drilling footage sensor 进尺传感器
drilling footage effect coefficient 进尺效果系数
oil drilling footage 石油钻井进尺
footage drilling contract [油气] 钻井进尺合同
There have three decisive questions need to solve while drilling in sand gravel layer. The first question is drilling footage.
在砂卵石地层中勘察钻探时，要解决三个关键性的问题：一是钻进进尺问题；
Field tests also show that the self-resonating cavitation nozzle is highly effective in reducing bit wear, increasing drilling footage and drilling speed.
现场试验同样证实设计的自振空化射流喷嘴在保护钻头、减少钻头磨损及增加进尺、提高机械钻速方面有显著作用。
A method is proposed to determine the bit footage when the drilling cost per meter reaches a minimum.
本文提出了一种按最低成本原则确定单只钻头进尺的实用方法。
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