Pipeline Failure: The Roles Played by Corrosion, Flow and Metallurgy

摘要: Carbon dioxide corrosion has been widely studied in the field and laboratory. It is recognized that flow regime metallurgy are important factors influence in-situ rates but there relatively few documented case studies able to separate individual contributions of corrosion, on observed damage. This paper deals with failure a pipeline where high quality inspection data together comprehensive as-built records stable production conditions allowed influences be studied. The regimes ranged from low velocity, stratified slug flow. showed affect turbulent was increase frequency pits and, weld mean rate. constructed two grades steel welded using types welding consumable. One grade corroded at significantly higher rate than another, apparently similar steel. However, no significant relationship found between or frequency.