缔合聚合物对泡沫驱油体系流变性的影响

The Effect of Associative Polymer on Rheology of Foam Flooding System

聚合物作为稳泡剂对泡沫驱油体系的性能有着重要的影响。首先考察了不同聚合物对泡沫综合值的影响,发现相同浓度下使用缔合聚合物WP-1的泡沫体系可以获得最佳起泡性和稳泡性,随后进一步研究了缔合聚合物对该泡沫体系表观黏度、抗温性能、剪切稀释特性、黏弹性等流变特性的影响。试验结果表明该体系较好地符合宾汉流体特征,并且发现缔合聚合物可以通过缔合效应和聚表相互作用显著增加泡沫体系的流变性能。

As foam stabilizer,polymers had important effect on the properties of foam flooding system.The effect of different polymers on the integral values of foam was investigared,it was found out that an associative polymer WP-1could be used to obtain optimum properties of foaminess and its stability.Furthermore,its rheology including apparent viscosity,temperature stability,shear thinning property and viscoelasticity was studied.The results show that this system agree well with the Binghan fluid property,and the associative polymer can enhance the rheology of the foam system through associative effect and interaction of polymer and surfactant.