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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Journal of Engineering and Technological Sciences PENELITIAN DAN KARYA ILMIAH JOURNAL OF EARTH ENERGY ENGINEERING Prosiding Seminar Nasional Pakar Journal of Petroleum and Geothermal Technology JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Earth Energy Science, Engineering, and Technology Scientific Contributions Oil and Gas
Taufan Marhaendrajana, Taufan
Institut Teknologi Bandung
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Investigation and Optimization of Enhanced Oil Recovery Mechanism by Sophorolipid Biosurfactant in Carbonate Reservoir Indah Widiyaningsih; Harry Budiharjo Sulistyarso; Ivan Kurnia; Taufan Marhaendrajana; Tutuka Ariadji
Scientific Contributions Oil and Gas Vol 48 No 3 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i3.1830

Abstract

The Remaining Oil in Place (ROIP) in carbonate rock reservoirs is often substantial. This is due to the tendency of carbonate rocks to be oil-wet in terms of wettability. The oil's inherent property of wetting the rock causes the residual oil to adhere to the rock's pores, making it challenging to extract to the surface. One method to enhanced oil recovery (EOR) is through biosurfactant injection, i.e., sophorolipid, a fungal biosurfactant that possesses the properties of surfactants in general. This study aims to evaluate the effectiveness of sophorolipid biosurfactant injection in enhancing oil recovery in carbonates, as well as to identify the dominant mechanism at work during the injection process and optimize it through coreflooding simulation. This research was conducted through laboratory testing and validation using a simulator, comprising two phases: coreflooding tests and coreflooding simulations. Coreflooding simulation was conducted to reduce the need for coreflooding experiments, which are time-consuming and costly. The simulator used in this research is CMG-GEM with sensitivity parameter and optimization using CMOST. The Sobol Analysis was conducted to assess the sensitivity parameters and identify the primary mechanism of sophorolipid. Then, optimization is achieved by adjusting the parameters, such as sophorolipid concentration, pore volume (PV) injection, and injection rate. Coreflooding sensitivity results show that the dominant parameter is the nonwetting trapping number (DTRAPN), which is closely related to the mechanism of wettability alteration and mix viscosity. The effectiveness of the Sophorolipid mechanism in modifying wettability, enhancing displacement efficiency, and facilitating emulsion formation, hence improving sweeping efficiency. The recovery factor (RF) increased from the coreflooding simulation optimization results, reaching 19%-33%.
Co-Authors Achmad Munir Adrianto Adrianto, Adrianto Anugerah Solida Asri Nugrahanti Billal Aslam Boni Swadesi Dara Ayuda Maharsi Dara Ayuda Maharsi, Dara Ayuda Deana Wahyuningrum Doddy Abdassah Doddy Abdassah Doddy Abdassah Doddy Abdassah Dyah Rini Ratnaningsih Erdilla Indriyani Farizal Hakiki Farizal Hakiki, Farizal Gerry Sasanti Nirmala H.P. Septoratno Siregar H.P. Septoratno Siregar, H.P. Septoratno Harry Budiharjo Sulistyarso I GB Eddy Sucipta Indah Widiyaningsih Ivan Kurnia Kamil, Maulana Insan Kharisma Idea Leksono Mucharam Leksono Mucharam Maulana Insan Kamil Muhammad Ghifari Ridwan Muhammad Hasto Nugroho Muhammad Taufiq Fathaddin, Muhammad Taufiq Onnie Ridaliani Prapansya Onnie Ridaliani, Onnie Pudji Permadi Pudji Permadi, Pudji Rani Kurnia Ridwan, Muhammad Ghifari Rini Setiati Septoratno Siregar Sonny Irawan Sonny Irawan Sonny Irawan Sri Feni Sri Feni Maulindani Sri Feni Maulindani Sudjati Rachmat Suryo Prakoso, Suryo Sutopo Sutopo Sutopo, Sutopo Syihab, Zuher Tutuka Ariadji Yarra Sutadiwiria Zona Nuansa Antariksa Zuher Syihab