The tubing centralizer worked by hydraulic, solved the problem of tubing screw deflection and met the need of production.
该扶正器采用液压式扶正，解决了油管偏螺纹这一难题，满足了生产的需要。
On the basis of the theoretical and experimental research, the preventive measures are discussed such as installing tubing anchor, rotary device of rod string and centralizer.
在理论分析和试验研究的基础上，针对井下的杆管偏磨问题，对安装油管锚定装置、旋转抽油杆装置和抽油杆扶正器这三种预防措施进行了探讨。
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