Deep water platform protection using costings combined with cathodic protection

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Materials Performance; (United States)

OSTI ID:7117811

Evans, S ^[1]

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1. Conoco Inc., Houston, TX (US)

In 1989, Conoco installed two fixed platforms, the central production platform (CPP) and the 52A drilling platform, in 620 ft (189 m) of water in the Gulf of Mexico at Green Canyon Block 52. The CPP processes oil and gas from the Marquette and Jolliet fields. Production from the Marquette field flows to the CPP via flowlines on a bridge that connects the A drilling platform to the CPP. Production from the Jolliet tension leg well platform (TLWP) will be transported to the CPP via subsea pipelines. The subsea corrosion protection system for these two deep water fixed platforms combined coatings and cathodic protection (CP). In this paper the subsea protection design, comprising a combination of cathodic protection and coatings, for two platforms installed in the Gulf of Mexico at a water depth of 620 ft (189 m), is described. The results of surveys undertaken after installation reveal potentials considerably more protective than the minimum protective potential. In addition to eliminating the retrofit risk, significant cost and weight savings were achieved.

• OSTI ID: 7117811
• Journal Information: Materials Performance; (United States), Journal Name: Materials Performance; (United States) Vol. 31:4; ISSN MTPFB; ISSN 0094-1492
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000* -- Petroleum-- Transport
Handling
& Storage
03 NATURAL GAS
032000 -- Natural Gas-- Transport
Handling
& Storage
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
423000 -- Engineering-- Marine Engineering-- (1980-)
ATLANTIC OCEAN
CARIBBEAN SEA
CATHODIC PROTECTION
COATINGS
CORROSION INHIBITORS
CORROSION PROTECTION
CORROSIVE EFFECTS
DESIGN
EVALUATION
GULF OF MEXICO
HYDROGEN COMPOUNDS
MATERIALS TESTING
NATURAL GAS WELLS
OFFSHORE OPERATIONS
OFFSHORE PLATFORMS
OIL WELLS
OXYGEN COMPOUNDS
PIPELINES
PROTECTIVE COATINGS
SEAS
SEAWATER
SURFACE WATERS
TESTING
WATER
WELLS