A corrosion protection system for a North Sea jacket; Cathodic protection coating design and performance
Journal Article
·
· Materials Performance; (USA)
OSTI ID:7052554
- Norsk Hydro Research Centre, N-3900 Porsgrunn (NO)
The Oseberg B steel jacket is an eight-legged jacket with a design life of 40 years. To reduce weight, a corrosion protection system combining aluminum anodes and coal-tar epoxy coating was chosen. Anode selection was based on experiments designed to detect possible tendencies to passivation during the period of low current consumption. Cylindrically shaped anodes of the Al-Zn-In type were chosen since they would give the lowest possible weight, reduce the drag forces on the jacket, and have the lowest probability of passivating. A permanent monitoring system was installed consisting of 20 pairs of reference electrodes and shunted anodes. Such a system simplifies offshore surveillance of the cathodic protection system, and also gives early warnings in case of anode passivation. Results of monitoring the potential from the day of launch are presented.
- OSTI ID:
- 7052554
- Journal Information:
- Materials Performance; (USA), Journal Name: Materials Performance; (USA) Vol. 29:5; ISSN MTPFB; ISSN 0094-1492
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
423000* -- Engineering-- Marine Engineering-- (1980-)
ALLOYS
ALUMINIUM ALLOYS
ANODES
ATLANTIC OCEAN
CATHODIC PROTECTION
COAL TAR
COATINGS
CORROSION PROTECTION
DATA
DESIGN
ELECTRODES
EPOXIDES
EXPERIMENTAL DATA
INDIUM ALLOYS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
NORTH SEA
NUMERICAL DATA
OFFSHORE PLATFORMS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PASSIVATION
PERFORMANCE
PROTECTIVE COATINGS
SEAS
STEELS
SURFACE WATERS
SURVEILLANCE
TAR
ZINC ALLOYS
020300 -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
423000* -- Engineering-- Marine Engineering-- (1980-)
ALLOYS
ALUMINIUM ALLOYS
ANODES
ATLANTIC OCEAN
CATHODIC PROTECTION
COAL TAR
COATINGS
CORROSION PROTECTION
DATA
DESIGN
ELECTRODES
EPOXIDES
EXPERIMENTAL DATA
INDIUM ALLOYS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
NORTH SEA
NUMERICAL DATA
OFFSHORE PLATFORMS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PASSIVATION
PERFORMANCE
PROTECTIVE COATINGS
SEAS
STEELS
SURFACE WATERS
SURVEILLANCE
TAR
ZINC ALLOYS