管杆偏磨机理研究及防治措施

Study on Mechanism of Eccentric Wear of Pipe Bar and Preventive Measures

中原油田已进入开发后期,综合含水不断上升,抽油杆与油管之间因偏磨加剧、管杆问题造成躺井作业所占比例逐年上升。中原油田1982年全面投入开发,1984年进入注水开发阶段,2016年底综合含水已高达90%以上,偏磨加剧,管杆失效逐年增加,给油田生产管理以及成本控制都带来了很大困难。

The Zhongyuan Oilfield has been in the late stage of development,and the comprehensive water content has been rising.The sucker rod and the oil pipe are intensified by partial grinding.The proportion of the laying operation is increasing year by year due to the problem of pipe rod.Zhongyuan Oilfield was fully put into development in 1982,and entered the stage of water injection in 1984.At the end of 2016,the comprehensive water content was over 90%,and the partial wear was increased,and the failure of pipe rods increased year by year.It brought great difficulties to oilfield production management and cost control.