Cod oil gas and condensate field
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The Cod oil gas and condensate field was a gas and associated natural gas liquids (NGL) production field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1977, peak gas and NGL was achieved in 1980. Production ceased in 1998 and the field installation was dismantled in 2013.
The characteristics of the Cod field reservoir were as follows.[1][2][3]
| Field | Cod |
| Block | 7/11a |
| Reservoir | Paleocene sand |
| Reservoir depth | 9,700 feet |
| API gravity | 49° |
| Oil Gas ratio (OGR) | 70 barrels per million standard cubic feet at 210 °F |
| Pressure | 5,565 psi |
| Discovery | June 1968 |
| Recoverable reserves | 20 million barrels oil condensate; 250 billion cubic feet gas |
Owner and operator
The field was owned and operated by ConocoPhillips Skandinavia AS.[2]
Infrastructure
The Cod field was developed through an offshore installation.[1][2]
| Name | Cod |
| Coordinates | 57.069553°N 2.434722°E |
| Block | 7/11 |
| Water depth, metres | 72.5 |
| Bridge | To flare tower |
| Installed | May 1975 |
| Function | Drilling, production, accommodation |
| Production start | December 1977 |
| Type | Fixed steel |
| Substructure weight, tonnes | 5,094 |
| Topsides weight, tonnes | 5,167 |
| Number of wells | 9 |
| Legs | 8 |
| Piles | 8 |
| Flare | Tripod tower bridge link |
| Status | Dismantled |
| Export, liquids and gas | 46.9 mile, 16-inch, 2-phase pipeline to Ekofisk |
| Design contractor | Kvaerner |
| Jacket fabrication | UIE St. Wandrille |
| Deck fabrication | UIE St. Wandrille |
| Accommodation | 52 |