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Effects of Surfactant and Hydrophobic Nanoparticles on the Crude Oil-Water Interfacial Tension

Author

Listed:
  • Xu Jiang

    (Xinjiang Petroleum Engineering Co., Ltd., Karamay 834000, China)

  • Ming Liu

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum—Beijing, Beijing 102249, China)

  • Xingxun Li

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum—Beijing, Beijing 102249, China)

  • Li Wang

    (Xinjiang Petroleum Engineering Co., Ltd., Karamay 834000, China)

  • Shuang Liang

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum—Beijing, Beijing 102249, China)

  • Xuqiang Guo

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum—Beijing, Beijing 102249, China
    Faculty of Engineering, China University of Petroleum—Beijing at Karamay, Karamay 834000, China)

Abstract

Surfactants and nanoparticles play crucial roles in controlling the oil-water interfacial phenomenon. The natural oil-wet mineral nanoparticles that exist in crude oil could remarkably affect water-oil interfacial characteristics. Most of recent studies focus on the effect of hydrophilic nanoparticles dispersed in water on the oil-water interfacial phenomenon for the nanoparticle enhanced oil recovery. However, studies of the impact of the oil-wet nanoparticles existed in crude oil on interfacial behaviour are rare. In this study, the impacts of Span 80 surfactant and hydrophobic SiO 2 nanoparticles on the crude oil-water interfacial characteristics were studied by measuring the dynamic and equilibrium crude oil-water interfacial tensions. The results show the existence of nanoparticles leading to higher crude oil-water interfacial tensions than those without nanoparticles at low surfactant concentrations below 2000 ppm. At a Span 80 surfactant concentration of 1000 ppm, the increase of interfacial tension caused by nanoparticles is largest, which is around 8.6 mN/m. For high Span 80 surfactant concentrations, the less significant impact of nanoparticles on the crude oil-water interfacial tension is obtained. The effect of nanoparticle concentration on the crude oil-water interfacial tension was also investigated in the existence of surfactant. The data indicates the less significant influence of nanoparticles on the crude oil-water interfacial tension at high nanoparticle concentration in the presence of Span 80 surfactant. This study confirms the influences of nanoparticle-surfactant interaction and competitive surfactant molecule adsorption on the nanoparticles surfaces and the crude oil-water interface.

Suggested Citation

  • Xu Jiang & Ming Liu & Xingxun Li & Li Wang & Shuang Liang & Xuqiang Guo, 2021. "Effects of Surfactant and Hydrophobic Nanoparticles on the Crude Oil-Water Interfacial Tension," Energies, MDPI, vol. 14(19), pages 1-11, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6234-:d:647387
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    References listed on IDEAS

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    1. Dayo Afekare & Jayne C. Garno & Dandina Rao, 2020. "Insights into Nanoscale Wettability Effects of Low Salinity and Nanofluid Enhanced Oil Recovery Techniques," Energies, MDPI, vol. 13(17), pages 1-22, August.
    2. Sayed Ameenuddin Irfan & Afza Shafie & Noorhana Yahya & Nooraini Zainuddin, 2019. "Mathematical Modeling and Simulation of Nanoparticle-Assisted Enhanced Oil Recovery—A Review," Energies, MDPI, vol. 12(8), pages 1-19, April.
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    Cited by:

    1. Łukasz Nagi & Mateusz Bogacz, 2023. "Statistical Analysis of Breakdown Voltage of Insulating Liquid Dopped with Surfactants," Energies, MDPI, vol. 16(3), pages 1-23, January.

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