The Effect of Middle Phase Emulsion and Interfacial Tension of Sodium Lignosulfonate Surfactant Synthesized from Bagasse to Enhanced Oil Recovery
Aqlyna Fatah Annisa1, Rini Setiati1, Arinda Ristawati1, Septoratno Siregar 2, Taufan Marhaendrajana 2, Deana Wahyuningrum 4

1 Petroleum Engineering, FTKE, Universitas Trisakti, Jakarta, Indonesia
2 Petroleum Engineering, FTTM, Institut Teknologi Bandung, Bandung, Indonesia
3 Chemistry, FMIPA, Institut Teknologi Bandung, Bandung, Indonesia

Abstract

Enhanced Oil Recovery (EOR) is an effort to increase oil recovery after through the primary recovery and secondary recovery. One method used is chemical injection using surfactants. Sodium Lignosulfonate (SLS) is one of the anionic surfactants commonly used in the EOR process. Sodium Lignosulfonate can be made by bagasse synthesis, as an alternative to the use of lignosulfonate surfactants.
The purpose of this study was to determine the effect of the middle phase emulsion and interfaccial tension on the recovery factor results.
The method used is core injection. The injection fluid used is Sodium Lignosulfonate surfactant which has been tested for its characteristics. This research uses core flood devices and synthesized Berea cores. Coreinjection are carried out in several variations of salinity and surfactant concentration.
The results of the study show that the best of the middle phase emulsion and interfacial tension (IFT) occur at low salinity of 10,000 ppm which is capable of forming a 10% middle phase emulsion, with an IFT value of 2.73 mN / m have recovery factor of 9.25%. While at high salinity 40,000 ppm - 75,000 ppm it forms a middle phase emulsion of 6.00% - 8.75% and interfacial tension 2.00 mN / m - 7.60 mN / m reaches a Recovery Factor of 4.40% - 4.74%.
Based on this study it can be concluded that the high middle phase emulsion will be of low interfacial tension so that the oil can move more easily and can be produced.

Keywords: enhanced oil recovery, interfacial tension, middle phase emulsion, sodium lignosulfonate surfactant, recovery factor

Topic: Material Engineering