A Review of the Effect of Surfactant and Nanoparticles on Interfacial Phenomenon in Enhanced Oil Recovery
In recent years,due to the depletion of crude oil and the increasing demand for energy,researchers have been widely interested in various methods of chemical-enhanced oil recovery(cEOR).The improvement of oil/water and solid/water interfacial phenomena is crucial in cEOR.Surfactants and nanoparticles have the ability to reduce the oil/water interfacial tension and alter the wettability of sandstone reservoirs as well as change the rheology of crude oil.However,the mechanisms of how they improve the interfacial phenomenon are different.In this review,the effects of surfactant and nanoparticles on the interfacial properties and mechanisms are compared.The dominant reasons for surfactant and nanoparticles in enhancing oil recovery were summarized.Also,the potential of future research was outlooked.
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