Efficiency of the Green Surfactant Derived from Avena sativa Plant in the Presence of Different Salts for EOR Purposes

Table 2

IFT values of diluted formation brine and crude oil at 80°C.

Diluted formation brine (ppm)	IFT (mN/m)
1,000	19.64
5,000	16.42
10,000	14.26
20,000	14.78
50,000	15.34
75,000	15.89
97,000	17.02