Sources said bids are due by 1 October for the 15,000-tonne platform, with contenders thought to include consortia headed by Daewoo Shipbuilding & Marine Engineering, Hyundai Heavy Industries and Technip, respectively.

Daewoo is believed to have Aker Solutions on board as a sub-contractor, while Hyundai has linked with Mustang Engineering and Technip with Samsung Heavy Industries, sources said.

One contractor called the Dagny steel jacket and topsides “a look­alike” of Statoil’s Valemon and Gudrun platforms, each due to come on stream in 2014.

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