A kind of compounded combinational surfactant denoted CRY-1 was synthesized in laboratory investigated through the optimization of formulations. The compounded combinational surfactant was composed of 35% mixed surfactants as main agent,20%-25% aliphatic alcoho as auxiliary agent, 25% petroleum sulfonat KPT-10 and 15% -20%auxiliarie. The properties of the product were determined. The cmc values and corespond-ing surface tension and interfacial tension were determined respectively at 30 ℃ ; the properties of temperature and salt and acid/alkali resistance were also determined. The results show that the compounded combinational surfactant could form ultralo interfacial tension,had good temperature and salt resistance properties and good acid/alkali resistance properties. So it is a good chemical agent used in tertiary oil recovery.%实验室通过配方优选,合成了一种复合表面活性剂,记作CRY-1.该复合表面活性剂主要由35％的复合表面活性剂主剂、20％ -25％多元醇作为辅剂和25％石油磺酸盐KPT-10,15％-20％添加剂组成.实验室对其性能进行了测试,分别测试了25℃下的表面张力和临界胶束浓度、30℃下水/煤油下的界面张力、抗盐耐温性能和耐酸碱性能.实验发现,该复合表面活性能形成较低的界面张力,抗温抗盐性能优异,耐酸碱性能强,是一种良好的三次采油化学剂.
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