【摘要】 综述陇东油田防腐技术的发展现状 ,在对两口小套管修复失效井的分析基础上 ,施工前将地层处理通 ,并改进缓蚀剂加注工艺。加入缓蚀剂之前 ,先加入成膜液进行预膜 ,让成膜液停留 6～ 8h ,在套管表面形成一层保护膜 ,然后注入缓蚀剂将腐蚀介质与保护膜隔离 ,以达到长期保护套管的目的。更多还原

【Abstract】 This paper introduces the development status quo of corrosion control technology in Longdong oilfield.And the corrosion control technology of macaroni tubing used in casing repair is also presented.i.e. in casing failure well,befor corrosion inhibitor is added into macaroni casing,a fluid that can form protector in casing is firstly put in casing and stay 6～8 hours,then inject corrosion inhibitor to isolate the corrosive medium and protector.Thus,the aim of long-term casing protection is attained.更多还原