Cathodic protection uses the impressed current method (or sacrificial anode method) to make pipelines the cathode, thereby inhibiting electrochemical corrosion.
Corrosion of oil and gas pipelines and storage tanks can lead to perforation and leakage, causing the release of flammable and explosive media, which may result in serious consequences such as fire, explosion, and environmental pollution. Cathodic protection uses the impressed current method (or sacrificial anode method) to make pipelines the cathode, thereby inhibiting electrochemical corrosion, extending service life, and preventing leakage.

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