| 标题： | Hydromechanical insight of fracture opening and closure during in-situ hydraulic fracturing in crystalline rock |
| 时间： | 2021-01-13 22:33:57 |
| DOI： | 10.1016/j.ijrmms.2020.104450 |
| 大小： | 15943 kb |
| 页数： | 18 PAGES |
| 下载： | 点击下载 |
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目录：
- Hydromechanical insight of fracture opening and closure during in-situ hydraulic fracturing in crystalline rock
- 1 Introduction
- 1.1 Background on transient pressure analysis (TPA)
- 1.2 Hydromechanics
- 1.3 Research objectives
- 2 Rock mass characterization and experimental setup
- 2.1 Rock mass characterization
- 2.2 Experimental setup
- 2.3 Injection protocol
- 3 Methods
- 3.1 DFIT
- 3.2 Pressure-controlled step tests
- 4 Results and interpretations
- 4.1 DFIT
- 4.1.1 Test comparison
- 4.1.2 Contact pressure from the G*dp/dG versus G method
- 4.1.3 ISIP from the pressure-decay-rate method
- 4.1.4 Effective ISIP from the dp/dG versus G method
- 4.2 Pressure-controlled step tests
- 4.3 Comparison of methods
- 4.1 DFIT
- 5 Discussion
- 5.1 Transient pressure effects: geology and fluid rheology
- 5.2 Best estimate of the minimum principal stress magnitude
- 5.3 Implication for the stress field
- 6 Conclusions
- Declaration of competing interest
- Acknowledgement
- Appendix D Supplementary data
- Appendix A.1 Change in pressure and derivative
- Appendix A.2 G-function
- Appendix A.3 DFIT from experiment HF2 and HF8
- References
- 1 Introduction
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