Offshore staff
STAVANGER, Norway — Neptune Energy has started production from the Fenja oil and gas field, a long-distance tieback to the Njord A semisubmersible platform in the Norwegian Sea.
Fenja, 120 km north of Kristiansund in 325 m water depth, will eventually deliver 35,000 boe/d via two oil producer wells, with pressure support from one water injector and one gas injector.
The development comprises two subsea templates with a 36-km electrically trace-heated (ETH) pipe-in-pipe, taking Fenja’s oil to Njord A field to the platform for processing and onward transport. The ETH arrangement is needed because of Fenja’s high wax content. Following a shutdown, hydrocarbons in the pipeline must be warmed up to a temperature above 28°C before resuming the flow. In normal production mode, the temperature in the pipeline is well above this temperature.
Neptune estimates the field’s reserves in the range 50 MMboe to 75 MMboe, of which 75% is oil and 25% is gas.
Projects and Engineering Director in Norway, Erik Oppedal, said, “The ETH pipeline represents an important technological step, made possible through excellent collaboration between TechnipFMC and Neptune Energy. It could also unlock opportunities to develop future tieback developments.”
Other partners in the development are Vår Energi, Sval Energi and DNO.
04.28.2023
