1) large-size drill
大型钻头
2) drill jumbo
大型多钻头钻机
3) Micro-drill
微型钻头
1.
The Research on Measurement of Micro-drill Core Dimensions;
微型钻头钻芯尺寸测量的研究
4) drill bit selection
钻头选型
1.
Study on rock mechanics parameters and drill bit selections for Liuhua oilfield in South China Sea.;
流花油田地层岩石力学参数评价及钻头选型技术
5) bit model
钻头型号
1.
Through the comparison and analyses of data collected from recently drilled well in Erdos Work Area, the bit model and drilling parameters of each well section and each district were optimized.
通过对近年来鄂北工区所施工井的钻井资料进行分析、对比,优选出了适合于各区块、各井段的钻头型号和钻井参数,提高了机械钻速,缩短了钻井周期,使鄂北工区的钻井技术上了一个新的台阶,加速了鄂北气田的建设。
6) bit selection
钻头选型
1.
The Application Of Mud Logging Data In Bit Selection;
录井资料在钻头选型中的应用
2.
In model selection, using the modified drill cost in every meter as a standard can efficiently eliminats the effect of non-formation factor to bit selection.
本文介绍应用声波时差进行钻头选型的原理和方法。
补充资料：大型
1.形状或规模大的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条