A method to enhance rod pumping efficiency 一种提高有杆泵抽油系统效率的方法
2.
The design technology of rod pump well with no tubing raising system 无油管有杆泵井举升工艺设计技术
3.
Sucker rod pumping is the most popular means of artificially lift in the oil fields . the performance of sucker rod pump has close relation to economic benefit of oil field 抽油泵作为有杆泵抽油系统中的核心设备，其性能的好坏直接关系到油田经济效益的高低。
