IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Analysis of acoustic emission events induced during stress unloading of a hydraulic fractured Longmaxi shale sample
Zhai, Hongyu1,2; Chang, Xu1,2; Wang, Yibo1,2; Lei, Xinglin3; Xue, Ziqiu4
2020-06-01
Source PublicationJOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
ISSN0920-4105
Volume189Pages:15
AbstractIn shale-gas exploitation, hydraulic fracturing technology is essential to successfully create complex fracture networks in formations. To investigate the dynamic fracturing process, we performed a hydraulic fracturing experiment on a Longmaxi shale sample in the laboratory. After hydrofracturing, hundreds of induced acoustic emission (AE) events were recorded during the stress unloading procedure. At the same time, the high-pressure water stored in the sample fracture network was also discharged. The fracture network inside the fractured sample was studied using medical X-ray computed tomography (CT) scanning technology. Then, the locations and characteristics of the shale failure were analyzed by localizing and inversing the source mechanism of the AE events. Furthermore, the inversion results were verified by comparing with the scanned internal cracks images. According to the source mechanism inversion result, the induced AE events mainly stemmed from the dilatation or compression of fractures and the shear slip of shale along the fracture plane. Finally, the influence of formation attenuation error (underestimated or overestimated attenuation value) on source mechanism inversion results were quantitatively analyzed. It was confirmed that the shear component of the AE event was more sensitive than the volume component to medium attenuation change, especially when the attenuation value was overestimated.
DOI10.1016/j.petrol.2020.106990
Funding OrganizationNational Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS KeywordMOMENT TENSORS ; MECHANICAL-PROPERTIES ; SICHUAN BASIN ; ROCKS ; EVOLUTION ; FAILURE ; COAL
Language英语
Funding ProjectNational Natural Science Foundation of China for Young Scientists[41704140] ; National Natural Science Foundation of China[41974156] ; China Postdoctoral Science Foundation[2017M620894]
Funding OrganizationNational Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Petroleum
WOS IDWOS:000522796600034
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95519
Collection页岩气与地质工程院重点实验室
Corresponding AuthorChang, Xu
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Cent 7,Higashi 1-1, Tsukuba, Ibaraki 3058567, Japan
4.Res Inst Innovat Technol Earth, 9-2 Kizugawadai, Kizu, Kyoto 6190292, Japan
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhai, Hongyu,Chang, Xu,Wang, Yibo,et al. Analysis of acoustic emission events induced during stress unloading of a hydraulic fractured Longmaxi shale sample[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,189:15.
APA Zhai, Hongyu,Chang, Xu,Wang, Yibo,Lei, Xinglin,&Xue, Ziqiu.(2020).Analysis of acoustic emission events induced during stress unloading of a hydraulic fractured Longmaxi shale sample.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,189,15.
MLA Zhai, Hongyu,et al."Analysis of acoustic emission events induced during stress unloading of a hydraulic fractured Longmaxi shale sample".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 189(2020):15.
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