Gas Technology Institute
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Field Applied Pipeline Coatings

SKU: GRI-05/0179
Field Applied Pipeline Coatings

The project objective is to test, in field and laboratory conditions, thirty field-applied pipeline coating systems (PCS’s) currently used on girth welds of pipes coated with a mainline coating of Polyethylene (PE). The systems in test include, FBE, heat-shrink sleeves, tapes, and liquid-applied coatings.
Document Type
Report
Report Type
Final Report
Report Period
08/02 - 03/05
Corporate Source
Gas Technology Institute, Des Plaines, IL
Sponsor
GRI, Des Plaines, IL
Pagination
47p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
The project objective is to test, in field and laboratory conditions, thirty field-applied pipeline coating systems (PCS’s) currently used on girth welds of pipes coated with a mainline coating of Polyethylene (PE). The systems in test include, FBE, heat-shrink sleeves, tapes, and liquid-applied coatings. The particular PE system installed as the mainline coating consisted of a three-layer system, commonly specified by several of the major oil companies. Typically PCS testing occurs in “controlled” environments which cannot replicate in-service conditions. Traditional testing cannot subject PCS’s to the forces causing premature coating failures, such as rock impingement, the mass and curvature of the pipe, shrink / swell soil conditions and the difficulty of coating system adhering to the PE surface. The GTI state-of-the-art field pipeline coating laboratory allows rigorous and realistic testing. Pipeline coatings are currently in test under different soil conditions (clay, sandy, and rocky), on 8" diameter pipe, at ambient temperatures, with controlled moisture and drainage and a fully functional cathodic protection system. Rigorous inspection protocols ensured during surface preparation, application, and inspection were performed properly, consistently, repeatable, and equally across all systems applied. Holding these variables constant will allow testing of the PCS material itself.
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