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Duva umbilical operation completed

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Oilfield Technology,

The pull-in of Duva’s dynamic umbilical was safely completed this week, at the Neptune-operated Gjøa semi-submersible platform. The operation was performed while Gjøa was in normal production; a first for Neptune Energy and Gjøa.

The Duva field is being developed as a subsea installation with three oil producers and one gas producer, tied-back to Gjøa. The umbilical will transfer power, hydraulics, chemicals and communication between the Duva subsea development and the Gjøa platform.

Successful connection of umbilical for the Duva project from Neptune Energy on Vimeo.

Director of Projects and Engineering for Neptune Energy Norge, Erik Oppedal, said: “The connection of the Duva umbilical is an important milestone as we progress towards first oil from the Duva field in 2021. The Norwegian sector is an important part of Neptune’s geographically-diverse and gas weighted portfolio and the development of Duva will increase production and extend the production life of our operated Gjøa platform.”

The safe and successful pull-in during production required careful planning and coordination between Neptune Energy, Gjøa and TechnipFMC. The operation was conducted by the vessel North Sea Atlantic over the course of five days.

The Duva umbilical is comprised of an 806 m dynamic section, connected to a 12.3 km static section via a transition joint.

The next main subsea operation will be the spool tie-ins, followed by a drilling campaign by Deepsea Yantai, operated by Odfjell Drilling. Topsides work will continue until the current forecasted first oil date of 3Q21.

Licence partners: Neptune Energy (Operator, 30%), Idemitsu Petroleum Norge (30%), PGNiG Upstream Norway (30%), Sval Energi (10%)

The Duva oil and gas field is Neptune’s first discovery in the Norwegian North Sea. It is located 14 km northeast of the Neptune-operated Gjøa field at a water depth of 340 m. Gross 2P reserves are 88 million boe (gas 76%).

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