石油勘探与开发2013，Vol.40Issue(1)：121-124,4.
非牛顿原油包水乳状液的表观黏度预测
Prediction of apparent viscosity of non-Newtonian water-in-crude oil emulsions
摘要
Abstract
On the basis of the effective medium theory and the classical viscosity prediction model proposed by Pal et al, the apparent viscosity and rheological properties of the water in crude oil emulsion with natural surface active components such as asphaltene and resin are predicted. The adsorption and entrainment of continuous phase by the surfactants molecular, which leads to the increment of effective water fraction, is the inducement of Non-Newtonian behavior in the bulk emulsion. The two actions of promoting and counteracting effects on the effective water fraction are considered separately and represented by Water Fraction Factor and Particle Reynolds Number Factor respectively. The Water Fraction Factor takes into account the positive effect of water fraction and drop size distribution in microscope, while the Particle Reynolds Number Factor reflects the negative effect of shear rate at different drop size. A new prediction model taking the influence of nearly all factors such as drop size distribution, shear rate, water fraction into consideration was built. Measured viscosity of emulsion of the crude oil and water from an oilfield was used to verify the predicted results of the model, which proves that the new model is high in accuracy with a maximum relative error of 11.44%.关键词
原油包水乳状液/非牛顿性/表观黏度/液滴微观分布/预测模型Key words
water-in-crude oil emulsion/ non-Newtonian property/ apparent viscosity/ drop size distribution/ prediction model分类
能源科技引用本文复制引用
王玮,王鹏宇,李楷,段纪淼,武坤一,宫敬..非牛顿原油包水乳状液的表观黏度预测[J].石油勘探与开发,2013,40(1):121-124,4.基金项目
国家自然科学基金项目(51104167) （51104167）
中国石油科技创新基金(2010D-5006-0604) （2010D-5006-0604）
教育部博士点基金(20110007120008) （20110007120008）
