AUTHOR=Liu Zhaoxia , Wang Qiang , Gao Ming , Luo Wenli , Cai Hongyan 

TITLE=Study of Rheological Property and Flow Behavior for Nanoparticles Enhanced VES System in Porous Media

JOURNAL=Frontiers in Energy Research

VOLUME=9

YEAR=2021

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.598177

DOI=10.3389/fenrg.2021.598177

ISSN=2296-598X

ABSTRACT=<p>In this paper, a composite sample (VES and SiO<sub>2</sub> nanoparticle) was used to overcome the deficiencies of polymer. The rheological character of the VES/nanoparticles hybrid and flow behavior in porous media were examined. It was found that SiO<sub>2</sub> nanoparticles exhibited viscosifying action and improved the oil tolerance. In addition, the VES solution without nanoparticles showed a lower capacity to recover oil, which might be attributed to the fact that wormlike micelles would be destroyed in crude oil. On the contrary, an enhanced oil recovery of 9.68% was achieved in the composited experiment for the VES sample with nanoparticles which is relatively stable with oil.</p>