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抽油泵在抽汲过程中,泵腔内存在游离气、溶解气及凝析气,这些气体是影响抽油泵泵效的主要因素。在含气抽油井中,要防止抽油泵气锁和提高泵效,需要采取综合防气的措施,除应适当增加沉没度、加大冲程、降低冲次、定期放掉套管气、用大过流面积的高性能井下油气分离器(或气锚)外,还需要使用具有防气锁和提高泵效的特种结构抽油泵。
Pump pumping in the pumping process, the pump cavity free gas, dissolved gas and condensate gas, these gases are the main factors that affect the pumping pump efficiency. In the gas pumping wells, to prevent gas pumping lock and improve pump efficiency, the need to take a comprehensive anti-gas measures, in addition should be appropriate to increase the degree of submergence, increase the stroke, reduce the impact of the regular release of casing gas, with large Flow area of high-performance downhole oil and gas separator (or gas anchor), but also need to use a special structure with anti-air lock and pump efficiency pump.