Research progress and prospect of silica-based polymer nanofluids in enhanced oil recovery

Abstract In recent years, silica-based polymer nanofluids (NFs) have attracted more and attention because they can enhance temperature salt tolerance. This study summarized the research progress prospects of NFs in enhanced oil recovery (EOR). First, synthesis method effect on were studied. Research rheology, wettability, viscoelasticity, interfacial tension, adsorption, porous media flow, emulsion stability reviewed, mechanism for EOR was expounded. Then, mechanical properties interaction between silica discussed by molecular dynamics simulation. And macroscopic reservoir simulation explored. Finally, related auxiliary technologies introduced, future directions put forward. The results this will help researchers better understand EOR.