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Offshore CompoSol Pipework

North Sea Platform Process Gas Line

procgasFulbef03An offshore platform operator in the North Sea had an issue with a 4” Process Gas Line that had suffered 75% wall loss due to external corrosion. The operator was planning a shut down in 9 months and needed to keep the line operating till this time. IMG Composites were contacted and asked to provide the solution, CompoSol Pipework.

procgasFulrep03At 153bar this was possibly the highest pressure composite repair in the North Sea. An engineered design was generated by the technical team, in line with the guidelines set out in ISO 24817. Due to the substrate weakness, surface preparation was carried out to St. 2 standard. CompoSol Reinforced Epoxy Paste was used to reinstate the pitting corrosion back up to the surface. 21 layers of CompoSol Pipework repair material was applied along 3 feet of the axial extent of the pipe. The repair was applied live and on line with no reduction in the operating pressure. The pipe remained in service for the required 9 months till the next shut down.

 

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