Neptune Energy began drilling four production wells on Duva field on PL 636 in the Norwegian sector of the North Sea about 14 km northeast of Gjøa field.
The wells are being drilled by Odjfell Drilling’s Deepsea Yantai semi-submersible rig in 360 m of water. All four wells were pre-drilled and cased off at a depth of 2,500 m prior to starting the final drilling campaign. The rig is set to drill the reservoir sections, install the lower completions, and execute well clean-up activities. Drilling is estimated to take 110 days.
Duva is a fast-track project being developed as a subsea installation with three oil producers and one gas producer and tied back to the Neptune-operated Gjøa semi-submersible platform. The drilling begins the final phase of development. Subsea works were completed in 2020, with the four subsea trees installed in March 2021. Duva is scheduled to come online third-quarter 2021 and add about 25,000 boe/d to the Gjøa platform.
Neptune Energy is operator with 30%. Partners are Idemitsu Petroleum Norge (30%), PGNiG Upstream Norway (30%), and Sval Energi (10%).
