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首页> 外文期刊>Journal of industrial and engineering chemistry >Mechanistic studies of enhanced oil recovery by imidazolium-based ionic liquids as novel surfactants
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Mechanistic studies of enhanced oil recovery by imidazolium-based ionic liquids as novel surfactants

机译：基于咪唑鎓离子液体提高油回收作为新型表面活性剂的机械研究

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Ionic liquids are recently considered as an alternation to surfactants for their application in enhanced oil recovery (EOR) because of their promising surface-active properties. In the present study, the ability of a series of synthesized ionic liquids (C(g)mimBF(4) , C(10)mimBF(4) and C-12 mimBF(4)) to reduce interfacial tension (IFT) and change the wettability of oil-wet rock have been investigated. Results demonstrated that all three synthesized ionic liquids enhanced interfacial properties and rock-wetting characteristics. The ionic liquids were able to significantly reduce IFT and remained stable at high temperature and saline conditions. Addition of organic alkali also showed a synergistic effect on IFT reduction between crude oil and ionic liquid solution. FT1R and zeta potential measurements were conducted to establish the mechanism of wettability alteration of oil-wet rock. Emulsification tests confirmed the capability of the ionic liquids to emulsify the trapped oil, which is an important mechanism of chemical EOR. The loss of ionic liquids by adsorption on rock surface was studied, and the adsorption data were analyzed by Langmuir and Freundlich models. Microemulsion study showed Winsor type III behavior with ultra-low IFT, which is beneficial for EOR application. Sand pack flooding experiments were conducted to study the EOR efficiency using the synthesized ionic liquids and around 32.28% additional recovery was observed after the conventional water flooding with injection of ionic liquid, polymer and alkali slugs. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：离子液体最近被认为是表面活性剂的交替，因为它们在增强的溢油（EOR）中的应用，因为它们具有有希望的表面活性性质。在本研究中，一系列合成的离子液体（C（g）mimbf（4），c（10）mimbf（4）和c-12 mimbf（4））的能力，以降低界面张力（IFT）和变化研究了油湿岩的润湿性。结果表明，所有三种合成的离子液体增强了界面性质和岩石润湿特性。离子液体能够显着减少IFT并在高温和盐水条件下保持稳定。添加有机碱还对原油和离子液体溶液之间的IFT降低也表现出协同作用。进行FT1R和Zeta电位测量以确定油湿岩的润湿性改变机制。乳化试验证实了离子液体乳化的捕获油的能力，这是化学EOR的重要机制。研究了通过对岩石表面吸附的离子液体的损失，并通过Langmuir和Freundlich模型分析了吸附数据。微乳液研究显示了用超低IFT的III型行为，对EOR应用有益。进行砂包泛洪实验以研究使用合成的离子液体研究EOR效率，并且在具有离子液体，聚合物和碱金属块的常规喷水后观察到额外的恢复约为32.28％。 （c）2018年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

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