…In China, bamboo was used instead of wire rope, and in the 13th century, wells were dug to depths of over 600m. The method of using wire rope is called cable-tool drilling, and the world's first successful oil well, the Drake Well (USA, 1859), was also dug by cable-tool. Cable-tool drilling technology was developed in the US, and in 1925, a 2,365m oil well was dug, but it has now been replaced by rotary drilling. … *Some of the terminology that refers to "cable-tool drilling" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…中国ではワイヤロープの代りに竹が用いられ,13世紀には600m以深まで掘られていた。ワイヤロープを用いる方式は綱掘りcable‐tool drillingと呼ばれるが,世界で初めて石油採取を目的として成功したドレーク井(アメリカ,1859)も綱掘りで掘られた。綱掘技術はアメリカで発達し,1925年には2365mの石油井が掘られたが,現在ではロータリー式掘削に取って代わられている。… ※「cable-tool drilling」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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