TransCanada Pipelines has been using fusion bond epoxy (FBE) external coatings for large diameter line pipe since the early 1980's. Overall, this coating type, when applied in accordance to the CSA Z245.20 standard provides excellent protection and long term service life. However, some reports from the field described the periodic occurrence of blistering and disbondment of the coating. In order to understand the magnitude and causes of these phenomena, an investigative program was initiated. Laboratory tests and a program of field examinations were carried out. Some of the variables considered were: age of the coating; service temperature; cathodic protection (CP) levels; and soil type. No evidence of a pipeline integrity threat associated with fusion bond epoxy deterioration was found at any of the locations examined. Observations and correlations of coating damage to exposure conditions will be presented.
Long term performance of fusion bond epoxy coated pipelines
2004
8 Seiten, 4 Quellen
Aufsatz (Konferenz)
Englisch
Algorithm for long-term scheduling of multiproduct pipelines
Tema Archiv | 2011
|Factors affecting long-term integrity of transmission pipelines
Tema Archiv | 2000
|Designing for internally coated pipelines
Tema Archiv | 2005
|Reliability analysis of long term pitting corrosion of welded marine steel pipelines
Tema Archiv | 2012
|