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