Experimental Study of Nanofluids Applied in EOR Processes

Experimental Study of Nanofluids Applied in EOR Processes Nanoemulsions are small droplet-sized systems that have low surface tension and a small percentage of active material in their composition. In this study, low oil content nanoemulsion systems were developed for the use in enhanced oil recovery (EOR). The experiments were performed on a device capable of simulating petroleum reservoir conditions using sandstone rock cores. Nanoemulsions were obtained from a pre-selected microemulsion system composed of: RNX95 as surfactant, isopropyl alcohol as cosurfactant, kerosene as oil phase, and distilled water as aqueous phase. Different percentages of polyacrylamide were added to the systems obtained to evaluate the influence of viscosity in EOR results. The nanoemulsion droplet sizes ranged from 9.22 to 14.8 nm. Surface tension values were in the range of 33.6–39.7  dyn/cm. A nanoemulsion system with 2.5 wt% surfactant was used in EOR assays. The oil recovery was directly proportional to polymer percentage in the nanoemulsion, ranging from 39.6 to 76.8%. The total oil in the place recovery ranged from 74.5 to 90%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Surfactants and Detergents Springer Journals

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by AOCS
Subject
Chemistry; Industrial Chemistry/Chemical Engineering; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution; Surfaces and Interfaces, Thin Films; Polymer Sciences; Physical Chemistry
ISSN
1097-3958
eISSN
1558-9293
D.O.I.
10.1007/s11743-017-1992-2
Publisher site
See Article on Publisher Site

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