New Leakage Model for Naturally Fractured Formations Considering the Effects of Dual-System Hydro-Mechanical Coupling

Table 1

Calculation parameters.

Parameter	Symbol	Value	Parameter	Symbol	Value
Formation permeability (md)		0/1/5/10	Yield stress (Pa)		15
Formation fluid viscosity (Pa·S)		10^-3	Plastic viscosity (mPa·S)		39
Elasticity modulus (MPa)		10^4	Well bottom differential pressure (MPa)		5
Poisson’s ratio (dimensionless)		0.22	Initial width of a natural fracture (μm)		800
Particle volume modulus (MPa)		3610^3	Fracture normal stiffness (GPa/m)		30
Pore fluid volume modulus (MPa)		2.2510^3	Wellbore radius (mm)		155.6
Formation porosity (dimensionless)		0.1