The prediction of spontaneous oil-water imbibition in composite capillary

被引：0
|
作者：
Lin Wang [1 ,2 ]
Feiying Ma [1 ]
Yongming He [2 ]
Dawei Liu [1 ]
机构：
[1] Petroleum Engineering College, Guangdong University of Petrochemical Technology
[2] State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Chengdu University of
来源：
Petroleum | 2022年 / 01期
关键词：
D O I：
暂无
中图分类号：
O647.5 [湿润现象];
学科分类号：
摘要：
In view of the classical Lucas-Washburn equation, which can only describe the spontaneous imbibition of single wetted capillary, a tilted composite capillary model with circular cross section, composed of different wettability capillary wall was established. The model can describe the spontaneous oil-water imbibition of water-wet capillary, oil-wet capillary and mixed wetting capillary. Through numerical solution of the model equation, it is found that the component content of the capillary walls, the capillary radius and the oil-water viscosity ratio have great effects on the spontaneous oil-water imbibition. Effects of capillary inclination angle and inertia force on spontaneous oil-water imbibition are related to the capillary scale. Effects of capillary inclination angle and inertia force can be ignored in small radius capillary, while effects of inclination angle and inertia force can not be ignored in large radius capillary.
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页码：84 / 91
页数：8
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