Page 360 - Enhanced Oil Recovery in Shale and Tight Reservoirs

332 Enhanced Oil Recovery in Shale and Tight Reservoirs

psi
pressure, 14.7

Production

hour

time, 12
Depletion

psi
tests. pressure,

depletion 3000

and Injection
soaking hour

pressurized time, Soaking 12

for
conditions KCl), mN/m surfactant IFT mN/ (0.4 surfactant

Experimental solution Testing (5% Brine 18 ¼ IFT IFT High mN/m) (3 Intermediate surfactant m) IFT mN/m) (0.02

11.11 No. Low

Table Core EF-1 EF-2 EF-3 EF-4