Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores
文献类型：期刊论文
| 作者 | Lin, Chong2; Mao, Jincheng2; He, Jianming1,3; Li, Xiao1,3; Zhao, Jinzhou2 |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 12期号:22页码:9 |
| 关键词 | Aperture closure Aperture evolution Fracture morphology Hydraulic fracture Granite |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-019-4887-x |
| 英文摘要 | Hydraulic fracturing is assumed to be a potentially important technology for the improvement of heat exchange rate in the exploitation and stimulation of geothermal resources. The propagation characteristics and aperture evolution of hydraulic fractures in enhanced geothermal system (EGS) are very important for the evaluation and optimization of field fracturing operation. In this article, we employed a series of hydraulic fracturing experiments with heterogeneous granite cores. The experimental monitoring demonstrates the different stages in fracturing treatment in granite cores, including initiation, propagation, and closure stages. The results indicate that, with the increase of confining pressure, the breakdown pressure increases, the maximum fracture width decreases, and the closure of fracture increases. The injection rates do not affect the breakdown pressure obviously. In addition, the fracture morphology was also illustrated by the detection using microscope and X-ray computer tomography (CT). Based on the observation of fractures and the experimental monitoring results, a pre-proposed model was employed to calculate the fracture aperture during fracturing treatment process. The results emphasize the dominant role of fracture closure in the evolution of fracture evolution process. Larger confining pressure results in larger closure proportion, the closure proportion of the fracture aperture even can exceed 90% when confining pressure is 30 MPa. |
| WOS关键词 | INITIATION ; WIDTH ; SHALE |
| 资助项目 | Sichuan Youth Science & Technology Foundation[2017JQ0010] ; National High Technology Research & Development Program[2016ZX05053] ; Key Fund Project of Educational Commission of Sichuan Province[16CZ0008] ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University)[G201601] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000496449100004 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Sichuan Youth Science & Technology Foundation ; Sichuan Youth Science & Technology Foundation ; National High Technology Research & Development Program ; National High Technology Research & Development Program ; Key Fund Project of Educational Commission of Sichuan Province ; Key Fund Project of Educational Commission of Sichuan Province ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) ; Explorative Project Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95759]  |
| 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 | Lin, Chong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Chong,Mao, Jincheng,He, Jianming,et al. Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores[J]. ARABIAN JOURNAL OF GEOSCIENCES,2019,12(22):9. |
| APA | Lin, Chong,Mao, Jincheng,He, Jianming,Li, Xiao,&Zhao, Jinzhou.(2019).Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores.ARABIAN JOURNAL OF GEOSCIENCES,12(22),9. |
| MLA | Lin, Chong,et al."Propagation characteristics and aperture evolution of hydraulic fractures in heterogeneous granite cores".ARABIAN JOURNAL OF GEOSCIENCES 12.22(2019):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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