The 22,000t topside sailed from the Aibel yard in Haugesund to Bømlafjorden at Stord where it was transferred from the barge to the Pioneering Spirit vessel.
The vessel then transferred the steel structure to the jacket on the Johan Sverdrup field where actual installation job took place in three hours, Equinor said.
Equinor noted that this is the second of four planned platforms to be installed in the first development phase of the Johan Sverdrup field.
Equinor Johan Sverdrup senior vice-president Trond Bokn said: “This is an important milestone in the Johan Sverdrup installation campaign. Two of the four Johan Sverdrup platforms are now in place.
“The power cables to the field were rolled out last week, and so far, the installation of Norway’s biggest oil pipeline has gone very well, so this is definitely moving in the right direction.”
Installation work was carried out by Allseas’ Pioneering Spirit vessel, which allowed entire topsides of up to be lifted in one, single lift.
The Johan Sverdrup drilling platform, which is fully completed and 85% fully tested, will now undergo hook-up and testing.
Scheduled to be operational this autumn, the platform will be tied back with eight wells pre-drilled by the Deepsea Atlantic semi-submersible in 2016 starting from the end of the year.
Johan Sverdrup drilling and well head Stig Åtland said: “We look forward to putting the drilling platform on stream, and completing the pre-drilled wells towards the end of the year and next year, preparing for first oil in late 2019.”
The Johan Sverdrup field, which is planned to be developed in phases, is estimated to have recoverable resources of between 2.1-3.1 billion barrels of oil equivalent.
First phase of the Johan Sverdrup project is scheduled to commence in late 2019 with production capacity estimated at 440,000 barrels of oil per day.
