Pengaruh penambahan garam anorganik, pelarut alkohol, dan alkali terhadap formula " Surfaktan MES - Air Formasi - Minyak" (studi kasus Lapangan Sandstone)

Abstract

The application of methyl ester sulfonate (MES) surfactant for enhance oil recovery (EOR) was due to its ability to reduce interfacial tension in crude oil-water system that reaches 10-3 dyne/cm. Performance of methyl ester sulfonate (MES) surfactant can be identified with the spinning drop IFT method and phase behavior method. The objectives of this research were to determine of MES surfactant performance with addition of inorganic salt, alcohol, and alkaly in different conditions. The dispersing media used in this research is the formation water and demineralized water. The spinning drop IFT method was conducted using spinning drop tensiometer TX500C tested in 40, 50 and 60 oC. The researched showed that reduction of IFT value was affected by surfactant, inorganic salt, solvent alcohol, and alkali in the formation water and demineralized water dispersion medium. The phase behavior method was conducted using test tube method performance at 50 oC. The best result of phase behavior methode was found in formation water dispersion medium with the 0,3% of methyl esteer sulfonat (MES) addition.