文献类型：期刊文献

中文题名：离子液体在三次采油中的应用基础研究

英文题名：Applied Basic Research on Ionic Liquids in Enhanced Oil Recovery

作者：尚亚卓[1];宋伟杰[1];赵娜[1];李红[1];刘洪来[1]

机构：[1]结构可控先进功能材料及其制备教育部重点实验室(华东理工大学),上海200237

年份：2010

卷号：27

期号：3

起止页码：306

中文期刊名：油田化学

外文期刊名：Oilfield Chemistry

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金"化工新材料的纳微结构及其制备和性能研究"(项目编号20736002);教育部长江学者与创新团队计划项目"大型石油化工反应过程工程化理论方法与关键技术"(项目编号IRT0721);高等学校学科创新引智计划项目"化学反应工程科学与技术创新引智基地"(项目编号B08021);教育部留学回国人员科研启动基金资助项目"偶联表面活性剂和DNA相互作用研究"

语种：中文

中文关键词：离子液体;溴化1-辛基-3-甲基咪唑;表面活性剂;浊度;界面张力;黏度

外文关键词：ionic liquids; 1-octyl-3-methylimidazolium bromide; surfactant; turbidity; interfacial tension; viscosity

摘要：研究了溴化1-辛基-3-甲基咪唑(C8mimBr)离子液体浓度对表面活性剂溶液浊度、黏度、油/水界面张力和温度对黏度、油/水界面张力的影响。25℃在0.05%乙撑-双(N-乙磺酸-十二酰胺)钠盐(DTM-12)溶液中加入0.2%C8mimBr即可使溶液浊度从135 NTU降至43 NTU,大大提高了表面活性剂的溶解性能,起到助溶剂的作用。C8mimBr与DTM-12有良好的协同作用,少量离子液体即可大幅降低0.03%DTM-12/1.2%NaOH/C8mimBr混合溶液与大庆原油间的界面张力,当C8mimBr加量为0.1%时,40℃两相的界面张力由6.52×10-1mN/m降至1.12×10-2mN/m。C8mimBr可以改善羧酸盐类偶联表面活性剂DBS-12溶液的黏度,随C8mimBr的増加,1.5%DBS-12溶液黏度先增加后降低;当C8mimBr含量为1.2%时,黏度达到最大,40℃、50℃、60℃的黏度分别为52、47、44 mPa.s。随温度升高,原油与0.03%DTM-12/1.2%NaOH/C8mimBr混合溶液的界面张力和1.5%DBS-12/C8mimBr混合溶液的黏度略有降低。将离子液体与表面活性剂复配有望用作三次采油驱油液,对提高石油采收率有着重要的意义。
The effects of ionic liquids（1-octyl-3-methylimidazolium bromide,C8mimBr） concentration on the turbidity,viscosity of surfactant solution and oil/water interfacial tension and of temperature on the viscosity and oil/water interfacial tension were studied.The addition of ionic liquids could not only act as the co-solvent to improve the solubility of surfactants,but also decrease the interfacial tension between the mixed solution and the crude oil because of the good synergistic effect between C8mimBr and DTM-12.The turbidity of 0.05% DTM-12 solution decreased from 135 NTU to 43 NTU after 0.2% C8mimBr was added at 25℃.The interfacial tension between mixed solution（0.03% DTM-12/1.2% NaOH/C8mimBr） and crude oil decreased dramatically from 6.52×10-1 mN/m to 1.12×10-2 mN/m after 0.1% C8mimBr was added at 40℃.C8mimBr could improve the viscosity of DBS-12 surfactant solution.The viscosity of 1.5% DBS-12 solution increased first and then decreased with the addition of C8mimBr.The maximum values at 40℃、50℃、60℃ were 52、47、44 mPa·s respectively when the concentration of C8mimBr was of 1.2%.The interfacial tension between mixed solution（0.03% DTM-12/1.2% NaOH/C8mimBr） and oil and the viscosity of the mixed solution（1.5% DBS-12/C8mimBr） decreased slightly with increasing the temperature.The complexation of ionic liquids and surfactants has the potential to be used in ASP flooding which has great significance in enhanced oil recovery.