Power specialist Royston has accomplished work on the primary section of a brand new diesel engine upkeep and repair program for vessels owned by worldwide drilling contractors, Stena Drilling.

Work on the Wartsila 16v25 No.three generator on board the category three semi-submersible drilling platform Stena Don noticed cylinder heads, pistons and conrods overhauled, as a part of an in depth 20,000 working hour service.

This required a four-man engineering group working day and evening shifts on the vessel whereas it was positioned at Scapa Flow, Orkney.

The work displays continued success for Royston within the marine service offshore sector and will likely be adopted by additional work on different diesel energy items onboard the Stena Spey rig, and the 58,000 GWT Stena IceMAX and Stena Carron drill ships.

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The engine was dismantled to permit engineers to carry-out upkeep and restore work on the 16-cylinder heads. New rings, bearing shells and backside finish bolts had been additionally fitted to the pistons and conrods earlier than they had been recalibrated.

Other restore work concerned refitting predominant bearings and changing thrust bearings, whereas the air cooler, oil cooler and gas pumps and pipes had been both changed or refurbished with new elements.

Following the service, testing was undertaken which concerned incremental load will increase in-line with the engine producer’s specification.

The Stena Don work comes forward of a significant three month-long refit of the rig, which begins in October at Damen Shipyards Verolme yard in Rotterdam. It will then be deployed to hold out drilling actions for Total E&P UK on an exploration properly west of the Shetland Islands.

Alex Reilly, Royston’s marine service supervisor on the contract, mentioned, “Our expertise with the engine sort, coupled with our potential to work on location, ensured the work was accomplished successfully and in good time.

“Stena was extraordinarily proud of our engineers’ technical capabilities and professionalism. We sit up for strengthening our relationship with Stena within the coming months, as we full the opposite three tasks.”

The Stena Don is a dynamically positioned class three semi-submersible drilling, completion and workover vessel able to endeavor drilling operations to depths of greater than eight,000 m within the harshest environments. Its a part of a seven-strong Stena Drilling fleet, which consists of 4 deep-water drill ships and three semi-submersible rigs.

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Source: www.worldoil.com

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