…In 1957, an oil field was discovered in the vicinity of Villahermosa, the capital of Tabasco state in southern Mexico, with a layer of Miocene sandstone from the Tertiary period. Later, with the advancement of drilling technology, deep drilling began in 1971, and the following year, two exploratory wells successfully discovered a layer of Cretaceous (partly Jurassic) limestone oil. The collective name for the 25 oil fields producing from this layer is the Reforma oil field, a super-giant group of oil fields with an oil production area of 70 km x 100 km. The ultimate recoverable reserves of the Reforma oil field are not very accurate, but are estimated to be more than 7 billion barrels. … *Some of the terminology used in reference to "Cactus Oil Field" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…メキシコ南部,タバスコ州の州都ビジャエルモサ周辺では,1957年に第三紀中新世砂岩を油層とする油田が発見された。その後,掘削技術の進歩により71年に着手された深掘りの結果,その翌年に2試掘井において白亜系(一部ジュラ系)の石灰岩油層の発見に成功した。この層から生産している25油田の総称がレフォルマ油田で,70km×100kmの産油面積をもつ超巨大油田群である。レフォルマ油田の究極可採埋蔵量はあまり正確ではないが,70億バレル以上と推定される。… ※「カクタス油田」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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