Albuskjell oil and gas field

The Albuskjell oil and gas field was a crude oil and associated gas production field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1979, peak oil and gas was achieved in 1982. Production ceased in 1998 and the field installations were dismantled by 2013.

The field The characteristics of the Albuskjell field reservoir are as follows. FieldAlbuskjell ReservoirGas and condensate: Maastrichtian and lower Paleocene chalk.

Main reservoir: Upper Cretaceous Tor formationBlock1/6Reservoir depth3,200 m, 10,600 feetAPI gravity48°Gas Oil ratio (GOR)13,043 scf/bbl (standard cubic feet / barrel)Sulphur content0.5%Pressure7,266 psi (50,097 kPa)Discovery August 1972Recoverable reserves172 million barrels oil; 2.4 billion cubic feet gas

Owners and operator The field was owned and operated by ConocoPhillips Skandinavia AS.

Infrastructure The Akbuskjell field was developed through two offshore installations: NameAlbuskjell 'A'Albuskjell 'F'CoordinatesBlock1/62/4Water depth71m71 mBridgeTo flare structureTo flare structureInstallationSeptember 1976March 1977FunctionDrilling, production and accommodationDrilling, production and accommodationProduction startMay 1979July 1979TypeSteel jacketSteel jacketSubstructure weight tonnes8,9027,190Topsides weight tonnes10,64911,418Number of wells15 (20 slots)10 (20 slots)Legs1212Piles1212Flare3-leg jacket and intermediate support3-leg jacket and intermediate supportStatusDecommissionedDecommissionedExport, liquids18-inch 5.28-mile pipeline to Albuskjell F18-inch 8.125-mile pipeline to Ekofisk RExport, gas24-inch 2.28-mile pipeline to Albuskjell F18-inch 8.125-mile pipeline to Ekofisk RDesign contractorTecnomareTecnomareJacket fabricationAker Trondelag at VerdalNAPM a VlissingenDeck fabricationAker Stord at StordAker Stord at StordAccommodation46 originally, 96 replacement in 198346 originally, 96 replacement in 1983

Production The design production capacity of Albuskjell 'A' was 79,400 bopd (barrels of oil per day) and 274 mmscfd (million standard cubic feet per day) of gas. Initial separation was at 1,280 psia (88.3 bar).

The production capacity of Albuskjell 'F' was almost identical, 79,400 bopd and 273 mmscfd. Process facilities included gas dehydration and oily water treatment. Peak production was 80,000 bopd and 450 mmscfd in 1982.

Production from the Albuskjell field was by natural depletion. The oil, natural gas liquids (NGL) and gas production profile of the Albuskjell field is as shown.

+Albuskjell production profileYearOil (million standard m3 oil equivalentNGL (MSm3OE)Gas (MSm3OE)19790.5311580.0602890.65195919801.4416720.2077051.77909319811.426210.2683752.24855819820.952930.2509011.99816919830.6973420.2534511.65454619840.4615880.1690061.1834819850.3572910.1566441.02621319860.285250.1293240.94551119870.2157860.1063150.77824319880.1755720.0959230.61300419890.14150.0670160.45612919900.108940.0458380.33858219910.0908450.0313970.27118319920.0867810.0268080.26609119930.0960740.0325940.30871319940.0810220.0276680.26382619950.0738780.024480.23619719960.0543460.0210440.21756719970.0461370.0200380.19169919980.0295430.0116050.10563 Albuskjell ceased in production in 1998 and the installations were removed from the field in 2011 and 2013. Significant reserves remain in place and may be exploited in future.

Albuskjell oil and gas field

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