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Neptune Energy commences final well campaign on Duva

Neptune Energy used the Deepsea Yantai to drill Dugong, which confirmed hydrocarbons last week.
Neptune Energy is using the Deepsea Yantai rig.

Operator Neptune Energy and its partners today announced drilling has begun on four production wells on the Duva field in the Norwegian sector of the North Sea.

The wells are being drilled by the Deepsea Yantai, a semi-submersible rig operated by Odfjell Drilling.

All four wells were pre-drilled and cased off at a depth of 2,500 metres, prior to starting the final drilling campaign.

Duva is a fast-track project being developed as a subsea installation with three oil producers and one gas producer, tied back to the Neptune-operated Gjøa semi-submersible platform.

Neptune Energy’s Director of Projects & Engineering in Norway, Erik Oppedal, said: “This is the final phase of the Duva development project, and we are currently working to accelerate the start-up date.

“An efficient drilling campaign forms an integral part of achieving this. Duva will both increase production and extend the operational life of our operated Gjøa platform.”

The Deepsea Yantai is now set to drill the reservoir sections, install the lower completions and execute well clean-up activities.

The drilling work is estimated to take around 110 days.

Duva is scheduled to come online in the third quarter of 2021 and will add approximately 25,000 barrels (gross) of oil equivalent per day (boepd) to the Gjøa facility.

The subsea works associated with Duva were successfully completed in 2020, with the four subsea trees installed in March 2021, successfully overcoming significant challenges presented by the COVID-19 pandemic.

The Duva oil and gas field was Neptune’s first discovery in the Norwegian North Sea, a strategically important area supporting the company’s growth.

It is located 14 km northeast of the Gjøa field, at a water depth of 360 metres.

Licence partners on Duva, PL 636: Neptune Energy (Operator and 30%), Idemitsu Petroleum Norge (30%), PGNiG Upstream Norway (30%), Sval Energi (10%).

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