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All Journal International Journal of Community Service Jurnal AKAL: Abdimas dan Kearifan Lokal Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Earth Energy Science, Engineering, and Technology Scientific Contributions Oil and Gas
Apriandi Rizkina rangga Wastu
Program Studi Teknik Perminyakan Fakultas Teknologi Kebumian Dan Energi Universitas Trisakti
Religion Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Public Health Social Sciences Transportation Other

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The Effect of MES-Ethanol Formulation in Enhancing Surfactant Flooding Efficiency - A Laboratory Scale Perspective Mulia Ginting; Muhammad Taufiq Fathaddin; Puri Wijayanti; Apriandi Rizkina Rangga Wastu; Zakia Azzahra; Eleonora Anselina Desi Letor; Ryan Gilberth de Fretes
Scientific Contributions Oil and Gas Vol 49 No 2 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i2.2096

Abstract

Surfactant flooding is an Enhanced Oil Recovery (EOR) technique aimed at improving oil displacement efficiency by reducing the interfacial tension (IFT) between oil and water. This study investigates the performance of palm oil–based Methyl Ester Sulfonate (MES) surfactant combined with 96% ethanol as a co-surfactant for EOR applications. The surfactant formulations were prepared at MES concentrations ranging from 0.5% to 2.0% and evaluated through density, viscosity, aqueous stability, phase behavior, interfacial tension, and coreflooding experiments. The aqueous stability test showed that all formulations remained clear without precipitation, indicating good thermal stability. Viscosity measurements showed that solution viscosity increased with higher surfactant concentrations but consistently declined as the temperature rose from 30 °C to 60 °C. Phase behavior analysis demonstrated that ethanol enabled the formation of emulsions at all concentrations, with middle-phase microemulsions observed at MES concentrations of 1.25% and 1.5%. The largest middle-phase emulsion volume of 3.00% was obtained at 1.25% MES, indicating the optimal formulation. Interfacial tension measurements showed a reduction to 0.521 mN/m, confirming the effectiveness of the co-surfactant in lowering IFT. Coreflooding results indicated that surfactant injection yielded an incremental oil recovery factor of 29.24% over conventional waterflooding, achieving a total cumulative recovery factor of 45.90%.
Co-Authors Abdul Hamid Ade Kurniawan Saputra Aqlyna Fattahanisa Arinda Ristawati Beta Resqy Avianti Eleonora Anselina Desi Letor Fadliah, Fadliah Firman Herdiansyah Ghanima Yasmaniar Gracia Betaria Jacqueline Timpal Havidh Pramadika Havidh Pramadika Lailatul Wastiyah lilik zabidi Mario Valentino Dio Muhammad Taufiq Fathaddin, Muhammad Taufiq Mulia Ginting Nadira Cahya Sutikna Onnie Ridaliani, Onnie Pauhesti Pauhesti puri wijayanti Reza Aryanto Ridha Husla Ridha Husla Ridha Husla Ryan Gilberth de Fretes Sri Feni Maulindani Tedy Subardja Widia Yanti Yulia, Prayang Sunny Zakia Azzahra