Evaluation of downhole hydraulic fracturing by sonic attenuation logging

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2018Evaluation of downhole hydraulic fracturing by sonic attenuation loggingAuthors: Sheng-Qing LeeHuan-Ran LiXiao-Ming TangZhen LiXi-Hao GuYuan-Da SuChun-Xi ZhuangSheng-Qing LeeSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this author, Huan-Ran LiSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this author, Xiao-Ming TangSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this author, Zhen LiSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this author, Xi-Hao GuSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this author, Yuan-Da SuSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this author, and Chun-Xi ZhuangSchool of Geosciences, China University of Petroleum (East China)Search for more papers by this authorhttps://doi.org/10.1190/segam2018-2998095.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractThe downhole hydraulic fracturing process, besides fracturing formation rocks, generates small, secondary fractures around the borehole. This study demonstrates that the near-borehole fractures can cause significant attenuation in the sonic logging waveforms acquired after fracturing. The attenuation can be robustly estimated using a median frequency shift (MFS) method. Comparison of the attenuation of the fracturing interval with that of an unfractured interval, or with that of the same interval before fracturing allows for evaluating the result of fracturing and the fracture extension along the borehole. The application of the method is demonstrated with field data examples and validated by comparing results from existing borehole techniques like the cross-dipole shear-wave logging and acoustic traveltime tomography. The modeling and field example indicate that attenuation can be an effective mean for hydraulic fracture evaluation.Presentation Date: Monday, October 15, 2018Start Time: 1:50:00 PMLocation: 212A (Anaheim Convention Center)Presentation Type: OralKeywords: borehole acoustics, attenuation, hydraulic fracturing, QPermalink: https://doi.org/10.1190/segam2018-2998095.1FiguresReferencesRelatedDetails 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 Sheng-Qing Lee, Huan-Ran Li, Xiao-Ming Tang, Zhen Li, Xi-Hao Gu, Yuan-Da Su, and Chun-Xi Zhuang, (2018), "Evaluation of downhole hydraulic fracturing by sonic attenuation logging," SEG Technical Program Expanded Abstracts : 689-693. https://doi.org/10.1190/segam2018-2998095.1 Plain-Language Summary Keywordsborehole acousticsattenuationhydraulic fracturingQPDF DownloadLoading ...