李莺歌

副教授

副教授 硕士生导师

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所在单位:电子教研室

学历:博士研究生

办公地点:青岛市崂山区松岭路99号 青岛科技大学 自动化与电子工程学院

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Pseudo-plastic Behavior of a Film Foam Flow with Carbon Dioxide as the Internal Gas Phase

发布时间:2020-12-04 点击次数:

关键字:pseudo-plastic behavior; film foam flow; Carbon Dioxide; internal gas phase
摘要:There are many attractive features for using CO2 foam injection in Enhanced Oil Recovery (EOR) processes. For understanding CO2 foam rheology in porous media, an experimental study is reported in this paper concerning CO2 film foam flow characteristics in a vertical straight tube. Foam is treated as non-Newtonian fluid and its pseudo-plastic behavior is investigated based on power law constitutive model. It is observed the CO2 film foam flow shows clear shear-thinning behavior, with flow consistency coefficient of K=0.15 and flow behavior index of n=0.48. The apparent viscosity of flowing CO2 film foam is 0.020pa.s under the shear rate of 50s(-1) and 0.004pa.s under the shear rate of 1000s(-1), which are 19 and 3 times higher than the single phase water. It is also found CO2 foam has lower apparent viscosity than the foam with air as the internal gas phase, which is in consistence with experimental observations for lower CO2 foam flow resistance in porous media.
卷号:221
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