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针对胜坨油田有杆泵井检泵周期比较短的突出问题，进行了两次有杆泵井失效原因调查与分析。指出抽油泵工况变差、地层出砂日趋严重、产出液腐蚀性强、润滑介质发生变化、泵的材质和处理不适应工作介质，以及泵的部分结构设计不合理是有杆泵井的主要失效因素。在此基础上，改进了常规抽油泵的部分结构、材质和表面强化工艺。改进后抽油泵的防腐和耐磨能力明显优于常规抽油泵。针对试验中出现的新问题，又完成了二次改进。
In view of the outstanding problems of the pump inspection well pump in Shengtuo Oilfield, the cause of failure of the double rod pump well was investigated and analyzed. It is pointed out that the working condition of the pump is getting worse, the sands of the formation are becoming more and more serious, the corrosiveness of the production fluid is strong, the lubrication medium is changed, the material and treatment of the pump are not suitable for the working medium, and the structural design of the pump is irrational. The main failure factors. On this basis, the improvement of the conventional pump part of the structure, material and surface strengthening process. Improved pump anti-corrosion and wear resistance was significantly better than the conventional pump. In view of the new problems that appeared in the experiment, completed the second improvement again.