新型光杆密封盒及其使用

介绍了一种新型结构的光杆密封盒。这种密封盒可以使比光杆杆体直径大得多的光杆接头通过，能满足新的采油工艺需要。密封盒内部组件结构独特，抽油机作业过程中可灵活更换和调整。密封盒的调偏性能可以使光杆偏磨减小到最低程度。此外，还阐述了使用中应注意的若干问题。

New polished rod seal assembly and its application

A polished rod seal assembly with new structure is introduced. The new assembly can make the joint of the polished rod pass through, therefore can meet the need of new oil production technology. The component parts of the assembly with unique structures can be replaced and adjusted. The wear of the polished rod can he minimized by means of the offset regulating function of the assembly. In addition, items that should be paid attention to in operaion are expounded.