Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities
文献类型：期刊论文
| 作者 | Ji, Yinlin1; Zhang, Wei2; Hofmann, Hannes1,3; Cappa, Frederic4; Zhang, Supeng1,5 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2023-09-28 |
| 卷号 | 50期号:18页码:13 |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2023GL104662 |
| 英文摘要 | We present a series of controlled fluid injection experiments in the laboratory on a pre-stressed natural rough fracture with a high initial permeability (& SIM;10-13 m2) in granite using different fluid pressurization rates. Our results show that fluid injection on a fracture with a slight velocity-strengthening frictional behavior exhibits dilatant slow slip in association with a permeability increase up to & SIM;41 times attained at the maximum slip velocity of 0.085 mm/s for the highest-rate injection case. Under these conditions, the slip velocity-dependent change in hydraulic aperture is a dominant process to explain the transient evolution of fracture permeability, which is modulated by fluid pressurization rate and fracture surface asperities. This leads to the conclusion that permeability evolution can be engineered for subsurface geoenergy applications by controlling the fluid pressurization rate on slowly slipping fractures. Understanding the evolution of fracture permeability during hydraulic stimulation of subsurface reservoirs is the key to characterizing fluid transport and formulating strategies to limit induced seismicity. Accordingly, there is a significant interest in deciphering how the fluid pressurization rate, a constitutive operational parameter during injection, influences the transient permeability change during fracture slip. We conducted a series of experiments in the laboratory using different fluid pressurization rates on a natural rough fracture in granite under a pre-stressed state. The fracture had a high initial permeability. Our findings show that when fluid is injected into a fracture with a slight velocity-strengthening frictional behavior, it causes slow slipping with significant permeability enhancement. The change in hydraulic aperture caused by slip velocity is the main reason for the temporary change in permeability, and this effect is modulated by fluid pressurization rate and fracture surface irregularities. Our results suggest that we can modulate the permeability of subsurface geoenergy reservoirs by controlling the fluid pressurization rate on slowly slipping fractures. We conducted fluid injection experiments on a pre-stressed natural rough fracture in granite at different pressurization ratesThe velocity-strengthening fracture exhibits slow slip accompanied by a significant increase in permeability during fluid injectionTransient fracture permeability is controlled by injection-induced slip velocity, modulated by pressurization rate and surface asperities |
| WOS关键词 | FAULT REACTIVATION ; INDUCED SEISMICITY ; EVOLUTION ; SLIP ; PRESSURE ; STRENGTH ; FRICTION ; BEHAVIOR ; STRESS ; JOINT |
| 资助项目 | Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Nanyang Technological University (NTU), Singapore ; [VH-NG-1516] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001066627000001 |
| 资助机构 | Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Nanyang Technological University (NTU), Singapore ; Nanyang Technological University (NTU), Singapore ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Nanyang Technological University (NTU), Singapore ; Nanyang Technological University (NTU), Singapore ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Nanyang Technological University (NTU), Singapore ; Nanyang Technological University (NTU), Singapore ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES ; Nanyang Technological University (NTU), Singapore ; Nanyang Technological University (NTU), Singapore |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110869]  |
| 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 | Ji, Yinlin |
| 作者单位 | 1.Helmholtz Ctr Potsdam, GFZ German Res Ctr Geosci, Potsdam, Germany 2.China Univ Petr East China, Sch Petr Engn, Qingdao, Peoples R China 3.Tech Univ Berlin, Inst Appl Geosci, Berlin, Germany 4.Univ Cote Azur, CNRS, Observ Cote Azur, IRD, Sophia Antipolis, France 5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Yinlin,Zhang, Wei,Hofmann, Hannes,et al. Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(18):13. |
| APA | Ji, Yinlin,Zhang, Wei,Hofmann, Hannes,Cappa, Frederic,&Zhang, Supeng.(2023).Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities.GEOPHYSICAL RESEARCH LETTERS,50(18),13. |
| MLA | Ji, Yinlin,et al."Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities".GEOPHYSICAL RESEARCH LETTERS 50.18(2023):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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