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Encyclopedia > Andrew oilfield

The Andrew oilfield is a relatively small hydrocarbon field in the UK sector of the North Sea 230km North-East of Aberdeen operated by BP. It is produced from a single platform, which is also the hub of the Cyrus and Farragon subsea developments. Oil refineries are key to obtaining hydrocarbons; crude oil is processed through several stages to form desirable hydrocarbons, used in fuel and other commercial products. ... The North Sea is a sea of the Atlantic Ocean, located between the coasts of Norway and Denmark in the east, the coast of the British Isles in the west, and the German, Dutch, Belgian and French coasts in the south. ... Aberdeen (IPA: ; Scottish Gaelic: ) is Scotlands third largest city with a population of 202,370. ... This article is about the corporation known as BP. For other uses, see BP (disambiguation). ... The Hibernia platform is the worlds largest oil platform. ...

Contents

Discovery and development

BP originally discovered oil in the Palaeocene rock in block 16/28 of the UKCS in 1974, with further appraisal work conducted by ConocoPhilips the following year. A gas reservoir was also discovered in the Cretaceous rock below the the Palaeocene. This article is about the corporation known as BP. For other uses, see BP (disambiguation). ... Pumpjack pumping an oil well near Sarnia, Ontario Petroleum (from Greek petra – rock and elaion – oil or Latin oleum – oil ) or crude oil is a thick, dark brown or greenish liquid. ... The Paleocene epoch (65-56 MYA) (early dawn of the recent) is the first geologic epoch of the Palaeogene period in the modern Cenozoic era. ... Natural gas is a gaseous fossil fuel consisting primarily of methane but including significant quantities of ethane, butane, propane, carbon dioxide, nitrogen, helium and hydrogen sulfide. ... An oil reservoir, petroleum system or petroleum reservoir is often thought of as being an underground lake of oil, but it is actually composed of hydrocarbons contained in porous rock formations. ... The Cretaceous Period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic Period (i. ... The Paleocene epoch (65-56 MYA) (early dawn of the recent) is the first geologic epoch of the Palaeogene period in the modern Cenozoic era. ...


At the time, the small size of the field made it uneconomical to develop. It was not until twenty years later when BP put together an alliance of seven contractors to share in the risk of development, including Brown & Root, Santa Fe, Saipem, Highlands Fabricators, Allseas, Emtunga and Trafalgar House. This article is about the corporation known as BP. For other uses, see BP (disambiguation). ... Trafalgar House was a United Kingdom conglomerate with interests in property, property development, construction, passenger shipping and engineering. ...


In 1994, the project was sanctioned and first oil was produced from predrilled wells in 1996. 1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated as the International Year of the Family and the International Year of the Sport and the Olympic Ideal by United Nations. ... 1996 (MCMXCVI) was a leap year starting on Monday of the Gregorian calendar, and was designated the International Year for the Eradication of Poverty. ...


Reserves

The Andrew is estimated to have 150mmbbl of liquid hydrocarbons, mostly oil, with some natural gas condensate. The Andrew oil is light with an API gravity of 40°. There is also a gas cap in the Palaeocene reservoir in addition to the lower cretaceous reservoir and the associated gas from the oil. There is estimated to be 245 mmmscf of recoverable gas, though the lower cretaceous reservoir is not fully appraised. Oil refineries are key to obtaining hydrocarbons; crude oil is processed through several stages to form desirable hydrocarbons, used in fuel and other commercial products. ... Natural Gas Condensate is a natural gas by-product. ... API Gravity is a specific gravity scale developed by the American Petroleum Institute (API) for measuring the relative density of various petroleum liquids. ... The Paleocene epoch (65-56 MYA) (early dawn of the recent) is the first geologic epoch of the Palaeogene period in the modern Cenozoic era. ... An oil reservoir, petroleum system or petroleum reservoir is often thought of as being an underground lake of oil, but it is actually composed of hydrocarbons contained in porous rock formations. ...


Hardware

The Andrew field is produced using a fixed platform, with topsides facilities supported on a four leg steel jacket. The platform is relatively small accomodating only 80 people. It contains a full process plant for separating water and gas from the production fluids. Platform power is provided from three 6MW gas turbines, fed principally from produced gas. The Hibernia platform is the worlds largest oil platform. ...


There are presently 17 operational wells, 15 producing oil from the Palaeocene, one reinjecting gas into the gas cap and another producing gas from the Cretaceous reservoir (known among the asset simply as "The Lower Cretaceous". The Andrew well bay has plenty of room for further wells as it only around 70% utilised. The Andrew also receives flowlines from the Cyrus and Farragon subsea satellites. The Paleocene epoch (65-56 MYA) (early dawn of the recent) is the first geologic epoch of the Palaeogene period in the modern Cenozoic era. ... The Cretaceous Period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic Period (i. ... An oil reservoir, petroleum system or petroleum reservoir is often thought of as being an underground lake of oil, but it is actually composed of hydrocarbons contained in porous rock formations. ...


Processed oil is exported to the Forties pipeline system then on to Cruden Bay. Gas is exported to the Central Area Transmission System to Teeside. Produced water is cleaned in the process plant to sufficient quality that it is dumped overboard. Teesside is the name given to the conurbation in northern England based on Middlesbrough and Stockton, along the banks of the River Tees. ...


Cyrus and Farragon

Cyrus and Farragon are two smaller satellite oil fields in the 16/28 Andrew block. They are both subsea tie-backs to the Andrew platform. Cyrus was originally produced in 1990 by OPV Seillean. It was then redeveloped along with the main Andrew project for restart as a subsea tieback in 1996. It produces through three horizontal wells (though one is presently shut in).


Farragon is a recent development. This small Palaeocene field is still being developed by a dedicated team at BP's North Sea headquarters in Dyce, though it has been producing through two wells since 2006. The Paleocene epoch (65-56 MYA) (early dawn of the recent) is the first geologic epoch of the Palaeogene period in the modern Cenozoic era. ... This article is about the corporation known as BP. For other uses, see BP (disambiguation). ... Dyce is a suburb of Aberdeen, Scotland, about six miles (about nine kilometres) northwest of Aberdeen city, best known for being the location of the citys airport. ...


See also

// North Sea Oil Platforms North Sea oil refers to oil and natural gas (hydrocarbons) produced from oil reservoirs beneath the North Sea. ... This is a list of oil and gas fields operated by BP. // All fields in British territory are operated as part of the BPs North Sea Strategic Performance Unit from their office in Dyce, Aberdeen. ...

External links

  • BP asset portfolio


 
 

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