Synergetic Effect of SLS Surfactant of Bagasse on Enhanced Oil Recovery

The purpose of this research is to identify the synergetic effects of several parameters of an enhanced oil recovery mechanism by using sodium lignosulfonate (SLS) from bagasse. This is a laboratory research method conducted using SLS surfactant of bagasse injection process with that of light crude oil. The core injection was reinforced by the tested SLS surfactant characteristics such as IFT and contact angle. The core injection using SLS surfactant showed a high recovery factor at the two areas, at 5000 ppm salinity and at salinity of 80,000 ppm. At a higher salinity level, it produced a larger contact angle of 20°–50°. The interfacial tension value also increased from 2.73 to 4.11 mN/m. The value of oil recovery at these salinity variations ranged from 9.25 to 1.80%. The results of this research show that the mechanism of surfactant flooding depends on several parameters, like salinity, surfactant concentration, IFT and contact angle. The value of the formed contact angle also affects the performance of SLS surfactant in the oil purification process. Thus, it can be concluded that the parameters of the SLS surfactant in the injection process provide a synergetic effect on the oil recovery mechanism in terms of salinity, surfactant concentration, IFT, and contact angle.