石油粘度关联预测模型研究进展

Development on Viscosity Correlation Model of Crude Oil

总结了见诸文献的石油粘度关联模型,分析了各种类型石油粘度的影响因素,评述了各类模型的优点和不足。认为在关联预测石油粘度,尤其是高蜡、胶质和沥青质含量石油时,由于石油的非牛顿性表现很明显,必须综合考虑石油的组成、温度、压力、溶解气、石油的乳化状况、水含量等因素才能作出比较准确的关联。

The correlation models of crude oil viscosity were reviewed. Its influence factor was analyzed. Advan- tage and deficiency of the models were compared. In the case of petroleum containing vast of wax or heavy frac- tions, such as resins and asphaltene, when non-Newtonian behavior is evident, the following factor, such as com- position of the crude, temperature, pressure, dissolved gas, state of the crude emulsification, content of water etc, should be were taken into account for a accurate correlation.