适用于高矿化度油藏的醇(酚)聚氧烯基醚磺酸盐合成进展

Progress of synthesis of alcohol/phenol polyoxyalkyl ether sulfonates for high salinity reservoirs

醇(酚)聚氧烯基醚磺酸盐具有优良的耐盐、耐高温水解、HLB值可调及配伍性能,在高矿化度油藏开采领域具有广泛的应用潜力。本文介绍了几种常见醇(酚)聚氧烯基醚磺酸盐表面活性剂的结构,分析了其在高矿化度、高二价离子油藏中的作用特征,综述了亚硫酸盐磺化工艺、磺烷基化工艺和硫酸酯基团转化等磺化工艺,并从原料性能、收率、反应路线及工艺流程等角度对各工艺进行了分析比较,总结了各工艺路线的优、缺点,指出如能对基团转化过程中的水解程度加以控制,以脂肪醇聚氧乙烯醚硫酸钠为原料的硫酸酯基团转化工艺具有较好的工业应用前景。

Alcohol/phenol polyoxyalkyl ether sulfonates have attracted increasing interests in their potential wide application to oil recovery for high salinity reservoirs due to good salt resistance,high temperature hydrolysis resistance,HLB adjustability and good compatibility with producing formation.The typical structures of alcohol/ phenol polyoxyalkyl ether sulfonates are introduced,their performance in high salinity reservoirs with high divalent cations is analyzed,and the progress of alcohol/phenol polyoxyalkyl ether sulfonates synthesis is reviewed.The sulfonation technologies include sulfite sulfonation,sulfoalkylation and sulfate group transformation.The advantages and disadvantages of each synthesis technology are discussed in terms of raw materials,yield,synthesis route and process.If hydrolysis of fatty alcohol polyoxyethylene ether sulfate sodium can be controlled,sulfate group transformation with AES as raw material has a bright future in industrial application.