fourbleとは 意味・読み方・使い方

名詞

fourble (複数形 fourbles)

1. A set of oil drilling pipes having four joints.
   • 1924, Roy Cross, A Handbook of Petroleum, Asphalt and Natural Gas: Methods of Analysis, Specifications, Properties, Refining Processes, Statistics, Tables and Bibliography:

     Derricks are being made slightly higher, the Chanslor-Canfield Midway Oil Co. making all its derricks 122 feet instead of 114 feet as hitherto; this gives greater head room for extra long "fourbles", and is an advantage.