Research Article

A Semianalytical Two-Phase Imbibition Model in Dual-Porosity and Dual-Permeability Reservoirs

Table 3

Reservoir parameters of water injection well.

ParameterValueUnits

Wellbore radius0.12m
Matrix porosity0.23Fraction
Fracture porosity0.05Fraction
Matrix permeabilityμm2
Fracture permeability0.3μm2
Formation height10m
Irreducible water saturation20%
Residual oil saturation14%
Initial pressure14MPa
Rock compressibility1/MPa
Oil compressibility1/MPa
Water compressibility1/MPa
Water viscosity0.5mPa·s
Oil viscosity1mPa·s
Injection rate40m3/day