A Discrete Fracture Modeling Approach for Analysis of Coalbed Methane and Water Flow in a Fractured Coal Reservoir

Table 1

Simulation parameters for water-flooding cases.

Parameters	Value	Unit
Simulation area		m^2
Permeability of fracture,		m^2
Porosity of fracture,	1.00
Fracture aperture,		m
Permeability of matrix,		m^2
Porosity of matrix,	0.20
Initial reservoir pressure, and	1000	Pa
Initial water saturation, and	0.70
Entry capillary pressure, and	0.10	MPa
Initial residual water saturation	0.00
Initial residual nonwetting saturation	0.00
Viscosity of water, and	10^-3	Pa·s
Viscosity of nonwetting phase, and		Pa·s
Density of water, and	1000	kg/m^3
Density of nonwetting phase, and	0.864	kg/m^3