Neptune Energy has started production on the Fenja joint venture oil and gas field in the Norwegian Sea.
FENJA
Fenja is located 120km north of Kristiansund at a water depth of 325 metres.
Neptune estimates total reserves of between 50 and 75 million boe, of which 75% is oil and 25% is gas.
PRODUCTION
Fenja is expected to produce 35,000 barrels of oil equivalent per day (boepd, gross), via two oil producers, with pressure support from one water injector and one gas injector.
The development comprises two subsea templates tied back to the Equinor-operated Njord A platform.
A 36km electrically trace-heated (ETH) pipe-in-pipe solution transports oil from the Fenja field to the platform for processing and transport.
The tie-back to Njord A is the world’s longest ETH subsea production pipeline.
Neptune said that due to the high wax content of the Fenja field’s oil, the contents of the pipeline must be warmed to a temperature above 28 degrees Celsius before starting the flow after a shut down.
During normal production, the temperature in the pipeline is well above this temperature.
COST-EFFECTIVE
Managing director in Norway and the UK, Odin Estensen added that the Fenja development was an excellent example of how the oil and gas industry used innovative technologies to overcome challenges.
“The ETH pipe-in-pipe solution is crucial for transporting the oil, and is a creative, cost-effective approach that enables the field to be tied back to existing infrastructure.
“Fenja is also located in a strategically important growth area for Neptune Energy, with a number of other interesting prospects nearby.”
Licence partners comprise Neptune as operator (30%), Vår Energi ASA, (45%), Sval Energi AS (17.5%) and DNO (7.5%).