Emulsion Formation of Light Crude Oil 36-degree API Salinity 12000 Ppm with Palm Oil Methyl Ester Sulfonate Surfactant and Co-Surfactant Ryan Gilberth de fretes1, Rini Setiati2*, Muhammad Taufiq Fathaddin2, Berkah Hani3
1Departement of Petroleum Engineering, Universitas Trisakti, Jakarta, Indonesia
2Master Program of Petroleum Engineering, Universitas Trisakti, Jakarta, Indonesia
3Department of Petroleum Engineering, Universitas Tanri Abeng, Jakarta, Indonesia
One of the Enhanced Oil Recovery (EOR) methods used to increase oil recovery is Surfactant Flooding using palm oil Methyl Ester Sulfonate (MES) Surfactant. This research aims to assess the stability and type of emulsion formed by Co-Surfactant MES over a specified time. In this research, MES surfactant compatibility test was carried out on 36-degree API light crude oil samples. Tests were carried out with various surfactant concentrations, starting from 0.5%, 0.75%, 1%, 1.25%, 1.5%, 1.75%, and 2%. This test was carried out by mixing the Co-Surfactant solution with an oil sample then shaking it and placing it in an oven at a temperature of 60˚-C then observing the formation of the emulsion for 21 days. In this research, co-surfactant was also used with the same concentration as the surfactant. The results of the phase behavior test showed that middle phase emulsion was formed at a concentration of 1.25% is around 3.00%. From the results of this research it can be concluded that the use of co-surfactant for a salinity system of 12000 ppm is capable of forming a 3.00% middle phase emulsion at a surfactant concentration of 1.25% and the addition of 1.25% co-surfactant.
