鄚任输油管线内腐蚀原因与治理技术研究

Internal Corrosion and Prevention of Maozhou- Renqiu Oil Transmission Pipeline

通过对鄚任输油管线采出液水质特性分析及影响腐蚀的因素试验，找出了引起该管线腐蚀穿孔的主要原因是细菌腐蚀，并研制出了复合型缓蚀剂。采取加药治理措施后，在投药量为50mg／L的条件下，管线内腐蚀速度〈0．076mm／a，杀菌率达到100％，使鄚任管线腐蚀得到了有效控制。

The water analysis and corrosion element test is made on the oil well fluid in the Maozhou - Renqiu oil transmission pipeline. It finds microbiological corrosion is the major cause of corrosion perforation of the pipeline and a compound corrosion inhibitor is developed accordingly. With the chemical dosage of 50 mg/L, the internal corrosion rate of the pipeline is less than 0. 076 mm/a and 100% bacterial destruction is obtained. Therefore, the corrosion of the pipeline is controlled effectively.