As the demand for oil and gas becomes greater and energy prices increase, the development of gas and oilfields in remote locations becomes more attractive and needed. In North America, pipeline activity is becoming more focused in the Arctic regions. As a result, TransCanada PipeLines Limited and its partners have been involved in demonstration projects to evaluate new technologies in these remote and challenging environments. The Godin Lake Loop project consisted of 2.0 kilometers of NPS 36 X100 grade pipe and 1.6 kilometers of NPS 36 X120 grade pipe. Bredero Shaw's High Performance Composite Coating (HPCC) was selected for the mainline coating of the construction project to test out proposed Arctic construction materials and practices. HPCC is a homogenous, multicomponent coating designed to protect buried oil & gas pipelines in environments where superior corrosion performance and mechanical protection properties are required. It is produced by melt fusing all components in powder form. The pipe was coated with the Composite Coating at Bredero Shaw's Camrose, Alberta plant. The process worked smoothly and the plant quality tests gave excellent results. The experience during construction was also very favourable. The superior mechanical and corrosion resistance properties can result in many cost savings during construction making it a cost-effective coating solution for pipeline operators. The use of a totally powder application process provides a unique structure and makes it very versatile where thickness of the components can be adjusted for any special requirements, and raised welds can be coated very efficiently. The coating has undergone considerable testing, meeting all the requirements of CSA Z245.21 and exceeding many of the test results for conventional coating systems. Very little damage was observed during unloading, stringing and bending even at construction temperatures as low as -45 deg. C. Field joint systems and repair materials were also applied with favourable results. Canusa's three layer heat shrink sleeve, GTS-65, was applied successfully at very low construction temperatures, with adequate productivity and good adhesion properties.


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    Title :

    New developments in high performance coatings


    Contributors:
    Singh, P. (author) / Haberer, S. (author) / Gritis, N. (author) / Worthingham, R. (author) / Cetiner, M. (author)


    Publication date :

    2005


    Size :

    12 Seiten, 5 Bilder, 2 Tabellen, 11 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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