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U.S. Department of Energy
Office of Scientific and Technical Information

Pipeline coatings - Evaluation, repair, and impact on corrosion protection design and cost

Conference ·
OSTI ID:7040847
Coating systems provide the primary corrosion protection for buried pipelines. Failure of a pipeline coating system impacts dramatically on the design and cost of additional corrosion protection i.e. cathodic protection or recoating. This paper examines the performance of TCPL's major coating systems using data obtained from field measurements and bell-hole inspections. Difficulties with attempting to use cathodic protection as the primary protection system are shown using data from pipe-to-soil surveys and bell-hole inspections. A correlation between field performance and laboratory testing of the various coating systems used is given to provide a guideline in selecting an effective repair or recoating system as an alternative to additional cathodic protection. A brief description of recoating and repair of existing deteriorated coatings on TCPL's system is included.
OSTI ID:
7040847
Report Number(s):
CONF-870314-
Country of Publication:
United States
Language:
English