Improved corrosion control by coating in the splash zone and subsea
Journal Article
·
· Mater. Performance; (United States)
OSTI ID:6257714
The splash zone around offshore structures is without doubt one of nature's most hostile and corrosive environments. Apart from the wave impacts, plentiful supplies of oxygen, lack of cathodic protection, and the salt spray that continually wets and then dries upon objects, the region is difficult and sometimes dangerous to access. This article reviews the performance of two new offshore repair coatings recently installed on North Sea and Gulf of Mexico installations. The first coating, a reinforced heat-shrinkable sleeve, is designed to be installed over properly cleaned and dried steel surfaces. Suitable conditions for the application of this coating exist during low tide and calm weather when certain exposed sections of the splash zone are accessible. Alternatively, by using a special remote-controlled cofferdam chamber to create an artificial local environment, subsea coating application can proceed under ideal conditions. Cofferdam chamber installations are diver-free and can be made throughout the entire splash zone, even during rough weather. When a remote-controlled cofferdam is not available and repairs are needed in subsea or wet areas, diver assistance is usually required. The second coating system, a gel-based, diver-applied tape, has been developed specifically for such applications.
- Research Organization:
- Raychem Corp., Menlo Park, CA (US)
- OSTI ID:
- 6257714
- Journal Information:
- Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 28:1; ISSN MTPFB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
423000* -- Engineering-- Marine Engineering-- (1980-)
ATLANTIC OCEAN
CARIBBEAN SEA
CATHODIC PROTECTION
COATINGS
CORROSION PROTECTION
CORROSIVE EFFECTS
DESIGN
ELEMENTS
GULF OF MEXICO
HYDROGEN COMPOUNDS
MATERIALS
NONMETALS
NORTH SEA
OFFSHORE SITES
OXYGEN
OXYGEN COMPOUNDS
PERFORMANCE
PROTECTIVE COATINGS
REINFORCED MATERIALS
SEAS
SEAWATER
SURFACE WATERS
UNDERWATER OPERATIONS
WATER
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
423000* -- Engineering-- Marine Engineering-- (1980-)
ATLANTIC OCEAN
CARIBBEAN SEA
CATHODIC PROTECTION
COATINGS
CORROSION PROTECTION
CORROSIVE EFFECTS
DESIGN
ELEMENTS
GULF OF MEXICO
HYDROGEN COMPOUNDS
MATERIALS
NONMETALS
NORTH SEA
OFFSHORE SITES
OXYGEN
OXYGEN COMPOUNDS
PERFORMANCE
PROTECTIVE COATINGS
REINFORCED MATERIALS
SEAS
SEAWATER
SURFACE WATERS
UNDERWATER OPERATIONS
WATER