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标题：Enhanced heavy oil recovery using 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate
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作者：Ahmed Tunnish ; Ahmed Tunnish ; Ezeddin Shirif 等
期刊名称：Canadian Journal of Chemical Engineering
印刷版ISSN：0008-4034
出版年度：2017
卷号：95
期号：5
页码：871-879
DOI：10.1002/cjce.22733
语种：English
出版社：Chemical Institute of Canada
摘要：abstract Injecting chemicals in reservoirs is an efficient technique to improve oil recovery. In this study, a promising room temperature ionic liquid (RTIL), 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate ([EMIM][Ac]), was injected to enhance the extraction of a heavy oil (14° API) from an unconsolidated sand pack at room conditions. [EMIM][Ac] was mixed with two different synthetic brines (0.1 and 1 mass% NaCl), and injected as a continuous displacing phase to improve heavy oil recovery. The results obtained showed that [EMIM][Ac] is an efficient solvent in the enhancement of the oil recovery factor (RF). The effects of [EMIM][Ac] concentration (C) on the interfacial tension (IFT), surface tension (SFT), zeta potential (ZP), pH, and conductivity (COND) were also investigated. The experimental study clearly demonstrates that [EMIM][Ac] is more efficient in enhancing the recovery of heavy oil than sodium dodecyl sulphate (SDS), a well‐known commercial surfactant.
关键词：enEORionic liquidsrecovery factorheavy oil