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Investigation and Optimization of Enhanced Oil Recovery Mechanism by Sophorolipid Biosurfactant in Carbonate Reservoir

Scientific Contributions Oil and Gas · Vol. 48 No. 3 (2025) · hlm. 23–36

DOI
10.29017/scog.v48i3.1830
ISSN
2541-0520, 2089-3361
Terbit
2025-10-29
Penerbit
Testing Center for Oil and Gas LEMIGAS
Bahasa
eng
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

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%.

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  • Bandung Institute of Technology
  • Universitas Pembangunan Nasional Veteran Yogyakarta
  • Indonesia University of Education
  • Universitas Pertamina
  • Politeknik Energi dan Mineral Akamigas
  • Satya Wacana Christian University
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Rekan penulisOrganisasiArtikel bersama
Ndaru CahyaningtyasUniversitas Pembangunan Nasional Veteran Yogyakarta4
Zuher SyihabBandung Institute of Technology4
Sayoga Heru PrayitnoUniversitas Pembangunan Nasional Veteran Yogyakarta4
Dedi KristantoUniversitas Pembangunan Nasional Veteran Yogyakarta4
Kuntjoro Adji SidartoBandung Institute of Technology3
Utjok W.R. SiagianBandung Institute of Technology3
Boni SwadesiUniversitas Pembangunan Nasional Veteran Yogyakarta3
Dewi AsmorowatiBandung Institute of Technology3
Deana WahyuningrumBandung Institute of Technology2
Rani KurniaBandung Institute of Technology2
Doddy AbdassahBandung Institute of Technology2
Hariyadi HariyadiUniversitas Pembangunan Nasional Veteran Yogyakarta2
Sutopo SutopoBandung Institute of Technology2
Leksono MucharamBandung Institute of Technology2
Adrianto AdriantoBandung Institute of Technology1
Lala Septem RizaIndonesia University of Education1
Edy SoewonoBandung Institute of Technology1
Pudjo SukarnoBandung Institute of Technology1
Kenny DavidBandung Institute of Technology1
Hasian P. Septoratno SiregarBandung Institute of Technology1
Farizal HakikiBandung Institute of Technology1
Dara Ayuda MaharsiUniversitas Pertamina1
Muhammad Ghifari RidwanBandung Institute of Technology1
Maulana Insan KamilBandung Institute of Technology1
Pudji PermadiBandung Institute of Technology1
Achmad MunirBandung Institute of Technology1
Gerry Sasanti NirmalaBandung Institute of Technology1
Erdilla IndriyaniPoliteknik Energi dan Mineral Akamigas1
Anugerah SolidaAfiliasi tidak diketahui1
Sudjati RachmatBandung Institute of Technology1
Dian Asfriany NurfalahBandung Institute of Technology1
Suryasatriya TrihandaruSatya Wacana Christian University1
Ivanky SaputraAfiliasi tidak diketahui1
Septoratno SiregarBandung Institute of Technology1
Sinatra CanggihBandung Institute of Technology1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.lemigas.esdm.go.id/index.php/SCOG/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Investigation and Optimization of Enhanced Oil Recovery Mechanism by Sophorolipid Biosurfactant in Carbonate Reservoir </dc:title>
	<dc:creator xml:lang="en">Widiyaningsih, Indah</dc:creator>
	<dc:creator xml:lang="en">Sulistyarso, Harry Budiharjo</dc:creator>
	<dc:creator xml:lang="en">Kurnia, Ivan</dc:creator>
	<dc:creator xml:lang="en">Marhaendrajana, Taufan</dc:creator>
	<dc:creator xml:lang="en">Ariadji, Tutuka</dc:creator>
	<dc:subject xml:lang="en">sophorolipids</dc:subject>
	<dc:subject xml:lang="en">coreflooding simulation</dc:subject>
	<dc:subject xml:lang="en">optimization</dc:subject>
	<dc:subject xml:lang="en">sensitivity analysis</dc:subject>
	<dc:subject xml:lang="en">Sobol Analysis</dc:subject>
	<dc:description xml:lang="en">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%.</dc:description>
	<dc:publisher xml:lang="en">Testing Center for Oil and Gas LEMIGAS</dc:publisher>
	<dc:date>2025-10-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.lemigas.esdm.go.id/index.php/SCOG/article/view/1830</dc:identifier>
	<dc:identifier>10.29017/scog.v48i3.1830</dc:identifier>
	<dc:source xml:lang="en">Scientific Contributions Oil and Gas; Vol. 48 No. 3 (2025); 23-36</dc:source>
	<dc:source xml:lang="id">Scientific Contributions Oil and Gas; Vol 48 No 3 (2025); 23-36</dc:source>
	<dc:source>2541-0520</dc:source>
	<dc:source>2089-3361</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.lemigas.esdm.go.id/index.php/SCOG/article/view/1830/1473</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 © Copyright by Authors. Published by LEMIGAS</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by/4.0</dc:rights>
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