Research Article
Fracture Propagation Behavior of Jointed Rocks in Hydraulic Fracturing
Table 2
Physicomechanical parameters of shale and joint employed in simulation.
| Parameters | Unit | Shale | Joint |
| Heterogeneity index (m) | — | 2 | 2 | Young’s modulus (E) | GPa | 30 | 3 | Possion’s ratio (ν) | — | 0.25 | 0.25 | Friction angle (φ) | ° | 35 | 35 | Compressive strength (fc) | MPa | 150 | 20 | Permeability coefficient (K) | md−1 | 0.000864 | 0.00864 |
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