For screw pump well, the following accidents, such as rod breaking, wax locking and pump burning, always happened.

螺杆泵井运行过程中经常出现杆柱断脱、蜡卡、烧泵等现象。

The utility model belongs to the torque testing device of the screw pump well on an oilfield pump recovery wellhead.

本实用新型属于油田机采井口上的螺杆泵井扭矩测试装置。

According to the energy loss of every part of screw pump well, established system efficiency analysis model for the well.

根据螺杆泵井各个部分运动特点及能量损失情况，建立了螺杆泵井系统效率分析模型。

The submersible electric pump well system consists of such three subsystems as the oil well, submersible electric pump and pipeline.

潜油电泵井系统由油井、潜油电泵机组和管路三个子系统组成，三个子系统既有区别又相互联系。

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。