Noway-based Aibel reports that the Troll A platform project received three new modules. The Troll field lies in the northern part of the North Sea, around 65 km west of Kollsnes, near Bergen. The field is comprised of the main Troll East and Troll West structures in blocks 31/2, 31/3, 31/5 and 31/6. Statoil operates the Troll A, B and C platforms.
Production was shut down for 18 days due to the hook-up of the final two modules – a compressor module and a utility module. There were 33 tie-in points between the module and the platform, which required a considerable amount of welding and pressure tests, reports Aibel.
“Being a well-integrated part of the client’s shutdown team, we had a good understanding of their desires. We reached all milestones in the planning phase, and thereby gained an excellent basis prior to the shutdown,” says Aibel’s shutdown coordinator, Jarle Søvik.
“By going through the various tasks step by step, we reveal possible showstoppers before the shutdown. We also discuss the interfaces between various disciplines and common challenges such as safety,” says construction manager, Harald Revheim.
About 180 offshore employees were engaged in the shutdown. A total of 28,600 work hours were carried out throughout the shutdown, which was the largest shutdown ever at Troll A. Aibel’s scope of work amounted to 23,400 work hours. The project has now entered its final stage and will be completed during summer. The final tasks primarily consist of insulation and structural work.
Photo courtesy of Aibel
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