Research Article

Fracture Propagation Behavior of Jointed Rocks in Hydraulic Fracturing

Table 2

Physicomechanical parameters of shale and joint employed in simulation.

ParametersUnitShaleJoint

Heterogeneity index (m)22
Young’s modulus (E)GPa303
Possion’s ratio (ν)0.250.25
Friction angle (φ)°3535
Compressive strength (fc)MPa15020
Permeability coefficient (K)md−10.0008640.00864