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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received February 26, 2017
Accepted September 5, 2017
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Investigating the effect of nano-silica on efficiency of the foam in enhanced oil recovery

1Department of Petroleum Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran 2School of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran 3National Iranian Oil Company, Tehran, Iran 4Fanavari Atiyeh Pouyandegan Exir Company, Incubation Centre of Science and Technology Park, Arak, Iran
zeinolabedinihezave.ali@gmail.com
Korean Journal of Chemical Engineering, December 2017, 34(12), 3119-3124(6), 10.1007/s11814-017-0242-7
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Abstract

Due to the vast production of crude oil and consequent pressure drops through the reservoirs, secondary and tertiary oil recovery processes are highly necessary to recover the trapped oil. Among the different tertiary oil recovery processes, foam injection is one of the most newly proposed methods. In this regard, in the current investigation, foam solution is prepared using formation brine, C19TAB surfactant and air concomitant with nano-silica (SiO2) as foam stabilizer and mobility controller. The measurements revealed that using the surfactant-nano SiO2 foam solution not only leads to formation of stable foam, but also can reduce the interfacial tension mostly considered as an effective parameter for higher oil recovery. Finally, the results demonstrate that there is a good chance of reducing the mobility ratio from 1.12 for formation brine and reservoir oil to 0.845 for foam solution prepared by nanoparticles.

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