Numerical Investigation on the Hydraulic Fracture Evolution of Jointed Shale

Table 1

Physicomechanical parameters of the rock and joint in the simulations.

Parameters	Unit	Rock	Joint
Heterogeneity index		2	2
Young’s modulus	GPa	20	3
Poisson ratio		0.25	0.25
Friction angle	^°	37	37
Compressive strength	MPa	120	40
Permeability coefficient (K)	md^−1	0.000864	0.00864