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The impact of silica nanoparticles on the performance of polymer solution in presence of salts in polymer flooding for heavy oil recovery
, Article Fuel ; Vol. 123 , May , 2014 , pp. 123-132 ; ISSN: 00162361 ; Kharrat, R ; Mohebbi, A ; Ghazanfari, M. H ; Sharif University of Technology
Abstract
Due to role of polymer in increasing sweep efficiency during oil recovery, much attention has been paid to the using polymer solutions in enhanced oil recovery methods. In spite of the existence of the great researches in this area, the role of nanoparticles in modification of the polymer performance in the presence of salts has not been examined before. Furthermore, there is no information about how the dispersed silica nanoparticles affect the heavy oil recovery during the polymer flooding in the presence of divalent cations. In this study, a series of polymer flooding experiments are performed in a quarter five-spot glass micromodel saturated with heavy oil. Solutions of polyacrylamide...