纯组分高压流体的粘度模型  

A MODEL FOR CALCULATING VISCOSITY OF HIGH PRESSURE FLUIDS WITH PURE SUBSTANCES/

作　　者：郭绪强[1] 荣淑霞[1] 杨继涛[1] 杨兰英 郭天民[1] 

机构地区：[1]石油大学流体高压相态及物性研究实验室

出　　处：《石油大学学报（自然科学版）》1998年第6期95-97,共3页Journal of the University of Petroleum,China(Edition of Natural Science)

摘　　要：基于ｐＶＴ和Ｔμｐ图形的相似性，并结合两参数ＰｅｎｇＲｏｂｉｎｓｏｎ状态方程，建立了一个能够同时预测纯流体气、液相粘度的统一模型。该模型能够同时描述气、液相及超临界流体的粘度随温度、压力和组成的变化情况。模型的纯组分参数已普遍化为对比温度、对比压力和偏心因子的函数。在较宽的温度、压力范围内（Ｔ＝２８０～６００Ｋ，ｐ＝０．１～１００ＭＰａ），对２２种烷烃、二氧化碳和氮气的粘度进行了计算，其相对平均误差为７．０１％．On the basis of the similarity between curves of p V T and T μ p , Peng Robinson equation of state was modified, and an unified model for viscosities of gas and liquid was developed. The overall average absolute deviation between calculated results and experimental data from 22 paraffins,carbon dioxide and nitrogen (4250 data points selected in total) is 7.01%. The calculated and predicted results show that this model can be used to calculate the viscosity of pure components in the states of gas phase, liquid phase and near critical region. The parameters of the calculation model are generalized as functions of reduced temperature, reduced pressure and acentric factor.

关 键 词：高压 烃 状态方程 粘度 模型 油气藏 数值模拟 

分 类 号：TE319[石油与天然气工程—油气田开发工程]