Nanofluid for enhanced oil recovery

An experimental study of nanofluids intended for enhanced oil recovery is presented in this work. An aqueous solution of anionic surface-active agents with addition of light non-ferrous metal nanoparticles was used as the focus of the study. It is shown that the use of the nanofluid permitted a 70-90% reduction of surface tension on an oil boundary in comparison with surface-active agent aqueous solution and is characterized by a shift in dilution. Use the developed nano-suspension results in a considerably increase EOR. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.