在许多老油田,开采原油的老式抽油机仍占多数。如江汉油田,虽然每年都要更新一批抽油机,但老式抽油机仍占在用抽油机的60％以上,因此研究对老式抽油机的使用、管理、保养、修复具有十分广泛的意义。当油田处于中后期开发时,措施井多,特别是江汉油田井下腐蚀严重,极易造成油管、抽油杆和深井泵各部分接头等的断脱与泵效低的故障,这些因素势必增加油井的作业次数,而驴头的转动次数也随之增多。江汉地区多雨潮湿,抽油机驴头锈蚀十分严重,作业队在施工时,常采用 In many old oil fields, the old-style pumping unit that exploits crude oil still accounts for the majority. For example, Jianghan Oilfield, although a batch of pumping units are to be updated every year, the old pumping units still account for more than 60% of pumping units. Therefore, research on the use, management, maintenance and repair of the old pumping units is very extensive Meaning. When the oilfield is in the middle and late development, many well measures, especially Jianghan oilfield underground corrosion, can easily lead to tubing, sucker rod and deep well pump joints and other parts of the disconnect and low pump efficiency failure, these factors will increase the well The number of operations, while the donkey head rotation frequency also increased. Jianghan area wet and humid, pumping head donkey rust is very serious, the operation team in the construction, often used