Neptune Energy has announced the commencement of the final phase of the Duva development project.
The project involves drilling four production wells on the Duva field in the Norwegian sector of the North Sea.
Deepsea Yantai, a semi-submersible rig operated by Odfjell Drilling, is deployed to drill the four wells.
The drilling campaign began after all four wells were pre-drilled and cased off at a depth of 2,500m.
Now, the rig will drill the reservoir sections, install the lower completions and carry out well clean-up activities.
The campaign is expected to complete in around 110 days.
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The Duva oil and gas field is located around 14km north-east of the Gjøa field at a water depth of 360m.
Neptune Energy is the operator of the field with 30% interest. The other stakeholders are Idemitsu Petroleum Norge (30%), PGNiG Upstream Norway (30%), Sval Energi (10%).
The Duva development project involves setting up a subsea installation that will be tied back to the Neptune-operated Gjøa semi-submersible platform. The subsea works were completed last year.
Neptune Energy Norway Projects & Engineering director 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 Duva field is expected to become online in the third quarter of this year. According to Neptune Energy, the asset’s gross 2P reserves are 88MMboe (gas 76%) and will add around 25,000 barrels (gross) of oil equivalent per day (boepd) to the Gjøa facility.