelatedDetailsCited ByFrequency-dependent bright spots on Q-compensated ZVSP stacks at and below highly attenuated hydrocarbon-bearing reservoir — A case studySayyid Suhail Ahmad, Oscar Augusto Barrios, and Bob Engelman1 September 2021Application of the local maximum synchrosqueezing transform for seismic dataDigital Signal Processing, Vol. 110Inverse spectral decomposition using an lp-norm constraint for the detection of close geological anomalies20 September 2020 | Petroleum Science, Vol. 17, No. 6The significance of karst unconformities on overlying resource shales: Lessons learned from the Devonian Woodford Formation applied to the Permian Wolfcamp ShaleJing Zhang and Roger Slatt15 October 2019 | Interpretation, Vol. 7, No. 4Sparse spectral attributes to detect hydrocarbons: A case study from deep dolomite reservoirsJianhu Gao, Bingyang Liu, Shengjun Li, and Hongqiu Wang18 July 2019 | Interpretation, Vol. 7, No. 3Robust time-frequency analysis of seismic data using general linear chirplet transformYucheng Huang, Xiaodong Zheng, Yanting Duan, and Yi Luan5 April 2018 | GEOPHYSICS, Vol. 83, No. 3Extraction of strong beadlike reflections for a carbonate-karst reservoir using a tensor-based adaptive mathematical morphology18 August 2017 | Journal of Geophysics and Engineering, Vol. 14, No. 5Hydrocarbon detection for Ordovician carbonate reservoir using amplitude variation with offset and spectral decompositionYandong Li, Lijuan Zhang, Daxing Wang, Songqun Shi, and Xiaojie Cui18 July 2016 | Interpretation, Vol. 4, No. 3 SEG Technical Program Expanded Abstracts 2012ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2012 Pages: 4609 Publisher:Society of Exploration Geophysicists HistoryPublished: 25 Oct 2012 CITATION INFORMATION Li Fangyu, Li Yandong, Lu Wenkai, Zhang Yan, and Zheng Xiaodong, (2012), Hydrocarbon detection for cavern carbonate reservoir using low-and-high-frequency anomalies in spectral decomposition, SEG Technical Program Expanded Abstracts : 1-5. https://doi.org/10.1190/segam2012-0473.1 Plain-Language Summary PDF DownloadLoading ..." @default.
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• W2320736224 title "Hydrocarbon detection for cavern carbonate reservoir using low-and-high-frequency anomalies in spectral decomposition" @default.
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