The spiral drill collars are being tried to use.
一套新钻机正在这个井场安装。
They measured the length of drill collars yesterday.
他们昨天仗量了钻杆和钻链的长度。
The drill collars must be made of nonmagnetic material.
钻铤必须是由非磁性物质做成的。
They have not measured the length of spiral drill collars and monel collars yet.
他们还没测量螺旋钻铤和无磁钻铤的长度。
This effect trickled down throughout the drilling industry and affected support equipment such as drill pipes, drill collars, and pump jacks.
这个结果慢慢地浸入到整个钻探行业并且影响到各种辅助设备，如钻管、钻杆和深井泵。
The people pay attention on raising the span of the usage of the thread of drill collars and preventing the accident of drill string thread failure.
预防钻柱螺纹失效事故发生和提高螺纹连接使用寿命的技术长期以来倍受关注。
Measurement-while-drilling (MWD) logging tools, in some cases known as logging-while-drilling (LWD) tools, are drill collars into which the necessary sensors and electronics have been built.
随钻测量测井仪，有时也叫随钻测井仪，是内部装有探测器和电子线路的钻铤。
Measurement-while-drilling (MWD) logging tools, in some cases known as logging-while-drilling (LWD) tools, are drill collars into which the necessary sensors and electronics have been built.
随钻测量测井仪，有时也叫随钻测井仪，是内部装有探测器和电子线路的钻铤。
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