Eldfisk is an oilfield that also contains some gas. The field was discovered in 1970, approved for development in 1975 and started production in 1979.
Eldfisk is the second largest of four producing fields in the Greater Ekofisk Area and one of the largest on the Norwegian continental shelf. The field is located in block 2/7, about 16 kilometers south of Ekofisk, not far from the UK and Danish shelves. The water depth in the area is just under 70 meters.
The reservoir consists of naturally fractured chalk (cretaceous) located at depths of 2700-2900 meters. The Eldfisk field is covered by production license (PL) 018. ConocoPhillips is the operator with an ownership interest of 35.11 percent.
Eldfisk is developed with a total of four platforms. Three of them are connected with bridges (the Eldfisk Complex), while the fourth, Eldfisk 2/7 Bravo, is located about six kilometers northwest of the Eldfisk Complex.
THE ELDFISK COMPLEX
The Eldfisk Complex consists of the Eldfisk 2/7 A, Eldfisk 2/7 FTP and Eldfisk 2/7 E platforms.
Eldfisk 2/7 A is a combined living quarters, drilling and production platform with 112 beds. The production stream is sent to Eldfisk 2/7 FTP for processing before further transport to Ekofisk 2/4 J.
Eldfisk 2/7 FTP is a process platform for production from the Eldfisk and Embla fields. The platform receives oil and gas from Eldfisk 2/7 A through the bridge connection and from Embla through a 5.2-kilometer oil and gas pipeline. After processing, the oil is pumped further to Ekofisk 2/4 J and from there to the receiving terminal in Teesside. Most of the produced gas is sent to Eldfisk 2/7 E for drying and compression before further distribution as lift gas for wells. The rest of the produced gas is sent untreated to Ekofisk 2/4 J via pipeline.
Eldfisk 2/7 E is an unmanned water injection platform with a bridge connection to Eldfisk 2/7 FTP. The platform started operations in 1999 and is currently operated from a control room at the company's headquarters at Tananger.
The delivery rate is approximately 650,000 barrels of treated water per day. About half of the water is injected into the Eldfisk reservoir under high pressure. The rest is transported through a 24 kilometer pipeline to the Ekofisk 2/4 K water injection platform for injection on Ekofisk.
ELDFISK 2/7 B
Eldfisk 2/7 B is a combined drilling, production and process platform that also has a living quarters with 96 beds.
The platform produces oil and gas from 19 wells. The oil is separated and stabilised, while the gas is dried and compressed before further transport to Ekofisk 2/4 J.