Cathodic protection of offshore pipeline
File : presentation, 23 pages
OUTLINE
Why start the development?
Failure on existing 13CR pipelines (hydrogen induced stress cracking)
Testing and verification of materials properties
Decision time! – Level of cathodic polarization
Traditional CP design
Restricted by Norsok M-503 and DnV RPB 401
New CP design – opportunity, challenge and result
Opportunity – The new ISO standard for submarine pipelines
Challenge – adapting the most radical parameters
Result – Description of the new concept
Special features connected to the CP design
Download : pdf
