Effect of the intermediate principal stress on hydraulic fracturing in granite: an experimental study
文献类型：期刊论文
| 作者 | Pan, Peng-Zhi1,2,3; Wu, Zhen-Hua2,3; Yan, Fei3; Ji, Wei-Wei3; Miao, Shu-Ting2,3; Wang, Zhaofeng2,3 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2020 |
| 卷号 | 79期号:1页码:18 |
| 关键词 | Intermediate principal stress Hydraulic fracturing Hard rock Acoustic emission Failure process |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-019-8760-8 |
| 英文摘要 | The fracturing behavior of hard rock under fluid pressure is affected by maximum, minimum, and intermediate principal stress. To investigate the effect of the intermediate principal stress on the hydraulic fracturing behavior, including the fracturing pressure, fracture pattern, fluid pressure evolution, etc., a series hydraulic fracturing experiments of granite under true triaxial compression conditions was conducted. Constant minor and major principal stresses (10 and 30 MPa, respectively) and variational intermediate principal stresses (10, 15, 20, and 25 MPa) were considered. Acoustic emission was used to monitor the hydraulic fracturing process. The effect of different intermediate principal stresses, i.e., various horizontal principal stresses, on the fluid fracturing pressure and failure pattern was studied. With higher intermediate principal stress, the hydraulic pressure fluctuates in the hydraulic fracturing process, whereas at lower intermediate principal stress, the pressure fluctuation phase becomes shorter. The higher intermediate principal stress makes the fracture plane simpler, straighter, and more planar. When the intermediate principal stress equals to the minimum principal stress, the fracture plane tends to be non-planar. In this case, the hydraulic fracture is mainly influenced by heterogeneity of the rocks. With the increase of intermediate principal stress, the formation breakdown pressure of granite decreases, which is different from the effect of minor principal stress. A modified criterion is proposed to reflect the influence of intermediate principal stress on the formation breakdown pressure. |
| 资助项目 | State Key Research Development Program of China[2017YFC0804203] ; National Nature Science Foundation of China[51621006] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-DQC029] ; international cooperation project of Chinese Academy of Sciences[115242KYSB20160024] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000511846500010 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23416]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yan, Fei |
| 作者单位 | 1.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Peng-Zhi,Wu, Zhen-Hua,Yan, Fei,et al. Effect of the intermediate principal stress on hydraulic fracturing in granite: an experimental study[J]. ENVIRONMENTAL EARTH SCIENCES,2020,79(1):18. |
| APA | Pan, Peng-Zhi,Wu, Zhen-Hua,Yan, Fei,Ji, Wei-Wei,Miao, Shu-Ting,&Wang, Zhaofeng.(2020).Effect of the intermediate principal stress on hydraulic fracturing in granite: an experimental study.ENVIRONMENTAL EARTH SCIENCES,79(1),18. |
| MLA | Pan, Peng-Zhi,et al."Effect of the intermediate principal stress on hydraulic fracturing in granite: an experimental study".ENVIRONMENTAL EARTH SCIENCES 79.1(2020):18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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