Numerical Analysis of Multiple Factors Affecting Hydraulic Fracturing in Heterogeneous Reservoirs Using a Coupled Hydraulic-Mechanical-Damage Model

Table 2

Mesh size, fracturing parameters, and boundary conditions of the numerical model.

Parameter	Symbol	Unit	Value
Volume		m^3
Element number	nele	—	5040000
Injection rate		m^3·min^-1	8
Fluid density		kg m^-1	1000
Fluid viscosity		mPa·s	53
Coupling coefficient		—	1.8
Maximum horizontal stress		MPa	64
Minimum horizontal stress		MPa	57
Vertical stress		MPa	72