Oselvar (Norwegian: Oselvarfeltet) is a subsea oil field, abandoned since April 2018, located 250 km (160 mi) southwest of Stavanger in the southern Norwegian section of the North Sea, close to the British border.[1] Oselvar was discovered in 1991.[2] The field is located at 23 kilometres (14 mi) distance from the Ula field to which it was tied back.[3] The original estimated reserves at Oselvar were 38 million barrels of oil[4] and 4 billion cubic metres (140×109 cu ft) of natural gas.[5] The water depth at location is 72 metres (236 ft). In January 2022, DNO ASA reportedly had approval from Norway’s Petroleum Safety Authority (PSA) to remove subsea facilities from the Oselvar field. The Oselvar field installations were to be decommissioned by the end of 2022.[6]
| Oselvar | |
|---|---|
  Location of Oselvar | |
| Country | Norway |
| Region | North Sea |
| Block | 1/2, 1/3 |
| Offshore/onshore | Offshore |
| Coordinates | 56°55′59″N 2°40′16″E / 56.93306°N 2.67111°E |
| Operator | DNO Norge AS |
| Partners | DNO Norge AS (55%) Cape Omega AS (45%) |
| Field history | |
| Discovery | 1991 |
| Start of production | November 2011[1] |
| Abandonment | April 2018 |
| Production | |
| Estimated oil in place | 38 million barrels (~6.5×106 t) |
| Estimated gas in place | 141×109 cu ft (4.0×109 m3) |
Ownership
editDNO Norge AS is since 2019 the formal operator of the field with 55% of interest in the project. Production License 274 which covers the area of the field was given in 2002 to then operator DONG.[5] As per 2020 the only other partner is CapeOmega AS (45%). The total development cost was NOK 4.7 billion. [3] "Dong makes plans for Oselvar find". Upstream Online. NHST Media Group. 2009-03-09. Retrieved 2010-03-25.</ref>[7]
Production
edit
Oselvar was developed with three production wells. Produced oil and gas was transported to the Ula field platform for processing via the Oselvar module. Once processed, the oil was pumped via the Norpipe system to Teesside, UK.[3] Although production was scheduled to start in November 2011,[1] production actually started on April 14, 2012.
See also
editReferences
edit- ^ a b c "The shelf in 2009 - Development". Norwegian Petroleum Directorate. 2010-01-10. Retrieved 2010-03-25.
- ^ OLJEDIREKTORATET Norwegian Petroleum Directorate. Field: Oselvar
- ^ a b c "Oselvar Field Development Plan Submitted to Norwegian Authorities". Rigzone. 2009-03-09. Retrieved 2010-03-25.
- ^ "DONG sees Oselvar in Ipswich oil find". Scandinavian Oil and Gas Magazine. 2008-08-20. Retrieved 2010-03-25.
- ^ a b SubSeaIQ. Offshore Field Developments. Oselvar
- ^ "DNO given go-ahead for North Sea Oselvar disposals". Offshore. 2022-01-12. Retrieved 2024-08-31.
- ^ "DONG Energy submits development plan and increases equity in Oselvar". DONG Energy. 2009-03-09. Retrieved 2010-03-25.