This paper presents a case study of a pipeline release attributed to AC induced corrosion. Shortcomings were identified in the operator’s integrity and corrosion programs which would normally prevent such a release. Based on the findings, the operator completed additional excavations, conducted an AC interference study, and developed an enterprise wide program focused on identifying, monitoring, and mitigating AC interference. The paper examines the results of each mitigative action and process adjustment taken by the operator.

Subject
Pipe surfaces, Piping, Voltage, Corrosion rate, Walls, Leaks, Pipelines, Soil resistivity, Inspection, Current densities, Anomalies, AC interference, Soil
Keywords:
AC Corrosion, ILI, AC Interference, Interference, AC Mitigation
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2021
Association for Materials Protection and Performance (AMPP)
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