Neptune Energy, Petoro, Wintershall Dea and OKEA have announced the commencement of production from the Gjøa P1 development in the Norwegian sector of the North Sea.
Neptune Energy Norge has a 30% stake in the field and serves as operator. Petoro, Wintershall Dea Norge and OKEA hold 30%, 28% and 11% stakes respectively.
Gjøa P1 is developed through a subsea template linked to the current infrastructure at the Gjøa field.
The P1 development allows the licence to recover huge quantities of oil and gas from deeper reservoirs, as well as use the spare production capacity.
The project is a two-well development, with one being an oil producer and the other a gas producer.
The gas well was started up this week and represents a major milestone for the Gjøa P1 project and the Gjøa licence.
Within a few days, the oil well is expected to come onstream.
Underlining the platform’s position as a key hub, the start-up of Gjøa P1 raises the total remaining developed reserves at Gjøa by 30%. This is expected to boost resource utilisation and cut production costs per barrel.
According to the firms, Gjøa is now set to generate more than 100 million barrels of oil equivalents, much more than estimated when production commenced in 2010.
OKEA SVP for projects and technology Knut Gjertsen said: “Gjøa is an important strategic hub for OKEA, and we are pleased to see the P1 development now coming on stream.
“OKEA is also considering other tie-back options to the Gjøa platform, including last year’s acquisition from Equinor of a 40% operated interest in the neighbouring Aurora discovery.”
The Gjøa field is located in the northern part of the North Sea, where the water depth is 360m.
Discovered in 1989, the Gjøa development plan was approved by the Norwegian authorities in 2007.
The field consists of several segments. It is developed with a semi-submersible production facility and features five subsea templates.
Production commenced in 2010 and the oil is exported by pipeline to Mongstad and gas by pipeline to St Fergus in the UK.
The Gjøa P1 segment is located in the northern part of the field and linked back to the current infrastructure via a 5km oil pipeline and a 2km gas pipeline.