Numerical Simulation and Optimization of Enhanced Oil Recovery by the In Situ Generated CO₂ Huff-n-Puff Process with Compound Surfactant

Table 3

Characteristic parameters of the reservoir (at a reservoir temperature of 59°C).

Reservoir depth (m)	1212
Total thickness (m)	97.9
Porosity (%)	5–28
Permeability (mD)	15–90
Drainage radius (m)	200
Original water saturation	0.55
Original formation pressure (MPa)	11.34
Reservoir temperature (°C)	59
Saturation pressure (MPa)	4.25
Viscosity of crude oil (mPa·s)	70.01
Density of crude oil (g/cm^3)	0.8218