有杆抽油泵是应用最早也是应用最广泛的抽油设备,它具有结构简单、制造容易、维护方便、使用可靠等优点,在油田采油工程中一直占着主导地位。在我厂、整个大庆油田乃至全国各油田的生产井中80%的井使用的都是有杆抽油泵。但是,近几年,随着油田进入高含水开发的后期,一些为了提高采收率的工艺也相继投入到油田的开发生产中来,这使得有杆抽油泵的寿命也相对有所下降,特别是由于抽油泵柱塞上凡尔罩断裂失效而造成有杆抽油泵失效的现象变得越来越普遍了。 Sucker rod pump is the earliest and most widely used oil pumping equipment. It has the advantages of simple structure, easy manufacture, convenient maintenance, reliable operation and so on. It has always been the dominant oil recovery project. In our plant, 80% of the wells in Daqing Oilfield and even the oilfields in the country use sucker rod pumps. However, in recent years, as oilfields enter the later stage of high-water-cut development, some processes for enhancing oil recovery have also been put into development and production of oilfields in succession, which has led to a relatively lower lifespan of sucker-rod pumps. In particular, It is becoming more and more common that the sucker-rod pump fails due to the failure of the Pu’er hood on the plunger of the sucker rod pump.