Study of Rheological Property and Flow Behavior for Nanoparticles Enhanced VES System in Porous Media
Zhaoxia Liu, Qiang Wang, Ming Gao, Wenli Luo, Hongyan Cai
Abstract
In this paper, a composite sample (VES and SiO 2 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 2 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.
Topics & Concepts
RheologyNanoparticlePorous mediumMaterials scienceChemical engineeringEnhanced oil recoveryMicelleComposite numberPorosityPolymerComposite materialNanotechnologyChemistryOrganic chemistryAqueous solutionEngineeringEnhanced Oil Recovery TechniquesPetroleum Processing and AnalysisSurfactants and Colloidal Systems