Neptune Energy has successfully installed subsea oil and gas production flowlines and gas lift flowlines for its Duva & Gjøa P1 developments in the Norwegian sector of the North Sea, the company said on July 23.
Neptune and its partners accelerated key elements of the development schedule of the subsea tiebacks, which will connect two templates to the nearby Neptune-operated Gjøa platform, with Gjøa P1 in particular on track to achieve first oil two months ahead of the original plan. Parallel works have been conducted where possible across the drilling, engineering, fabrication and installation disciplines.
The milestones were reached just one year after the development plans for the Duva (PL636) and Gjøa P1 (PL153) projects were approved by the Norwegian authorities.
“Developing these two live projects in parallel provides greater flexibility and allows Neptune and its partners to increase efficiency and reduce costs. We have taken a campaign approach in our use of vessels and common equipment, achieving positive synergies through joint mobilization and focusing on collaboration between project teams for Neptune and our key contractors and partners,” Crawford Brown, Neptune’s head of the subsea Gjøa project, said.
Final fabrication of the tie-in spools for the development projects is ongoing at TechnipFMC’s spoolbase in Evanton, U.K. The manufacture of both Duva and Gjøa P1 subsea manifolds is nearing completion, and full system integration testing is underway.
The subsea manifolds are scheduled for installation later this year, followed by the associated tie-in operations. Development drilling on both Gjøa P1 and Duva will continue up to the end of February next year, while key topside work on the Gjøa platform will be carried out consecutively.
Neptune anticipates first production from Gjøa P1 later this year, with first production from Duva anticipated in the third quarter of 2021.
Recommended Reading
Hibernia IV Joins Dawson Dean Wildcatting Alongside EOG, SM, Birch
2025-01-30 - Hibernia IV is among a handful of wildcatters—including EOG Resources, SM Energy and Birch Resources—exploring the Dean sandstone near the Dawson-Martin county line, state records show.
SM Energy Marries Wildcatting and Analytics in the Oil Patch
2025-04-01 - As E&P SM Energy explores in Texas and Utah, Herb Vogel’s approach is far from a Hail Mary.
Oxy CEO: US Oil Production Likely to Peak Within Five Years
2025-03-11 - U.S. oil production will likely peak within the next five years or so, Oxy’s CEO Vicki Hollub said. But secondary and tertiary recovery methods, such as CO2 floods, could sustain U.S. output.
Ring May Drill—or Sell—Barnett, Devonian Assets in Eastern Permian
2025-03-07 - Ring Energy could look to drill—or sell—Barnett and Devonian horizontal locations on the eastern side of the Permian’s Central Basin Platform. Major E&Ps are testing and tinkering on Barnett well designs nearby.
Burleson: Rockcliff Energy III Builds on Past Successes
2025-04-09 - Rockcliff Energy III is building on past experiences as it explores deeper in the Haynesville, CEO Sheldon Burleson told Hart Energy at DUG Gas.