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六十年代始,一些油田为提高三次采油收率而开发一种价格低、效率高的表活剂,即石油磺酸盐。将它和盐水、醇及原油以一定比例混配后注入油层中,由于它能同油层中的残余油混相,清除油水间界面,使残余油参于流动而驱向生产井,增加了采油量而有很大的经济效益。但石油磺酸盐是十碳到十六碳的烷烃混合物的磺酸盐,是结构和分子量都很复杂的多分散系,其在井下的作用
Beginning in the 1960s, some oilfields developed a low-price and high-efficiency surfactant, known as petroleum sulfonate, to increase tertiary recovery. After it is mixed with brine, alcohol and crude oil in a certain proportion, it is injected into the oil layer. Because it can miscible with the residual oil in the oil layer, the interface between oil and water can be removed and the remaining oil can flow into the production well to flow and increase the oil recovery And great economic benefits. However, petroleum sulfonates are sulfonates of alkane mixtures of ten to sixteen carbons and are polydisperse systems that are both complex in structure and molecular weight and which function downhole