控制油管伸缩提高泵效的理论分析及措施  

Improving pump efficiency by controlling stretching and shrinking of tubing string

作　　者：穆修强[1] 王禾丁[1] 王文娇 王志敏[1] 

机构地区：[1]胜利石油管理局采油工艺研究院,山东省东营市257000

出　　处：《石油机械》1997年第8期27-30,共4页China Petroleum Machinery

摘　　要：在有杆泵抽油过程中，因油管弹性伸缩，抽油泵冲程损失达10％以上。在对油管柱进行受力分析后，计算了其伸缩量，并提出用封隔器、机械式油管张力锚和液压式油管锚锚定油管柱，控制油管柱伸缩。这样不仅可以减少冲程损失，提高泵效3％－15％，而且还能改善抽油泵的受力状况，延长泵免修期以及抽油杆和油管的使用寿命。比较3种控制油管伸缩工具，以液压式油管钱控制油管柱伸缩效果最好，操作方便，价格低廉，应大力推广应用。During oil recovery by rod pump, owing to the elastic stretching and shrinking of the tubing string, the stroke loss of the subsurface pump reaches 10%. After a force analysis of the tubing string, the stretching and shrinking rate of the tubing string is calculated, and the measures for controlling the stretching and shrinking of the tubing string are presented. By adopting these measures, the stroke loss of the pump can be decreased, the pump efficiency can be improved by 3% ~ 15%, and the force condition of the subsurface pump can be improved, the overhaul peroid of the pump can be prolonged and the servic life of the ed and the tubing can be improved. Comparison of three kinds of tools for controlling the stretching and shrinking of the tubing string shows that the hydraulic tubing anchor is the best with convenient operation and low price, therefore it should be popularized.

关 键 词：油管伸缩 冲程损失 油田 抽油泵 

分 类 号：TE933.302[石油与天然气工程—石油机械设备]