Albuskjell oil and gas field
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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 characteristics of the Albuskjell field reservoir are as follows.[1][2][3]
| Field | Albuskjell |
| Reservoir | Gas and condensate: Maastrichtian and lower Paleocene chalk.
Main reservoir: Upper Cretaceous Tor formation |
| Block | 1/6 |
| Reservoir depth | 3,200 m, 10,600 feet |
| API gravity | 48° |
| Gas Oil ratio (GOR) | 13,043 scf/bbl (standard cubic feet / barrel) |
| Sulphur content | 0.5% |
| Pressure | 7,266 psi (50,097 kPa) |
| Discovery | August 1972 |
| Recoverable reserves | 172 million barrels oil; 2.4 billion cubic feet gas |
Owners and operator
The field was owned and operated by ConocoPhillips Skandinavia AS.[1]
Infrastructure
The Akbuskjell field was developed through two offshore installations:[3]
| Name | Albuskjell 'A' | Albuskjell 'F' |
| Coordinates | 56.462886°N 2.940008°E | 56.602536°N 3.053947°E |
| Block | 1/6 | 2/4 |
| Water depth | 71m | 71 m |
| Bridge | To flare structure | To flare structure |
| Installation | September 1976 | March 1977 |
| Function | Drilling, production and accommodation | Drilling, production and accommodation |
| Production start | May 1979 | July 1979 |
| Type | Steel jacket | Steel jacket |
| Substructure weight tonnes | 8,902 | 7,190 |
| Topsides weight tonnes | 10,649 | 11,418 |
| Number of wells | 15 (20 slots) | 10 (20 slots) |
| Legs | 12 | 12 |
| Piles | 12 | 12 |
| Flare | 3-leg jacket and intermediate support | 3-leg jacket and intermediate support |
| Status | Decommissioned | Decommissioned |
| Export, liquids | 18-inch 5.28-mile pipeline to Albuskjell F | 18-inch 8.125-mile pipeline to Ekofisk R |
| Export, gas | 24-inch 2.28-mile pipeline to Albuskjell F | 18-inch 8.125-mile pipeline to Ekofisk R |
| Design contractor | Tecnomare | Tecnomare |
| Jacket fabrication | Aker Trondelag at Verdal | NAPM a Vlissingen |
| Deck fabrication | Aker Stord at Stord | Aker Stord at Stord |
| Accommodation | 46 originally, 96 replacement in 1983 | 46 originally, 96 replacement in 1983 |