温度响应型蠕虫胶束体系抗盐性能研究  

Salt Resistance Properties of Temperature-responsive Wormlike Micelle System

作　　者：陈维玉[1] 刘巍洋 曲广淼[1] 丁伟[1] 

机构地区：[1]东北石油大学化学化工学院,黑龙江大庆163318

出　　处：《油田化学》2017年第1期132-136,共5页Oilfield Chemistry

基　　金：十二五国家重大专项"大型油气田及煤层气开发"之国家科技重大专项重点项目"胜利油田特高含水期提高采收率技术"之课题四"高温高盐油田化学驱提高采收率技术"(项目编号2011ZX05011-004)

摘　　要：为提高温度响应型蠕虫胶束的抗盐性,采用阴离子表面活性剂十八烷基苯磺酸钠(SOBS)和两性离子表面活性剂十八烷基羟基磺基甜菜碱(ODAHPS)制得蠕虫胶束体系,研究了温度对胶束黏度的影响,考察了胶束的抗盐和抗碱性能。研究结果表明,当ODAHPS和SOBS的摩尔比为7时,胶束的响应温度为50℃;胶束黏度随着温度升高呈现先增加后降低的趋势;达到响应温度后,胶束黏度随表面活性剂总浓度的增加而增大;随角频率的增加,胶束溶液逐渐由黏性流体向弹性流体转变;胶束黏度随无机盐浓度的增加先增大后降低;胶束耐碱性能良好,当弱碱和强碱质量浓度分别为2.5 g/L和12 g/L时,胶束黏度分别为133和196 mPa·s,可以作为驱油剂使用。In order to improve the salt resistance of temperature-responsive wormlike micelle system, a wormlike micelle system was prepared using anionic surfactant sodium octadecyl benzene sulfonate （SOBS） and amphoteric surfactant octadecyl hydroxy sulfobetaine （ODAHPS）. The effect of temperature on the viscosity of micelle was studied, and the salt resistance and alkali tolerance of micelle were investigated. The results showed that when the molar ratio of ODAHPS and SOBS was 7, the responsive temperature of micelle was 50℃. The viscosity of micelle increased first and then decreased with increasing temperature. After the responsive temperature was reached, the viscosity of micelle increased with the increase of surfactant concentration. The micellar solution gradually transformed from viscous fluid to elastic fluid with the increase of angular frequency. The viscosity of micelle increased first and then decreased with increasing salt concentration. The micelle system had excellent alkali-tolerance capacity. When the mass concentration of weak base and strong base was 2.5 and 12 g/L, the viscosity of micelle was 133 and 196 mPa·s respectively. This temperature-responsive wormlike micelle svstem could be used as oil displacement agent.

关 键 词：温度响应 蠕虫胶束 十八烷基苯磺酸钠 十八烷基羟基磺基甜菜碱 表面活性剂 抗盐性 耐碱性 

分 类 号：O647.2[理学—物理化学] TE39[理学—化学]