2) vibration and swirling
钻柱振动与涡动
3) bit whirl
钻头涡动
1.
In order to drill hard formations effciently and economically, the identification and elimination of bit whirl motion become more and more important in drilling fields.
为了更有效和更经济地将ＰＤＣ钻头应用于坚硬地层的钻井，钻头涡动的识别及消除越来越受到人们的重视。
5) drill string vibration
钻柱振动
1.
The Acquisition System For Drill String Vibration Signals And The Spectrum Analysis;
钻柱振动信号采集系统及谱分析
2.
By means of analyzing the signal of drill string vibration while drilling,the characteristic frequency information of current formation and working condition of drill tool is obtained.
在钻井过程中 ,通过对钻柱振动信号分析 ,获取当前地层以及钻具的工作状态的特征频
6) drill string vibration
钻柱震动
补充资料：钻动
1.攒动﹐相聚而动。
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