根据求得的时域内抽油杆柱受力变形值以及与油管柱碰撞接触力，计算了抽油杆柱动强度和扶正器安放位置。
The dynamic strength of rod string and the mount position of centralizer were calculated, according to the acquired deformation of rod string and its impact contact force with tube in the time domain.
柱塞气举是通过在油管柱内上下循环运动的柱塞把地层产液举出地面的人工举升方法。
With the increasing of oil well and producing reserves, it is difficult for conventional artificial lift technology to meet the producing need.
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