王利生, 郭天民. A UNIFIED VISCOSITY MODEL BASED ON PATEL-TEJA EQUATION OF STATE(Ⅱ)APPLICATION IN PREDICTING VISCOSITIES OF RESERVOIR FLUID[J]. CIESC Journal, 1993, (6).
王利生, 郭天民. A UNIFIED VISCOSITY MODEL BASED ON PATEL-TEJA EQUATION OF STATE(Ⅱ)APPLICATION IN PREDICTING VISCOSITIES OF RESERVOIR FLUID[J]. CIESC Journal, 1993, (6).DOI:
Based on the similarity between pVT and Tμp relationships
Patel - Teja equation of state was used to develop a unified viscosity model for both pure gases and liquids. By using a general mixing rule for the EOS parameters
the viscosity equation was used to predict the viscosities of binary light hydrocarbon mixtures (a total of 1894 data points) and simulated natural gases
the overall average absolute deviations being 11. 93% and 16. 75%
respectively. For reservoir crude oils and natural gases under high pressure
significant improvement in viscosity predictions was observed as compared with the viscosity model currently used for reservoir mixtures.