A 4-circuit impressed current cathodic protection system with flexible and high silicon cast-iron shallow buried auxiliary anode bed is applied in Jinghe compressor station. In order to obtain the protective effect of the regional cathodic protection system, detailed field tests have been carried out. Based on the results of field tests, assessment of regional cathodic protection is conducted, then reform programs for inadequate protective effect and interferences between pipelines outside and inside the station is determined using numerical simulated computation and field experiments.

Subject
Circuits, Anode potential, Modeling, Cathodic protection, Cathodic potential, Valves, Reference electrodes, Pipelines, Grounding, Electrical interference, Step potential, Electrode potential, Anodes
Keywords:
regional cathodic protection, numerical simulation computation, effect assessment, reform program
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2015
Association for Materials Protection and Performance (AMPP)
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