![]() Finally, the spar was laid down in the dock for further dismantling. After completion of the down ending into the horizontal floating position, the spar was transported to the Kvaerner dry-dock, suspended in the Rambiz cranes. Subsequently, the Rambiz lifted the bottom end, while a tug controlled the heading of the top of the spar coming down. A subsea lifting frame was installed at the bottom end of the spar. First the Rambiz lifted the helideck and topside from the spar. ![]() Eager.one positively assessed Scaldis’ plan which included our previous recommendations. Decommissioning of the Draugen FLPĪfter a contractor switch, Scaldis got the job with its HLV Rambiz. One of the ideas was a lifting frame, like a bucket, at the bottom end of the spar. We produced a full report with notes, comments and possible solutions to Shell. The contractor’s plan did not take into account the structural integrity, how the spar was installed originally and the damage in the spar-middle. After this research we concluded that reverse installation wasn’t possible as the plan suggested.”Įager.one handed over a comprehensive report advising against the proposed plan. By climbing the spar I noticed damage, which we certainly had to include in our calculations. ABB and platform operator OKEA are collaborating on the worlds first streaming of high-quality real-time data from such a facility, which is an important contribution for optimization. We have extensively studied the Draugen FLPs’ history: how the FLP was filled with ballast water and iron ore and how the FLP was constructed. The fjords are incredibly deep and the spar looked like a little bobber in the big fjord. Hubert: “It was a great decommissioning project to support. The feedback from Aibel and Shell has been positive, especially highlighting the quality and flexibility of the technical solutions, the planning of the jobs conducted by our project managers and finally the technical competence and proactive mindset of our field technicians.Īll these factors have resulted in all the hot work being performed on time and without interruptions or incidents, which without our planning, equipment and execution, would not have been possible.For a total insight our senior project engineer Hubert Boter visited the FLP. Hot work has been performed on Draugen continuously during the length of the contract, and still is being performed. This habitat was in continuous operation for more than three weeks, with all welds conducted ahead of schedule and with no delay between welding points, due to eliminating the need for several smaller habitats being constructed. Draugen and the larger regional 3D GeoStreamer survey over the Trøndelag Platform were mapped with a triple source to maximize data density. To ensure that the habitat remained pressurised during operations we connected three of our market leading, high-capacity fans in series against one habitat system. We solved this by constructing a 600 m3 habitat, covering the length of the new living quarters. Our focus during the planning and execution of these habitats has been to have little or no delay between the different welds and welding points.įor the structural work and installation of the new living quarters we were challenged by the contractor, Aibel, and the operator, Shell: Can StS somehow include all the welding points for the tie-in for the new living quarters in one habitat, ensuring maximum efficiency for the hot work and minimal or no delay. FEED is under way and FID should follow before mid-year, followed by first gas in 2023. ![]() Currently the company is working on plans for a tieback to the Draugen platform of the Hasselmus gas field, 7.5 km (4.6 mi) to the northwest. For the pipeline phase, one our field engineers and project managers has planned and built 49 habitats, facilitating 172 welds, while phase two has seen more than 35 habitats, with 73 welds performed. The new plans also encompass the 30-50 MMboe Vette oil discovery in PL972. The Draugen field is an oil field located in blocks 6407//12, and the platform is located at 64.35 degrees North and 7.77 degrees East in the Norwegian Sea, as shown in Fig. More than 84 habitats of numerous sizes and shapes have been constructed on Draugen, facilitating 245 welds. Due to the amount of work being done simultaneously, the need for thorough planning and flawless execution has been, and remains, crucial. Shell has stressed the importance of production being uninterrupted during the modifications, which has led to more than 245 welds being performed while in full production. A new pipeline has been installed, structural changes have been made and an entirely new living quarters installed. Draugen is undergoing major modifications while still being in production.
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