Oseberg oil field

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Oseberg is an oil field in the Norwegian sector of the North Sea.

The Oseberg petroleum field in the North Sea is situated in approximately 150 metres of water in block 30/6 and 30/9 west of Bergen, Norway producing a little less than 1/2 million barrels of oil per day, along with gas. Norwegian company Hydro (or Norsk Hydro) is operator with a 34% stake. Oseberg started production in 1988 from the so called "Oseberg Field Center". In 1988 this consisted of Oseberg A and B platforms linked by a bridge. In later years Oseberg D platform was added, connecting Oseberg A with a new bridge. For picture, see Oseberg home page: http://www.hydro.com/en/our_business/oil_energy/production/oil_gas_norway/oseberg_field.html Oseberg A has a 4-leg concrete structure that carried the fully furniced topside as it was floated out to the field in 1988. "A" contains the field's living quarters, helideck, electrical production, produced petroleum separation, Oil pumping functions to Sture onshore terminal, reservoir water injection and other utilities. "B" is basically a steel jacket-supported drilling platform with a possibility for (6 by 8 =) 48 well capability. "D" was made necessary to cater for the gas export which started in 2000. Up to then, gas had been reinjected to uphold the reservoir pressure. Now gas is exported via Heimdal Platform to Central Europe. Several satellite platforms have been erected to "tap" the reservoir at distances not reached by the Field Center. Other platforms normally considered to be included in the Oseberg field are: Oseberg C, Brage, Oseberg East and Oseberg South. In addition there are several sub-sea developments such as J-structure, Tune and Vestflanken. More subsea developments are ongoing.