Evaluation of Regional Cathodic Protection Effect of In-service Oil Transmission Station
In order to upgrade the implementation of a regional cathodic protection system for buried pipelines in an in-service oil transmission station site,tests were carried out after the commissioning and operation of such items as deep-well anode ground beds,pipe ground potentials,corrosion rates,interference of cathodic protection systems inside and outside the station,and the influence of the two sets of cathodic protection systems in the station.Field tests conducted after the commissioning of the intelligent localized cathodic protection system show that the new system has not adversely affected the other two systems,and interference is within acceptable limits.The pipe-to-soil potential IR drop is relatively high,indicating suboptimal quality of the corrosion protection layer on the station's pipelines.It is recommended to promptly conduct inspections and repairs of the corrosion protection layer on buried pipelines within the station.The localized cathodic protection for each buried pipeline meets the criteria requirements specified by domestic standards.
regional cathodic protectiontestevaluateoil transportation station
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