A novel concept of treating oil reservoirs by nanofluids is being developed to improve oil recovery and reduce the trapped oil in hydrocarbon reservoirs. Nanoparticles show great potential in enhancing oil recovery under ambient conditions. In this paper, the approaches of wettability alteration by using nanofluid, stability of nanofluids, and the most reliable wettability alteration mechanisms associated with variant types of nanoparticles have been reviewed. Moreover, the parameters that have a significant influence on nanofluid flooding have been discussed. Finally, the recent studies of the effect of nanoparticles on wettability alteration have been summarised and analysed. Furthermore, this paper presents possible opportunities and challenges regarding wettability alteration using nanofluids.

正在开发一种通过纳米流体处理油藏的新颖概念，以提高采油率并减少碳氢化合物油藏中的油藏。纳米颗粒在增强环境条件下的采油率方面显示出巨大潜力。在本文中，综述了使用纳米流体改变润湿性的方法，纳米流体的稳定性以及与纳米颗粒的不同类型相关的最可靠的润湿性改变机制。此外，已经讨论了对纳米流体驱满有重大影响的参数。最后，对纳米颗粒对润湿性变化影响的最新研究进行了总结和分析。此外，本文提出了使用纳米流体改变润湿性的可能机遇和挑战。