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This research aims to develop and evaluate microemulsion systems for reducing injection pressure in low-permeability oil reservoirs.

Research on performance regulation and effect evaluation of microemulsion for pressure reduction and injection enhancement in low-permeability oil reservoirs

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Randomized trial evaluates microemulsion effects on pressure reduction in low-permeability reservoirs, indicating improved injection efficiency.

This research aims to develop and evaluate microemulsion systems for reducing injection pressure in low-permeability oil reservoirs.
Synthesized various middle phase microemulsions using low-energy emulsification methods.
Employed online displacement CT and nuclear magnetic resonance scanning technology to assess performance.
Evaluated the optimized formulation for its ability to improve oil recovery dynamics.
The optimized nano-microemulsion reduces displacement pressure by 18.2% to 33.3%.
Microemulsion promotes oil transition from a continuous state to dispersed droplets, enhancing core displacement efficiency.
Low interfacial tension and strong wettability modification of OP-10 microemulsion reduce capillary resistance.

Liu et al. (2026) studied this question.

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Randomized trial evaluates microemulsion effects on pressure reduction in low-permeability reservoirs, indicating improved injection efficiency.