Consideration of Application Possibility of Biosurfactant and Alkaline-surfactant-polymer (B-ASP) with Ultra-low Crude Oil/Brine Interfacial Tension for Enhancement of Oil Recovery

Xin WANG; Hongze GANG; Jinfeng LIU; Shizhong YANG; Bozhong MU

doi:10.1627/jpi.64.84

一般論文

Consideration of Application Possibility of Biosurfactant and Alkaline-surfactant-polymer (B-ASP) with Ultra-low Crude Oil/Brine Interfacial Tension for Enhancement of Oil Recovery

Xin WANG, Hongze GANG, Jinfeng LIU , Shizhong YANG, Bozhong MU

著者情報

Xin WANG
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology
Hongze GANG
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology
Engineering Research Center of Microbial Enhanced Oil Recovery, MOE, East China University of Science and Technology
Jinfeng LIU 責任著者
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology
Engineering Research Center of Microbial Enhanced Oil Recovery, MOE, East China University of Science and Technology
Shizhong YANG
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology
Engineering Research Center of Microbial Enhanced Oil Recovery, MOE, East China University of Science and Technology
Bozhong MU
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology
Engineering Research Center of Microbial Enhanced Oil Recovery, MOE, East China University of Science and Technology

キーワード: Alkaline-surfactant-polymer formula, Lipopeptide biosurfactant, Petroleum sulfonate, Synergistic effect, Flooding system

ジャーナルフリー

2021 年 64 巻 2 号 p. 84-91

DOI https://doi.org/10.1627/jpi.64.84

詳細

抄録

Alkaline-surfactant-polymer (ASP) flooding is one of the leading technologies successfully applied in enhancement of oil recovery over the last few decades. However, it has suffered from high cost and poor environmental compatibility. In this work, a new pseudo-ternary flooding system containing Na₂CO₃, lipopeptide biosurfactant, petroleum sulfonate, and partially hydrolyzed polyacrylamide was developed, and its possibility in enhancement of oil recovery was evaluated. Compared with the traditional ASP containing only petroleum sulfonate as the surfactant component, the interfacial tension between the new pseudo-ternary flooding system and Daqing crude oil was reduced to a low level in the order of 10⁻⁴ mN/m, implying positive synergistic effects of the biosurfactant, lipopeptide, and petroleum sulfonate in the new B-ASP system. Meanwhile, the thermal adaptability, interfacial activity, and viscosity stability of the new B-ASP system were significantly improved. The results of this study suggest that B-ASP is a promising and cost-effective flooding system and a developing technology for tertiary oil recovery, particularly amid uncertainties pertaining to oil price fluctuations. To the best of our knowledge, this is the first report on a pseudo-ternary flooding system composed of B-ASP for oil recovery.

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責任著者(Corresponding author)

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