期刊
APPLIED SCIENCES-BASEL
卷 9, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/app9102155
关键词
Foaming method; foam system; liquid composition; ultra-low oil-liquid interfacial tension
类别
资金
- National Natural Science Foundation of China [51604288]
- Science Foundation of China University of Petroleum, Beijing [2462018BJB002]
- Beijing Municipal Natural Science Foundation [2184119]
The liquid phase of foam systems plays a major role in improving the fluidity of oil, by reducing oil viscosity and stripping oil from rock surfaces during foam-flooding processes. Improving the oil displacement capacity of the foam's liquid phase could lead to significant improvement in foam-flooding effects. Oil-liquid interfacial tension (IFT) is an important indicator of the oil displacement capacity of a liquid. In this study, several surfactants were used as foaming agents, and polymers were used as foam stabilizers. Foaming was induced using a Waring blender stirring method. Foam with an oil-liquid IFT of less than 10-3 mN/m was prepared after a series of adjustments to the liquid composition. This study verified the possibility of a foam system with both an ultra-low oil-liquid IFT and high foaming properties. Our results provide insight into a means of optimizing foam fluids for enhanced oil recovery.
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