在内部腐蚀引起的管线破损事例中 ,局部腐蚀 (LC)是主要原因。添加腐蚀抑制剂是控制潮湿气体和油品输送管线腐蚀的最常用方法。因此 ,抑制剂的选择应以其能控制各种潜在的局部腐蚀为原则。腐蚀抑制剂的试验室和现场评估结果显示 ,当某些抑制剂产品在水相中的浓度超过一临界值时 ,其控制局部腐蚀效果可达 10 0 %。主要不确定因素是抑制剂在管表面的利用率。 In the case of pipeline damage caused by internal corrosion, local corrosion (LC) is the main cause. Adding corrosion inhibitors is the most common method of controlling corrosion of damp gas and oil transfer lines. Therefore, the choice of inhibitor should be based on its principle to control various potential localized corrosion. Laboratory and field assessments of corrosion inhibitors show that when certain inhibitor products exceed a critical concentration in the aqueous phase, they control localized corrosion up to 10%. The main uncertainty is the inhibitor’s utilization on the tube surface.