纳米二氧化硅改性以及在EOR中的应用机理研究

Study on the modification of nano-silica and its application mechanism in EOR

在系统总结纳米技术用于三次采油的基础上,综述了纳米二氧化硅在改性方面的研究进展,并重点讨论了纳米二氧化硅在降压增注、降低油水界面张力以及剥离油膜方面的应用机理,对纳米流体用于提高原油采收率的发展前景提出认识和展望,为纳米流体驱油技术的推广与应用提供参考。

Based on the systematic summary of the application of nano technology in tertiary oil recovery,this paper reviews the research progress of nano silica in modification,and focuses on the application mechanism of nano silica in depressurizing and increasing injection,reducing oil-water interfacial tension and stripping oil film.The development prospect of nano fluid for enhancing oil recovery is put forward,which can be used for oil displacement by nanofluid.The promotion and application of the technology provide a reference.