This research aims to test the addition of surfactant concentrations made using used cooking oil on the acquisition of IFT (interfacial tension) and RF (recovery factor) values as an effort to increase crude oil recovery. The purpose of the used cooking oil as a surfactant material is to utilize waste into something useful. The used cooking oil was the result of fried chicken frying at a street stall. The measurements taken were the density, viscosity and interfacial tension of the solution. Then the calculation of water, oil, and surfactant injection. The surfactant concentration used for injection was 32%, based on the CMC (critical micellar concentration) point, then mixed with 15,000 ppm brine solution. From the research conducted, it was found that the RF was tested at various concentrations, with temperature of 30o C, carried out at surfactant concentrations of 0.8, 1, and 1.1%. The RF results were 36, 39, and 39%. Then the greater the surfactant concentration, the greater the RF value. The largest RF results were at a temperature of 30o C with concentration of 1.1%.
Oleh :
Prayang Sunny Yulia