泡沫调剖体系在多孔介质中能够有效改善流度比，调整吸水剖面，提高洗油效率，但是体系稳定性较差。
Foam profile controlling system can improve the mobility ratio, adjust the water injection profile and improve the efficiency of oil washing in porous media, but the system has poor stability.
对于多油层非均质油藏，层间差异会导致吸水剖面不均匀，影响水驱效率。
In multilayer heterogeneous reservoir, the interlayer difference would lead to nonuniformity of injection profile and influence water displacement efficiency.
水泵吸水池设计的合理与否，会直接影响到泵站的运行效率和安全。
The design of the pump sump has a directly effect on the running efficiency and security performance of the pump system.
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