【摘要】 根据ｖａｎｄｅｒＷａａｌｓ单流体混合规则，将基于两参数ＰｅｎｇＲｏｂｉｎｓｏｎ状态方程的流体粘度计算模型应用于烃类混合物及油气藏流体粘度的计算。对３种二元烃类混合物（甲烷丙烷、甲烷正丁烷和甲烷正癸烷）的粘度进行了计算，２４３９个数据点的平均相对误差为１６．７２％．计算了９种天然气及１７种油藏原油的粘度，其平均相对误差分别为９．８０％和１７．２９％．这种模型优于现有的油气藏流体粘度模型。更多还原

【Abstract】 By using the van der Waals single fluid mixing rules, the viscosity model established on the basis of two parameters Peng Robinson state equation, namely PR viscosity model, was used to predict the viscosities of mixtures and reservoir fluids. The viscosities of three kinds of binary hydrocarbon mixtures, i.e. methane/ n decane, methane/propane and methane/ n butane were calculated by using the model. The average relative error of 2439 data points is 16.27 percent. The viscosities of nine natural gases and crude oils from seventeen reservoirs were predicted. The overall average relative errors are 9.8 percent and 17.29 percent respectively. PR viscosity model is superior to the viscosity models currently used in calculating viscosities of fluid mixtures in oil gas reservoirs更多还原