In beam pump system, usually using tubing anchor to fix pump, and using bleeder Installed on the tubing pump to improve its working environment.
在有杆泵系统中，经常采用油管锚定来改善工况，通过在管式泵的上方安装泄油器来改善油井施工作业时的工作环境。
By analyzing its working principle and the cause, methods to solve the problem were put forward in order to proper use the tester to test tubing reliably and effectively.
结合该试验机的原理分析了故障产生的原因，提出了排除故障的方法，有利于使用和维护该试压机，可靠、高效地对油管试压。
This paper introduces the structure, working principle, using request, ground test and field application of the tubing dropping control unit.
文章介绍了油管防落装置的结构、工作原理、使用要求、地面试验和现场应用情况。
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