| 大口径深孔钻具选用原则及建议 |
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| 引用本文： | 王振志,李艳丽,李晓晖.大口径深孔钻具选用原则及建议[J].探矿工程,2012,39(3):14-18. |
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| 作者姓名： | 王振志 李艳丽 李晓晖 |
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| 作者单位： | 石家庄探矿机械厂,河北石家庄050081 |
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| 摘 要： | 为了适应深孔钻探的需要，减少孔内事故的发生，阐述了深孔钻具的选用原则，对钻铤、钻杆、转换接头、方钻杆的选用方法进行了具体介绍，并就经常遇到的钻柱切口问题、临界钻压和转速问题提出了建议，为施工单位进行合理的钻具选用和组合提供了参考。
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| 关 键 词： | 深孔钻具 钻杆 钻铤 方钻杆 转换接头 |
| 收稿时间： | 2011/10/18 0:00:00 |
| 修稿时间： | 2011/10/18 0:00:00 |
Principle of Drilling Tools Selection for Large Diameter Borehole and the Suggestions |
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| WANG Zhen-zhi,LI Yan-li and LI Xiao-hui.Principle of Drilling Tools Selection for Large Diameter Borehole and the Suggestions[J].Exploration Engineering(Drilling & Tunneling),2012,39(3):14-18. |
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| Authors: | WANG Zhen-zhi LI Yan-li and LI Xiao-hui |
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| Institution: | (Shijiazhuang Exploration Machinery Factory, Shijiazhuang Hebei 050081, China) |
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| Abstract: | The paper discussed the principle of drilling tools selection for deep hole to avoid downhole trouble; introduced the selection of drill collar, drill pipe, conversion joint and kelly; and put forward the reference suggestions to frequently encountered milling keyway in drill string, critical drilling pressure and rotating speed. |
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| Keywords: | deep hole drill tool drill pipe drill collar kelly conversion joint |
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