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本文针对我国表面活性剂/聚合物驱油的实际,研究了石油磺酸盐(PS)、正丁醇(R_4OH)和矿化水对水解聚丙烯酰胺(HPAM)溶液流变性的影响。结果表明,PS对HPAM溶液流变性的影响与介质的矿化度有关:非矿化水介质中,PS对HPAM溶液性质的影响类似于无机盐,能降低HPAM溶液的表现粘度(η_α)和稠度系数(k);当系统中含有一定浓度矿化水时,PS却能升高系统的η_α和k值,降低流型指数(n),使系统的非牛顿性增强。在含有PS和矿化水的HPAM系统中加入R_4OH,系统的η_α和k值会有所增加。
In this paper, the effects of petroleum sulfonate (PS), n-butanol (R_4OH) and mineralized water on the rheological properties of hydrolyzed polyacrylamide (HPAM) solution were studied in the light of the actual situation of surfactant / polymer flooding in China. The results showed that the influence of PS on the rheological properties of HPAM solution was related to the mineralization degree of the medium. Among the non-mineralized aqueous media, the effect of PS on the properties of HPAM solution was similar to that of inorganic salt, which could reduce the apparent viscosity (η_α) and consistency Coefficient (k). When the system contains a certain concentration of mineralized water, PS can increase the η_α and k values of the system, reduce the flow index (n), and enhance the non-Newtonian system. The addition of R_4OH to the HPAM system containing PS and mineralized water increases the η_α and k values of the system.