WATCH: Statoil Installs Its First Unmanned Wellhead Platform


Statoil has completed installation of an unmanned wellhead platform (UWP) for its Oseberg Vestflanken 2 field project in the North Sea.

In February 2016, Statoil awarded Heerema the contract for the engineering, procurement & construction as well as the transport and installation of the platform.

The topside for the Oseberg Vestflanken 2 unmanned wellhead platform sailed out from Heerema Fabrication Group’s yard in Zwijndrecht, The Nederlands, on Sunday June 25. The jacket followed on Monday June 26.

The 900 tonnes topside has a length of 25 meters, a width of 23 meters and a height of 20 meters. The 4,400-tonnes jacket has a height of 138 meters and a foot print of 36 x 36 meters.

Heerema Marine Contractors’ (HMC) semi-submersible crane vessel (SSVC) Hermod installed the jacket and the topside in the Oseberg area in the Norwegian part of the North Sea, about 130 kilometers north-west of Bergen.

This installation represents the first of three planned phases for developing the remaining reserves in the Oseberg area.

The Oseberg Vestflanken development consists of an unmanned wellhead platform with 10 well slots. Two existing subsea wells will also be reused.

The field development will provide 110 million barrels of oil equivalent. Production start is scheduled for the second quarter of 2018.

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