Analysis of acoustic emission events induced during stress unloading of a hydraulic fractured Longmaxi shale sample
文献类型：期刊论文
| 作者 | Zhai, Hongyu1,2; Chang, Xu1,2; Wang, Yibo1,2; Lei, Xinglin3; Xue, Ziqiu4 |
| 刊名 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 189页码:15 |
| ISSN号 | 0920-4105 |
| DOI | 10.1016/j.petrol.2020.106990 |
| 英文摘要 | In 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. |
| WOS关键词 | MOMENT TENSORS ; MECHANICAL-PROPERTIES ; SICHUAN BASIN ; ROCKS ; EVOLUTION ; FAILURE ; COAL |
| 资助项目 | National Natural Science Foundation of China for Young Scientists[41704140] ; National Natural Science Foundation of China[41974156] ; China Postdoctoral Science Foundation[2017M620894] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000522796600034 |
| 出版者 | ELSEVIER |
| 资助机构 | 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 ; 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 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95519]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Chang, Xu |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：地质与地球物理研究所
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