摘要
测定了不同含油率的大港羊三木原油／碱－聚合物水溶波乳状液的流变性，用七个流变方程对实测结果进行了曲线拟合，发现此乳状液服从Ｃａｓｓｏｎ方程，结合显微观察结果讨论并解释了乳状液粘度和ＣＡｓｓｏｎ方程参数随含油率和剪切速率变化的规律。
The rheology of the emulsions of oil contents 70% ,80%,90%, and 95% prepared from an acidic crude oil(acid value 1.95 mg KOH/g) and an alkaline/polymer solution(0. 5% NaCI+750 mg/1-HPAM) is determined and their morphologies are studied under micrascope while determinations being performed. Of seven rheological medels including Bingham's, power-laws' and Herschel-Bulkley's, Casson's medel gives the best curve-fittings of experimental data obtained both with increasing(from 0 to 50 s-1) and decreasing(from 50 to 0 s-1) shear rate for all these emulsions. The parameters of the model, yield stress and Casson's viscosity, are tabulated. The changes in emulsion viscosity and model parameters are explained, in particular, in terms of the microsopic observations.
出处
《油田化学》
CAS
CSCD
北大核心
1994年第1期77-79,83,共4页
Oilfield Chemistry
关键词
碱
高聚物
流变性
驱油
混相驱油
Alkaline/Polymer Flooding Solution,Acidic Crude Oil,Emulsions,Rheololgical Properties,Casson's Rheological Equation
