Review Article
Coupled Large Scale Hydromechanical Modelling for Caprock Failure Risk Assessment of Gas Storage in Aquifer
Table 9
Comprehensive evaluation form of S.
| | Evaluation criteria | Injection pressure (MPa) | The minimum principal compressive stress (MPa) | Equivalent internal friction angle (°) | Breakthrough pressure (MPa) |
| | Tensile failure | 28.3 | 0.2 → 0 | >30 | 10.26 | | Mohr-Coulomb shear failure | 24.3 | -4 | 28.5 → 30 | 10.26 | | Capillary sealing | 21.56 | -4< | <28.5 | 10.26 |
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