Experimental study of hydraulic fracturing for deep shale reservoir
文献类型：期刊论文
| 作者 | Zhou, Zai-Le1,2; Hou, Zhen-Kun3; Guo, Yin-Tong4; Zhao, Hui1,2; Wang, Di5; Qiu, Guo-Zhou4; Guo, Wu-Hao4 |
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2024-08-22 |
| 卷号 | 307页码:20 |
| 关键词 | Fracturing experiments High tri-axial stress Complex fracture Fracture toughness |
| ISSN号 | 0013-7944 |
| DOI | 10.1016/j.engfracmech.2024.110259 |
| 英文摘要 | Compared with shallow reservoirs of shale gas, the high stress and plasticity of shale reservoirs under deep conditions significantly impact the propagation of hydraulic fractures. The study investigates the characteristics of hydraulic fracture propagation in deep shale reservoirs by conducting true triaxial fracturing tests at different stress levels and combinations under circumstances close to the original in-situ stress of the target reservoir. Specifically, it includes comparative experiments under high and low-stress levels, variable stress combinations with equal stress differences, and experiments on the influence of maximum and minimum horizontal in-situ stress, respectively. Through a series of experimental studies, it has been shown that the fracture roughness is relatively low at high stress levels. Fractures can still generate complex and multiple fractures when subject to high-stress conditions. Amongst, natural fissures or weak surfaces still dominate the complex fracture morphology. In the case of a higher in-situ stress level with the same stress difference value brings about a more complex hydraulic fracture morphology as a result of a smaller stress-difference coefficient. The Intersection of hydraulic fractures with multiple parallel weak surfaces creates hydraulic fractures in stepped shape, which can cause drastic fluctuations in injection pressure. The research results provide a reference for on-site deep shale reservoir stimulation and optimization of a fracturing design. |
| 资助项目 | National Natural Science Foundation of China[52204055] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001269547300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42157]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Hou, Zhen-Kun; Guo, Yin-Tong |
| 作者单位 | 1.Yangtze Univ, Sch Petr Engn, Wuhan 434023, Peoples R China 2.Yangtze Univ, Hubei Key Lab Drilling & Prod Engn Oil & Gas, Wuhan 430100, Peoples R China 3.Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Guangdong, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 5.Sinopec Petr Explorat & Dev Inst, Beijing 102200, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Zai-Le,Hou, Zhen-Kun,Guo, Yin-Tong,et al. Experimental study of hydraulic fracturing for deep shale reservoir[J]. ENGINEERING FRACTURE MECHANICS,2024,307:20. |
| APA | Zhou, Zai-Le.,Hou, Zhen-Kun.,Guo, Yin-Tong.,Zhao, Hui.,Wang, Di.,...&Guo, Wu-Hao.(2024).Experimental study of hydraulic fracturing for deep shale reservoir.ENGINEERING FRACTURE MECHANICS,307,20. |
| MLA | Zhou, Zai-Le,et al."Experimental study of hydraulic fracturing for deep shale reservoir".ENGINEERING FRACTURE MECHANICS 307(2024):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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