Experimental Study on the Properties and Displacement Effects of Polymer Surfactant Solution

Table 5

Experimental results of Type I polymer surfactant flooding.

Experimental project	Absolute permeability (10^−3 𝜇m^2)	Porosity (%)	Oil saturation (%)	Water flooding recovery (%)	Polymer flooding recovery (%)	Overall recovery (%)
Polymer surfactant (400 mg/L, 31.83 mPa·s) + water flooding	309	23.83	73.16	37.60	10.38	47.98
Polymer surfactant (650 mg/L, 39.7 mPa·s) + water flooding	298	24.09	72.36	37.50	13.48	50.98
Polymer surfactant (925 mg/L, 61.35 mPa·s) + water flooding	307	24.90	69.88	37.88	16.29	54.17