Neptune Energy, together with its partners Vår Energi, Sval Energi and DNO, has started production from the Fenja field in the Norwegian Sea.
Neptune said Fenja was expected to produce 35,000 barrels of oil equivalent per day (boepd, crude), through two oil producers with pressure support from a water injector and a gas injector.
The development consists of two subsea templates tied to the Njord A platform operated by Equinor. A 36-kilometer electrically heated pipe-to-pipe (ETH) solution transports oil from the Fenja field to the platform for processing and transportation, the company said in a statement.
Due to the high wax content of Fenja oil, the contents of the pipe must be heated to a temperature above 28 degrees Celsius before restarting the flow after a stop. During normal production, the temperature in the pipeline is well above this temperature. The tie-in to Njord A is the longest ETH subsea production pipeline in the world, the statement said.
“The development of Fenja is an excellent example of how our industry is using innovative technologies to overcome challenges. The ETH pipe-in-pipe solution is crucial to transporting oil and is a creative and cost-effective approach that enables linking the field to the existing infrastructure. Fenja is also in a strategically important growth area for Neptune Energy, with other interesting prospects nearby,” stated Odin Estensen, Managing Director of Neptune Energy Norway and UK.
According to Neptune, total reserves are estimated at 50-75 million boe, 75 percent of which is oil and 25 percent is gas.
“The ETH pipeline represents an important technological step, made possible by an excellent collaboration between TechnipFMC and Neptune Energy. It could also unlock opportunities for future tie-in developments,” added Neptune’s project and engineering director in Norway , Erik Oppedal.
As for the field, Fenja is a subsea development in the Norwegian Sea about 74.5 miles north of Kristiansund in a water depth of 1,066 feet. It was discovered in 2014 and PDO was approved in April 2018.
In 2019, the installation of the subsea infrastructure began with the installation of templates, manifolds and umbilicals, as well as water and gas injection. In 2020, the first 9 kilometers of electrically heated pipe-to-pipe production pipeline was installed. The remaining 27 kilometers were installed during the summer of 2021. Production from the Fenja field is expected to last 15 years.
Neptune Energy is the operator of Fenja with a 30 percent stake. Its partners are Vår Energi, Sval Energi and DNO with 45, 17.5 and 7.5 percent, respectively.
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