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1. (WO2013154432) METHOD OF MANUFACTURING A FIELD JOINT COATING

Pub. No.:    WO/2013/154432    International Application No.:    PCT/NL2013/050267
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Sat Apr 13 01:59:59 CEST 2013
IPC: F16L 58/18
F16L 59/20
Applicants: HEEREMA MARINE CONTRACTORS NEDERLAND SE
Inventors: BOYD, Helen Rose
WILLS, Lara Elizabeth
Title: METHOD OF MANUFACTURING A FIELD JOINT COATING
Abstract:
The invention relates to a method of manufacturing a Field Joint Coating (FJC) for a pipeline, the method comprising: • - providing a pipe section to be joined to a similar pipe section or free end (28) of a pipeline, wherein each pipe section is provided with a coating comprising of at least a thermal insulation layer (34) over a substantial portion of the length of the pipe section having a protruding section (33), wherein the end zones (38) of each pipe section are free of thermal insulation, thereby allowing access to the ends (26, 28) of the pipe section and the pipeline from the outside in order to connect the pipe section with the free end (28) of the pipeline, • - after the connecting of the pipe section to the free end of the pipeline, applying an anti-corrosion coating layer (60) on a connection region of the joined ends (26, 28) of the pipe section and the pipeline, • - heating the protruding section (33) and applying an intermediate coating layer (62) of a thermoplastic material on the anti-corrosion coating layer and the protruding section, • - applying a thermal insulation layer on the intermediate coating layer.