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March 29, 2015

Statoil starts work on Polarled pipeline installation

Statoil has started laying a 482km pipeline that will transport gas from the Aasta Hansteen field in the Norwegian Sea to Nyhamna in western Norway.

Vessel

Statoil has started laying a 482km pipeline that will transport gas from the Aasta Hansteen field in the Norwegian Sea, to Nyhamna in western Norway.

The Solitaire pipe-laying vessel is being used to lay pipelines in water depths of 1265m. It is the first stage of the Polarled installation project.

The project includes expansion of the Shell-operated gas plant at Nyhamna.

The pipeline, which is expected to be laid by the end of August, will take gas from Aasta Hansteen to Nyhamna in 2017.

Polarled PRO project manager Alfred Øijord said: "When the pipeline is laid, we will install an end manifold with connection points for Aasta Hansteen and any future fields. Six T-joints on the pipeline for any further connections are also a unique feature of Polarled."

Gassco will operate the pipeline and the Nyhamna gas processing plant when they come onstream.

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A separate pipeline between Polarled and the Kristin platform will connect new and existing infrastructure on Haltenbanke.

"When the pipeline is laid, we will install an end manifold with connection points for Aasta Hansteen and any future fields."

Preparations will also be made for the tie-in of existing and future discoveries in the area.  

The Aasta Hansteen field development includes a SPAR platform, which Statoil claims to be the first such installation on the Norwegian continental shelf.

SPAR is a floating installation that features a vertical column moored to the seabed. The installation has conventional topsides with processing facilities.


Image: Solitaire pipe-laying vessel has started laying the Polarled gas pipeline. Photo: Courtesy of Svein Roger Ivarsen/Shell.

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