WuQi-yanlian Crude Oil Pipeline Cathodic Protection Engineering Operation And Maintenance

Based on the investigation of Shaanxi Yanchang Petroleum(Group)oil pipelinecompany IV, wuQi-Yanlian crude oil pipeline cathodic protection system along the site visits,this essay systematically analyzes and introduces wuQi-Yanlian crude oil pipeline cathodicprotection engineering operation and maintenance conditions.The cathodic protection system collecting along each CP station’s potentiostat and variousequipment specifications, through the impressed current cathodic protection,and sacrificial anodecathodic protection auxiliary.through the sorting and analysis of the potentiostat current potential data and current recordsof test piles along the cathodic protection, as well as the auxiliary anode operation, we can get acomprehensive contral over cathodic protection system.We also summarize the measurement method of cathodic protection potential, current,grounding resistance, soil corrosion rate of the parameters, and evaluation method of finishingprotective effect of cathodic protection;combined with the actual situation of oil depot, we summarize the Wuqi-Yanlian crude oilpipeline cathodic protection operating procedures, analyze and solve the common fault and issues.Finally, combining Wuqi-yanlian crude oil pipeline cathodic protection system’s operationand maintenance in some specific cases in recent years, this essay in-depth analyses someproblems in cathodic protection, and also gives a reasonable solution.