包覆型防腐抽油杆原理与应用  

Principle and application of coated anti-corrosion sucker rod

作　　者：王海文[1] 张伟[1] 谢文献[2] 苏庆欣[2] 孙喆[2] 田秀丽 Wang Haiwen;Zhang Wei;Xie Wenxian;Su Qingxin;Sun Zhe;Tian Xiuli(School of Petroleum Engineering,China University of Petroleum（East China）,Qingdao,266580,China)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580 [2]中石化胜利油田分公司胜利采油厂,山东东营257051

出　　处：《石化技术》2018年第11期113-114,共2页Petrochemical Industry Technology

摘　　要：腐蚀疲劳破坏是腐蚀较严重井抽油杆主要损坏形式,造成抽油机井的检泵周期大大缩短。为了避免抽油杆腐蚀,研制出包覆型抽油杆。在抽油杆的杆体部位包覆超高分子量聚乙烯,在杆头部位采用热熔覆粉末喷涂工艺加工一层镍基合金,实现了耐腐蚀材料对抽油杆的全面包覆。经实际应用,验证了包覆型抽油杆抗腐蚀性能,成为解决抽油杆腐蚀问题的技术之一。Corrosion fatigue damage is the main damage form of sucker rod in severe corrosion wells, which shortens the pump cycle of pumping wells greatly. In order to avoid the corrosion of sucker rod, a cladding sucker rod is developed. Ultra-high molecular weight polyethylene is coated in the rod body of sucker rod, and a Ni-base alloy is processed by hot-melt powder spraying technology in the rod connection part. The corrosion-resistant material is comprehensively coated with the sucker rod metal. The corrosion resistance of the coated sucker rod has been proved to be one of the techniques to solve the corrosion problem of sucker rod.

关 键 词：抽油杆 腐蚀 聚乙烯 镍基合金 

分 类 号：TE983[石油与天然气工程—石油机械设备]