Other possible reasons include problems with the oil pump, rod and main bearing clearances, camshaft stopping playing, or cam bearings and lifters.
其他可能的原因包括油泵问题、杆和主轴承的空隙、凸轮轴停止工作、或者凸轮的方位和升降。
Other possible reasons include problems with the oil pump, rod and main bearing clearances, camshaft end play, or CAM bearings and lifters.
其他可能的原因包括油泵问题，杆和柱轴承之间的空隙，凸轮轴停止工作或者凸轮的方位和升降等。
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%.
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。
The corrosion and wear of rod pump well cause the damage of downhole equipment and seriously affect the normal production of oil well.
有杆泵井中的腐蚀和磨损，造成油井的井下设备损坏，严重影响油井的正常生产。
Due to the special structure of controlled direction well, it can lead to severe abrasion even jamming if not adopting any measure when using progressing cavity pump rod to pump oil.
由于定向井井身结构特殊，利用螺杆泵进行抽油时如不采取任何措施势必造成杆柱严重磨损甚至卡死。
Active water or light oil is sent downhole through hollow rod to reduce oil flow resistance, thus producing heavy oil from deep formation through screw pump.
利用空心杆向井筒内掺入活性水或稀油，降低油流阻力，实现应用螺杆泵开采深层稠油。
This paper introduces the operating principle of the combinatorial layering oil production of the rod jet pump, and the parameter optimization as well as field application.
介绍了有杆射流泵组合分采的工作原理、参数优选及现场应用情况。
This paper introduces the operating principle of the combinatorial layering oil production of the rod jet pump, and the parameter optimization as well as field application.
介绍了有杆射流泵组合分采的工作原理、参数优选及现场应用情况。
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