摘要
通过实验研究稠油/水乳状液的表观粘度与分散相液滴直径、含水率和温度的关系。分散相液滴直径越大,表观粘度越小;与轻质油/水乳状液不同,稠油/水乳状液在较低的含水率时即表现出很强的剪切稀释性;温度变化对稠油/水乳状液的表观粘度有显著影响而对相对粘度影响很小。在考虑了剪切率的相对粘度预测模型中,Pal(1989)模型的预测结果与实际测量值较为接近。
The relationships of apparent viscosity of heavy water-in-oil emulsion to the droplet size, the volume fraction of water and temperature were experimentally studied. The experiment shows that the viscosity decreases with the increase of the droplet size; and being different from light water-in-oil emulsion, the heavy water-in-oil emulsion presents a strong shear-thinning behavior even in lower water content; temperature change affects obviously the viscosity of concentrated water-in-oil emulsion, but it has a little impact on the relative viscosity. The predicted model for relative viscosity of Pal （1989） fits the experimental data well by taking into account the shear rate.
出处
《化学工程》
CAS
CSCD
北大核心
2006年第9期39-42,共4页
Chemical Engineering(China)
基金
国家自然科学基金项目(50474061)
关键词
稠油
乳状液
粘度
heavy oil
emulsion
viscosity
