The paper analyzed the features and reasons of tubing and rod eccentric wear in middle-later period of Huanxiling oilfield development, and put forward preventive measures of eccentric wear.

• 从欢喜岭油田生产实际出发,较全面地分析了欢喜岭油田开发中后期后,出现杆、管严重偏磨的特点、偏磨原因及防偏磨对策;