辽河油区计算稠油粘度通用方程

General expression of heavy oil viscosity

根据辽河油区6个油田22个典型稠油区块44条粘温曲线,运用统计学原理,建立了计算原油粘度通用方程,由此计算各种稠油在任一温度下的脱气原油粘度。该方法最大相对误差为9.9%,平均相对误差为3.3%。应用该方程可为稠油分类、流体评价和稠油油藏开发提供可靠依据。

A general equation for calculating crude oil viscosity is established by using statistic theory according to 44 viscosity-temperature curves from 22 typical heavy oil blocks of 6 oil fields in Liaohe oil province,hence to calculate the viscosity of degassed crude at arbitrary temperature.The maximum relative error of the method is 9.9%,average relative error is 3.3%.This equation can provide reference to heavy oil classification,fluid evaluation and heavy oil reservoir development.