Domestic Manufacture and Application of Hollow Sucker Rod

Described in the article are the main structure of and the manufacturing process for the home-made hollow sucker rod.And analyzed are the five major applied processes of the said rod，i.e.，hot-washing of paraffin，dilute oil production，electric heating oil production，separate layer injection，and drainage gas recovery.The analysis result leads to such a conclusion that the direct connection type will become the development trend of the hollow sucker rod structure type；and for domestically manufacturing the sucker rod，the forge-formation process and the friction welding+thermomechanical treatment will be employed as themain method，and that the serial applied processes of the hollow sucker rod will be the effective selection by domestic exploitation of heavy oil field，high wax oil field and gas field.