水井管道腐蚀因素分析及镍磷镀层防护性能评价  

Analysis of Corrosion Factors in Water Well Pipelines and Evaluation of Protective Performance of Nickel Phosphorus Coatings

作　　者：徐加军[1] XU Jiajun(Shengli Oil Extractor Plant of SINOPEC Shengli Oilfiled Branch,Dongying 257000,China)

机构地区：[1]中国石化胜利油田分公司胜利采油厂,山东东营257000

出　　处：《化工管理》2024年第15期133-139,共7页Chemical Engineering Management

摘　　要：胜利油田作业跟踪27口新管漏失井,均为单根外壁腐蚀,油管腐蚀问题给油田生产带来了极大的安全隐患。目前,油田注水管道系统采取的防腐措施主要有采用耐腐蚀管材、涂层防腐、镀层保护、氮化技术、化学防腐及阴极保护等几大类。文章研究了某井下采出液条件下水井管道在不同运行工况(不停井)中出现锈蚀现象的产生原因及机理,对该井漏失管开展了镍磷镀层防护实验并进行效果评价,确定该条件下管线发生锈蚀主要受井筒设计状况和套管内压力影响。根据实际情况开展镀层保护实验,并通过镀层保护方法提出后续防护措施。The operation of Shengli oilfield tracked 27 newly lost wells,all of which were caused by single outer wall corrosion.The corrosion problem of oil pipes has brought great safety hazards to oilfield production.At present,the anti-corrosion measures adopted for oilfield water injection pipeline systems mainly include the use of corrosion-resistant pipes,coating anti-corrosion,coating protection,nitriding technology,chemical anti-corrosion and cathodic protection.The article studied the causes and mechanisms of corrosion in water well pipelines under different operating conditions(without stopping the well)under the conditions of produced liquid in a certain underground well,and carried on nickel phosphorus coating protection experiments on leaking pipes in the well and evaluated their effectiveness.The corrosion of pipelines under this condition is mainly affected by the design condition of the wellbore and the pressure inside the casing.According to the actual situation,the coating protection experiment was carried out and the follow-up protection measures were put forward through the coating protection method.

关 键 词：套管 防蚀 镍磷镀层防护 

分 类 号：TE25[石油与天然气工程—油气井工程]