Gjøa Oil and Gas Field

Summary Information

• Operator: Neptune Energy
• Country: Norway
• Location: off the coast of the city of Florø
• Production start: 2010
• Partners: Wintershall, Okea 12%
• Type: Oil & Gas
• Estimated Reserves:
• Production Volume:

Description

• Gjøa was discovered in 1989. It is a combined oil and gas field located off the coast of the Norwegian city of Florø.
• Statoil (owner of 20 %) is the operator in the field development phase, while Gaz de France (30 %) will be the operator. The other partners are Petoro (30 %), AS Norske Shell (12 %), RWE Dea Norge AS (8 %).
• The. Camilla, Belinda and Fram B fields (known as CBB and operated by Hydro) will be connected to the Gjøa semisubmersible platform by a common flowline subsea tie-back solution.
• Gas from the Gjoa platform will be exported to Scotland via the British pipeline Flags, while the oil will be transported in the Troll Pipeline II to Statoil's Mongstad Refinery near Bergen, Norway.
• The Gjøa production facilities topsides measures 110 meters long and 85 meters wide and weighs in just below the 20.000 tonnes mark. The hull weighs 14.200 tonnes.
• The Vega Gas and Condensate Field is tied back to Gjoa
• The Gjøa P1 segment is located in the northern part of the field and is tied back to the existing infrastructure via a 5 km oil pipeline and a 2 km gas pipeline. The project is a two-well development with one oil and one gas producer.
• Duva was developed as a subsea installation with three oil producers and one gas producer in a tie-back to Gjøa. The field is operated from the Gjøa semi-submersible platform via a dedicated umbilical.

Nova

• Nova is located in the Norwegian North Sea, about 120 kilometres northwest of Bergen and approximately 17 kilometres southwest of Gjøa. The water depth is roughly 370 metres. The Nova field consists of two subsea templates, one with three oil producers and one with three water injectors, tied back to the Gjøa platform.
• The expected recoverable gross reserves from the field are estimated at 90 million barrels of oil equivalent (boe), of which the majority will be oil.

Contractors

• **Samsung Heavy:** Semi-submersible hull construction
• **Technip:** Fabrication and installation of the infield pipelines
• **Aker Kvaerner:**
  • Manufacture and supply of 16 kilometres of dynamic and static umbilicals
  • Detail design of topside and hull, procurement, construction and hook-up of topside, and mating of topside and hull
• **Saipem:** Pipeline Installation of Gjoa Export Pipelines
• **Dresser-Rand:** Provision of three centrifugal compressor trains driven by variable speed electric motors, and one DATUM compressor package driven by a gas turbine
• **ABB:** Building a 98-kilometer underwater link from Mongstad

History

• 1989 - Gjøa was discovered
• 2006 - Statoil and Aker Kvaerner signed a MOU for the contract for the semisubmersible platform
• 2007 - Gjoa umbilicals contract awarded to Aker Kvaerner
• 2007 - Aker Kvaerner awarded floater installation contract
• 2007 - ABB awarded subsea cable contract
• 2010 - Production started
• 2013 - Statoil reduced its stake to 5%
• 2014 - Statoil sold its stake to Wintershall
• 2018 - Okea acquires Shell's stake
• 2021 - Gjøa P1 starts production
• 2021 - Sval Enerji acquires Edison Norge and increases its stake in Nova
• 2022 - Nova field began operating
• 2023 - ENI agrees to acquire Neptune

Geology

• The reservoir contains gas above a relatively thin oil zone in Jurassic sandstones in the Viking, Brent and Dunlin Groups. The field comprises several tilted fault segments with partly uncertain communication and variable reservoir quality. The reservoir depth is about 2 200 metres.

Links

1. NPD, Gjoa
2. International Protective Coatings Platform References
3. Leirvik Living quarters and extensions References
4. Samsung Platform References
5. Saipem Europe Pipeline References
6. Gjøa semisubmersible platform to Aker Kvaerner
7. Gjoa umbilicals contract to Aker Kvaerner
8. Aker Kvaerner awarded another floater installation contract
9. Dresser-Rand Selected to Provide Equipment for Gjoa Offshore Project
10. Technip awarded contract by statoil for installation of Gjøa infield pipelines in Norway
11. ABB wins $72-million order for oil-platform cable
12. Gjøa comes on stream
13. GDF SUEZ takes over operatorship of the Norwegian gas & oil field Gjøa
14. Transaction to realise value and secure long-term growth on the NCS
15. Transaction with Wintershall on Norwegian continental shelf now completed
16. Realising value to further strengthen NCS portfolio
17. Neptune Energy completes the acquisition of ENGIE E&P International SA
18. Shell to sell Draugen and Gjøa interests to OKEA AS
19. TechnipFMC Awarded a Substantial Integrated EPCI (iEPCI™) Contract for the Neptune Energy Duva and Gjøa P1 Projects
20. Gjøa P1 starts production
21. Sval Energi closes acquisition of Edison Norge
22. Nova 1st oil: Wintershall Dea increases production volumes in Norway
23. Eni and Vår Energi to acquire Neptune, a leading independent exploration and production company with low emission, gas-oriented operations in Western Europe, North Africa, Indonesia and Australia