Oseberg East

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Oseberg Øst
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Location of Oseberg Øst

Country Norway
Location North Sea
Block 30/6
Offshore/onshore Offshore
Coordinates 60°41′20.60″N2°57′11.09″E / 60.6890556°N 2.9530806°E / 60.6890556; 2.9530806 Coordinates: 60°41′20.60″N2°57′11.09″E / 60.6890556°N 2.9530806°E / 60.6890556; 2.9530806
Operator Statoil
Partners Statoil (49.3%)
Petoro (33.6%)
Total S.A. (14.7%)
ConocoPhillips (2.4%)
Field history
Discovery 1981
Start of development 1996
Start of production 1999
Production
Recoverable gas 0.4×10^9 m3 (14×10^9 cu ft)

Oseberg Øst (English: Oseberg East) is an offshore oil field in the North Sea, located east of Oseberg Oil Field. The field was developed with a fixed production, drilling and quarters (PDQ) facility and is operated by Statoil. The first stage phase processing is done at the Oseberg Øst platform. The second and third phase processing of oil is done at the Oseberg Field Center and it is then transported to Sture terminal in Norway through the Oseberg Transport System. [1]

North Sea marginal sea of the Atlantic Ocean

The North Sea is a marginal sea of the Atlantic Ocean located between the United Kingdom, Denmark, Norway, Sweden, Germany, the Netherlands, Belgium and France. An epeiric sea on the European continental shelf, it connects to the ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than 970 kilometres (600 mi) long and 580 kilometres (360 mi) wide, with an area of 570,000 square kilometres (220,000 sq mi).

Oseberg Transport System (OTS) is a pipeline system in western Norway. It is 115 km (71 mi) long and runs from Oseberg, Veslefrikk, Brage, Frøy and Lille-Frigg to Sture terminal, located 65 kilometres (40 mi) north of Bergen, Norway. The operation of the pipeline was commenced in 1988. Total investment in the pipeline construction was about 9.8 billion NOK.

Contents

Technical features

The sea depth at location is 160 metres (520 ft). The trap consists of two fault blocks, separated by a sealing fault. The reservoir lies at a depth of 2,700–3,100 metres (8,900–10,200 ft). It is estimated that the recoverable reserves are up to 27.40 million cubic metres (968×10^6 cu ft) of oil, 400 million cubic metres (14 billion cubic feet) of natural gas and 100,000 tonnes of NGL. Recovery is done through pressure maintenance utilizing both water injection and water alternating gas injection. Maximum daily output is 75,000 barrels per day (11,900 m3/d). [2]

In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock-mass movement. Large faults within the Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes.

Updates

In the recent years, the facility has been modified and drilling of seven wells started. [2] Partners developing the field invested NOK1.9 billion for upgrades and modifications in order to extract more oil from the field without the use of support vessels [3] and increase the recovery rate from 28 to 35%. [4] The upgrades included new drilling fluid module with appurtenant generator and transformer, new process control for zero discharges of drilling waste and pollutant liquids, 20 new cabins, 2 new lifeboats with room for 62 persons, new loading deck for drilling equipment and drilling chemicals. [5]

Norwegian krone currency of Norway and its dependent territories

The krone[ˈkruːnə], plural kroner, is the currency of Norway and its dependent territories. It is subdivided into 100 øre, which have existed only electronically since 2012. The name translates into English as crown.

See also

Grane oil field

Grane is an offshore oil field in the North Sea located 185 km (115 mi) west of the city of Haugesund on the western coast of Norway. It is Norway's first heavy crude oil production field and Statoil's largest heavy oil field in the Norwegian continental shelf. The oil from the field, located in Block 25/11 is transported to Sture terminal via Grane oil pipeline. The injection gas is imported to Grane oil field from the Heimdal, located just north the field.

North Sea oil

North Sea oil is a mixture of hydrocarbons, comprising liquid petroleum and natural gas, produced from petroleum reservoirs beneath the North Sea.

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Oseberg oil field

Oseberg is an offshore oil field with a gas cap in the North Sea located 140 km (87 mi) northwest of the city of Bergen on the southwestern coast of Norway. The field, which is 25 km long by 7 km wide, was discovered in 1979 and its development is known to be one of the significant milestones in emergence of Norway's independent oil and gas industry. The Oseberg field was named after Oseberg ship, one of Norway's most significant archeological discoveries. The ancient Viking ship from the early 9th century was discovered in a 1904 historical excavation of a burial mound at the Oseberg Farm, south of Oslo.

Snorre oil field

Snorre is an oil and gas field in the Tampen area in the southern part of the Norwegian Sea. The sea depth in the area is 300 to 350 metres. Snorre has been operational since August 1992. It was the first field developed by Saga Petroleum.

State's Direct Financial Interest (SDFI) is a portfolio of the Norwegian government's directly owned exploration and production licenses for petroleum and natural gas on the Norwegian continental shelf. The Norwegian government-owned company Petoro has managed the SDFI portfolio since 2001.

Equinor Norwegian oil and gas company

Equinor ASA is a Norwegian multinational energy company headquartered in Stavanger, Norway. It is a petroleum and wind energy company with operations in thirty-six countries. By revenue, while under Statoil name, Equinor was ranked by Forbes Magazine (2013) as the world's eleventh largest oil and gas company and the twenty-sixth largest company, regardless of industry, by profit in the world. The company has about 20,200 employees.

Sleipner gas field natural gas field in the North Sea

The Sleipner gas field is a natural gas field in the block 15/9 of the North Sea, about 250 kilometres (160 mi) west of Stavanger, Norway. Two parts of the field are in production, Sleipner West, and Sleipner East (1981). The field produces natural gas and light oil condensates from sandstone structures about 2,500 metres (8,200 ft) below sea level. It is operated by Statoil. The field is named after the steed Sleipnir in Norse mythology.

Hydro Oil & Gas

Hydro Oil & Gas is a defunct division of Norsk Hydro that operated within the oil and gas industry. On October 1, 2007 it merged with Statoil to form the new corporation StatoilHydro.

Sture Terminal is an oil terminal at Stura in Øygarden municipality, 50 km (31 mi) northwest of Bergen, Norway. It receives oil and condensate from Oseberg, Veslefrikk, Brage, Oseberg Sør, Oseberg Øst, Tune and Huldra fields through 115 km (71 mi) Oseberg Transport System (OTS) and oil from Grane oil field through 212 km (132 mi) Grane oil pipeline.

Grane oil pipeline is a pipeline system in western Norway. It is 220 kilometres (140 mi) long and runs from Grane oil field to Sture terminal, located 65 kilometres (40 mi) north of Bergen, Norway. The pipeline operations commenced with start of production in the Grane oil field.

Oseberg South

Oseberg South is an offshore oil field in the North Sea, located 115 kilometres (71 mi) from the coastline and 13 kilometres (8.1 mi) south of Oseberg Oil Field. Oseberg Sør was discovered in 1984. The field was developed with a fixed production, drilling and quarters (PDQ) facility and is operated by Statoil. The first stage phase processing is done at the Oseberg Øst platform. The second and third phase processing of oil is done at the Oseberg Field Center and it is then transported to Sture terminal in Norway through the Oseberg Transport System. The development of the Oseberg Sør was approved in 1977. Recent updates include approval of J structure which started producing in November 2006 and Oseberg Sør G Sentral which has been developed in 2009.

Heimdal gas field

Heimdal is an offshore natural gas field in the North Sea located 212 kilometres (132 mi) northwest of the Stavanger, Norway. Heimdal serves as a connection hub for processing and distribution of natural gas from satellite fields.

Vale gas field

Vale is an offshore gas field in the North Sea located 16 kilometres (9.9 mi) north of the Heimdal gas field. The depth of the water in the field area is 115 metres (377 ft). Vale is considered a satellite to Heimdal field and is connected to it by a pipeline. Estimated reserves at Vale stand at 2.5 billion cubic metres of natural gas and 21 million barrels (3,300,000 m3) of gas condensate. Vale gas field is expected to produce 1.6 million cubic metres per day of natural gas and 2,600 barrels per day (410 m3/d) of condensate.

Skirne gas field

Skirne which also includes the Byggve deposit is an offshore gas field in the North Sea located 24 kilometres (15 mi) east of the Heimdal gas field and 140 kilometres (87 mi) from Stavanger, Norway. The depth of the water in the field area is 120 metres (390 ft). Both Skirne and Byggve are considered satellites to Heimdal field and are connected to it by subsea pipelines. TotalFinaElf which is the operator had received the approval from Norwegian Ministry of Petroleum and Energy for development of the fields in 2002. The company holds 40% interest in the project. Other stakeholders are Petoro and Centrica. Both Skirne and Byggve have an estimated 230 billion cubic feet of natural gas and about 10 million barrels of condensate, combined.

Brage oil field

Brage is an offshore oil field in the North Sea located 120 km (75 mi) northwest of the city of Bergen on the western coast of Norway and 13 km (8.1 mi) east of Oseberg Field Center. The field also contains gas. The water depth at the location is 140 metres (460 ft). The field was developed with a fixed integrated production, drilling and accommodation facility The oil from the field is pumped through a pipeline to Oseberg A facility from where it is transported to Sture terminal via Oseberg Transport System. The gas from the field is exported through Statpipe system to Kårstø. It is estimated that Brage may hold up to 20,000,000 barrels (3,200,000 m3) to 25,000,000 barrels (4,000,000 m3) of recoverable oil.

Ula oil field

Ula is an offshore oil field located in the southern Norwegian section of North Sea along with Gyda, Tambar and Tambar East fields making up the UGT area, usually attributed to DONG Energy's main areas of exploration and production activity.

Oselvar oil field

Oselvar is an offshore oil field located 250 km (160 mi) southwest of Stavanger in the southern Norwegian section of North Sea, close to the British border. Oselvar was discovered in 1991. The field is also at 23 kilometres (14 mi) distance from Ula field to which it is tied up to via subsea pipeline. Estimated reserves at Oselvar stand at 38 million barrels of oil and 4 billion cubic metres of natural gas. The water depth at location is 72 metres (236 ft).

Gyda Oil Field

Gyda is an offshore oil field located in the southern Norwegian section of North Sea along with Ula, Tambar and Tambar East fields making up the UGT area, usually attributed to DONG Energy's main areas of exploration and production activity. The Gyda field was discovered in 1980 and started producing on June 21, 1990. The field contains confirmed 39.6 million m3 of oil and 6.6 billion cubic meter of natural gas.

Tambar oil field

Tambar is an offshore oil field located in the southern Norwegian section of North Sea along with Ula and Gyda fields making up the UGT area, usually attributed to DONG Energy's main areas of exploration and production activity. The Ula field was discovered in 1983 and came online in 2001. Tambar was discovered in 1983 and became operational in July 2001. It contains confirmed 46.9 million m3 of oil.

Blane oil field

Blane is an offshore oil field located in the southern Norwegian and northern British sectors of North Sea. The Blane facilities are located on the British continental shelf and are tied to the Ula field which is located 34 km (21 mi) to the northeast via subsea pipeline. The field was discovered in 1989 and produces high quality oil.

References