Research Article
Numerical Investigation on the Hydraulic Fracture Evolution of Jointed Shale
Table 2
Physicomechanical parameters of the shale and joint employed in the simulation.
| Parameters | Unit | Shale | Joint |
| Heterogeneity index (m) | | 2 | 2 | Young’s modulus (E) | GPa | 20 | 3 | Poisson’s ratio (ν) | | 0.37 | 0.37 | Friction angle (φ) | ° | 35 | 35 | Compressive strength (fc) | MPa | 118 | 12 | Permeability coefficient (K) | md−1 | 0.000864 | 0.00864 |
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