Numerical Simulation of the Influence of Natural Fractures on Hydraulic Fracture Propagation

Table 1

Parameters used in the numerical simulation.

Parameter	Value and unit	Parameter	Value and unit
Tensile strength	6.5/10.5 MPa	Internal friction angle	30°
Elastic modulus	50 GPa	Residual strength	0.1%
Compression tension ratio	10	Pore water pressure coefficient	0.1
Permeability coefficient	0.000864 m/d	Maximum compression strain coefficient	200
Maximum tension strain coefficient	1.5	Water increment for each step	0.5 MPa
Initial water pressure	0 MPa	Vertical principle stress	5 MPa
Horizontal principle stress	10 MPa	Approach angle	45/90°