Cladding contracts

Arc Energy Resources (UK) recently completed two fast-track weld overlay cladding projects for the Pembroke refinery of Chevron Texaco, each completed and delivered in under two weeks. Foster Wheeler Energy, which operates a term services contract at Chevron Texaco’s Pembroke refinery, turned to Arc Energy Resources for specialised weld overlay cladding on two urgent projects involving exotic alloys. Both contracts were for projects that had to be completed before a major shutdown, which is why the timescales were so critical. The first required the refurbishment and modification of a 16 to 12in carbon steel pipeline reducing cone. Explains Arc Energy sales manager Alan Brown: “The component needed to be refurbished and at the same time we applied a 3mm weld overlay coating of Monel 400 through the reducer and sealing base to ensure durability. We were also asked to fit a new Monel wedolet to replace an existing carbon steel outlet, which involved qualifying a new welding procedure witnessed by an independent surveyor”. The second contract, a replacement 2in Scorpion injection nozzle from a crude oil column, was even more time critical, Mr Brown added. “An existing component had been repaired on site to maintain production and we had scheduled the shut down to install the new nozzle.” Arc Energy sourced a new component, applied a stainless steel 316 L weld overlay and machined it to Foster Wheeler’s specification.




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