| 难钻进地层金刚石钻头的现状和发展趋势 |
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| 引用本文： | 蔡家品,贾美玲,沈立娜,欧阳志勇,阮海龙,张建元,赵尔信. 难钻进地层金刚石钻头的现状和发展趋势[J]. 探矿工程(岩土钻掘工程), 2017, 44(1): 67-73,91 |
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| 作者姓名： | 蔡家品 贾美玲 沈立娜 欧阳志勇 阮海龙 张建元 赵尔信 |
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| 作者单位： | 北京探矿工程研究所,中国人民解放军96657部队,四川省地质矿产勘查开发局二〇七地质队,北京探矿工程研究所,北京探矿工程研究所,北京探矿工程研究所 |
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| 基金项目： | 中国地质调查局地质调查项目“重点成矿带碎岩与取心技术研究与应用示范”（编号：12120113097300） |
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| 摘 要： | 介绍了一种NBS高效孕镶金刚石钻头，该类型钻头通过向胎体配方引入一种NBS材料，该材料与胎体结合强度强，晶型锐利，室内微钻试验及野外试验结果显示，该类型钻头可大幅提高钻进中弱风化坚硬岩石的钻进效率，且钻头寿命较以往技术有很大提高。
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| 关 键 词： | NBS；金刚石钻头；高效孕镶钻头；机械钻速；坚硬地层 |
| 收稿时间： | 2016-05-11 |
| 修稿时间： | 2016-07-20 |
Present Situation of Diamond Bit Used in Difficult Drilling Formations and the Development Trend |
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| CAI Jia-pin,JIA Mei-ling,SHEN Li-n,OUYANG Zhi-yong,RUAN Hai-long,ZHANG Jian-yuan and ZHAO Er-xin. Present Situation of Diamond Bit Used in Difficult Drilling Formations and the Development Trend[J]. Exploration Engineering （Rock & Soil Drilling and Tunneling）, 2017, 44(1): 67-73,91 |
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| Authors: | CAI Jia-pin JIA Mei-ling SHEN Li-n OUYANG Zhi-yong RUAN Hai-long ZHANG Jian-yuan ZHAO Er-xin |
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| Affiliation: | Beijing Institute of Exploration Engineering,96657 Unit of PLA,207 Geological Team of Sichuan Bureau of Geology & Mineral Resources,Beijing Institute Of Exploration Engineering,Beijing Institute of Exploration Engineering and Beijing Institute of Exploration Engineering |
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| Abstract: | A high efficiency NBS impregnated bit was introduced in this paper. NBS material was added in the bit matrix, which has a sharp crystal and good bond strength with the matrix. The micro-drilling experiments and the field drilling tests show that this NBS diamond bit can greatly improve ROP in medium-weakly weathered hard rocks drilling and the bit service life is also prolonged compared with ordinary diamond bits. |
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| Keywords: | NBS diamond bit high efficiency impregnated bit rate of penetration (ROP) hard formation |
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