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The Buchan oil field is a small oil field with small gas reserves〔Operational Performance of the Buchan Field Floating Production and Offshore Loading System, Mieras, A.A. SPE 12433, 1984. DOI 10.2118/12433-MS〕 in the central North Sea. It lies in an area known as the South Halibut Basin, approximately northeast of Aberdeen, Scotland, and is located mainly in license block 21/1A, extending into block 20/5A(E). The field was discovered in August 1974, two years after the issue date for those blocks. Buchan was initially considered a very risky field, both commercially and operationally, and was expected to be finished with after five years. The field's geology created significant difficulties at the start of its development, but the development of new drilling and extraction technology has made possible a continuing increase in its recoverable reserves. It is thought that Buchan will continue to play an important part in the North Sea and that further technological breakthroughs will allow continued production of this field to at least 2018. ==Exploration== As the initial licence block holder, Transworld Petroleum (UK) with Texaco made the first well into the field in Aug 1974. In the next two years a further three appraisal wells were drilled in the area. However this proved to be very difficult area to extract from: tests revealed an extremely complex and fractured field, and two of the appraisal drills were eventually lost. BP was then farmed in to become the operator of the field in 1977. Buchan was initial described as a “small field of uncertain reserve potential” (Hill 1979). Early estimates were for reserves of approximately of oil. Some estimates though suggested upwards of of oil might be extractable depending on further capital expenditure and the ability of the reservoir. Production of the field began in May 1981 and reached peak production capacity in May 1983, when the field was producing . Further fields have been discovered in the Buchan field area. The Buchan North Satellite field was discovered shortly after the main field. The nearby Hannay Field, discovered in 1996, is tied back to the Buchan Alpha rig. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Buchan Oil Field」の詳細全文を読む スポンサード リンク
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