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Published on: July 27, 2022
Surfactant Synergistic Effect and Interfacial Properties of Microemulsions Compounded with Anionic and Nonionic
Biao Zhang1, Baoshan Guan1,2, Yufan Tao1
1Research Institute of Percolation Fluids Mechanics, Chinese Academy of Sciences, Beijing 100010, China.
This study introduces a new method using the Clint model and dissipative particle dynamics to efficiently screen microemulsions for enhanced oil recovery. The findings show these microemulsions exhibit excellent microscopic performance and stability.
Area of Science:
- Petroleum Engineering
- Colloid and Surface Science
- Materials Science
Background:
- Conventional enhanced oil recovery (EOR) screening methods are inefficient and lack microscopic analysis capabilities.
- Microemulsions are promising for EOR but require advanced characterization techniques.
- Anionic and nonionic surfactants offer synergistic potential in microemulsion formulation.
Purpose of the Study:
- To develop an efficient and accurate method for screening microemulsions for enhanced oil recovery.
- To analyze the synergistic effects and microscopic properties of mixed anionic and nonionic surfactant systems.
- To investigate the performance and stability of microemulsions using particle size and mesoscopic self-assembly behavior.
Main Methods:
- Utilized the Clint model to predict synergistic effects in mixed surfactant systems.
- Generated microemulsions with varying mole fractions of sodium dodecyl benzenesulfonate and polyethoxylated fatty alcohols (C12E6).
- Employed particle size analysis and dissipative particle dynamics for performance, stability, and interfacial behavior assessment.
Main Results:
- Microemulsions formulated with synergistic anionic and nonionic surfactants demonstrated excellent microscopic performance and stability.
- The Clint model effectively predicted synergistic effects, guiding microemulsion formulation.
- Particle size analysis and dissipative particle dynamics provided detailed insights into microemulsion properties.
Conclusions:
- The proposed method significantly enhances the efficiency of screening microemulsions for EOR applications.
- Accurate analysis of microemulsion properties is achievable, providing a strong theoretical foundation for future research.
- Optimized microemulsion systems based on synergistic surfactant effects offer a viable solution for improved oil recovery.
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