| 人造金刚石孕镶钻头唇面状态与钻进的关系 |
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| 引用本文： | 罗超,李世忠,李砚藻,刘宝林.人造金刚石孕镶钻头唇面状态与钻进的关系[J].地球科学,1994,3(6). |
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| 作者姓名： | 罗超 李世忠 李砚藻 刘宝林 |
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| 作者单位： | 中国地质大学探矿工程系 北京100083 |
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| 摘 要： | 本文以金刚石在孕镶钻头中均匀分布为基础,从理论上推导出唇面径向不同位置的金刚石切深、受力。结果表明,在正常钻进情况下,金刚石切深约为其出刃的1/10,且距钻头中心越近,金刚石切深、受力越大;并由此解释了实钻较微钻钻进能力更强以及随着钻压（p）、每转进尺（h）的增大,碎岩效果,即单位钻压每转进尺（h/p）下降的现象。
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| 关 键 词： | 金刚石 出刃 切深 受力 每转进尺 |
Relationship Between Crown Condition of Synthetic Diamond Impregnated Bit and Drilling |
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| Luo Chao,Li Shizhong,Li Yanzao,Liu Baolin.Relationship Between Crown Condition of Synthetic Diamond Impregnated Bit and Drilling[J].Earth Science-Journal of China University of Geosciences,1994,3(6). |
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| Authors: | Luo Chao Li Shizhong Li Yanzao Liu Baolin |
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| Abstract: | On the basis of that the diamonds distribute in the impregnated bit homogeneously, the ar-ticle calculates the cutting depth and the normal force on the protrusion diamond on the crown. The results show that under the condition of normal drilling the cutting depth is about1/10 of the diamond protrusion. And the closer the distance between the bit center and the diamond, the deeper the diamond cuts and the higher force the diamond stands. In the meantime, these results can be used to explain the phenomenon that the real-bit has more powerful drilling ability than the micro-bit, and the rock fragmentation effect decreases with the increase of bit pressure of penetration per revolution. |
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| Keywords: | diamond protrusion cutting depth foroe on diamond penetration per revlu-tion |
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