Allseas wins removal contract for multiple North Sea installations

Allseas has been awarded a contract by Aker BP for the removal and disposal of multiple topsides and jackets from the Valhall area in the Norwegian North Sea.

The contract is the latest award by Aker BP under the terms of the frame agreement signed with Allseas in 2017 to provide transport, installation, and removal services for the Valhall oil field.

Work comprises removal and disposal of the drilling platform (DP) 5,950-tonne topsides and 4,350-tonne jacket, and production and compression platform (PCP) 10,900-tonne topsides and 9,500-tonne jacket from the Valhall complex, plus the 1,100-tonne Hod topsides and 3,500-tonne jacket from the connected Hod field, 13 kilometres to the south.

Allseas’ heavy lift vessel Pioneering Spirit will execute the work between 2021 and 2026. Water depth at the field is approximately 70 metres.

Platform preparations are scheduled to commence later this year, continuing into the 2021 lift season.

In addition, Aker BP has invoked the option for the removal and disposal of the Valhall Quarters Platform (QP) jacket and the 2/4-G jacket on the Ekofisk field, 24 kilometres north of the Valhall complex. This option was associated with the 2017 award for the removal and disposal of the QP topsides, removed by Pioneering Spirit in June 2019.

The QP topsides was the first of the three original structures (QP, DP, PCP) at Valhall to be removed as part of the modernisation of the Valhall field centre by Aker BP.

Hod is remotely operated from Valhall and was the first unmanned platform in the Norwegian sector of the North Sea when production started in August 1990.

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