Two-phase viscosity modifier and preparation method thereof

The invention relates to the technical field of oilfield exploitation, in particular to a two-phase viscosity modifier and a preparation method thereof. The two-phase viscosity modifier is prepared by carrying out a copolymerization reaction on acrylamide, methoxyethyl acrylate and sodium p-styrenesulfonate. According to the invention, the two-phase viscosity modifier acts on an oil phase and a water phase, so that the viscosity of an aqueous solution can be remarkably increased, and the viscosity of thick oil can be reduced by emulsifying the aqueous solution and the thick oil; and in oil reservoir exploitation, the two-phase viscosity modifier can greatly change the oil-water viscosity ratio, the oilfield development effect is improved, and the problem that existing thick oil exploitation is difficult is solved. 本发明涉及油田开采技术领域，具体涉及一种两相粘度调节剂及其制备方法。所述两相粘度调节剂由丙烯酰胺、丙烯酸甲氧基乙酯、对苯乙烯磺酸钠进行共聚反应制备得到。本发明所述两相粘度调节剂作用于油水两相，可显著增加水溶液粘度，将其水溶液与稠油乳化可降低稠油粘度。在油藏开采中所述两相粘度调节剂可大幅改变油水粘度比，提高油田开发效果，解决了现有稠油开采难度大的问题。