摘要
海拉尔油田埋地注水管道材质为20#碳钢,该管道在运行过程中内壁腐蚀问题比较突出。为了查清腐蚀原因,对管道输送介质进行分析,对腐蚀产物进行扫描电镜和能谱分析。结果显示,注水管道内腐蚀的主要原因是注入水中氧含量高,引起管道内壁发生氧腐蚀,同时存在大量的氯离子,加剧了管道的点腐蚀。针对注水管道的腐蚀原因,提出应采取纳米内防腐蚀漆和投加缓蚀剂的防腐蚀措施,或采用玻璃钢材质的注水管线的建议。
The underground water injection pipeline malerial in Hailar oil field is 20# carbon sleel. The pipeline in the operation process suffered irmer wall corrosion problem. In order to find out the reasons of corrosion, the conveying media were tested and the corrosion products were andyzed By SF.M and EDS, It is found thai. the internal corrosion of the water injection pipeline was mainly due to file high oxygen eontent in water injeclion resuhing ira oxygen corrosion, and ＊.he presence of a large number of chloride ions accelerated pipeline corrosion. Some corrosion prevention measures were put forward, including adopting nanonaeter inner anticorrosion paint and adding corrosion inhibitor, or using FRP （fibre reinforced plastic） pipeline.
出处
《腐蚀与防护》
CAS
北大核心
2013年第2期180-182,共3页
Corrosion & Protection
关键词
海拉尔
注水管道
内腐蚀
Hailaer
waler injection pipeline
inner corrosion
