Corrosion prevention for offshore platforms
Offshore oil and gas platforms are subjected to hostile, corrosive, marine environments and require continuous preventive maintenance to ensure prolonged and safe operation. Corrosion is identified as it occurs: above water, in the splash zone, and subsea. Coating systems, surface preparation, application, and maintenance are discussed for abovewater corrosion prevention. The advantages and limitations of added metal for corrosion allowance, corrosion-resistant cladding, and coatings are discussed for splash-zone corrosion prevention. Major emphasis is on the use of cathodic protection (CP) to prevent subsea corrosion. Included in the discussion are the advantages and limitations of sacrificial-anode and impressed-current CP systems for use with steel and reinforced concrete structures. Subsea monitoring and the effects of platform CP on well casings are also discussed.
- Research Organization:
- Chevron Oil Field Research
- OSTI ID:
- 6869041
- Journal Information:
- J. Pet. Technol.; (United States), Vol. 36:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
42 ENGINEERING
NATURAL GAS WELLS
CATHODIC PROTECTION
OFFSHORE PLATFORMS
OIL WELLS
ANODES
CORROSION
MAINTENANCE
MONITORING
PROTECTIVE COATINGS
REINFORCED CONCRETE
SAFETY
STEELS
SURFACE TREATMENTS
UNDERWATER
WELL CASINGS
ALLOYS
BUILDING MATERIALS
CHEMICAL REACTIONS
COATINGS
CONCRETES
CORROSION PROTECTION
ELECTRODES
IRON ALLOYS
IRON BASE ALLOYS
LEVELS
MATERIALS
REINFORCED MATERIALS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
423000 - Engineering- Marine Engineering- (1980-)