| 坚硬致密岩层钻进用热压金刚石钻头的研究 |
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| 引用本文： | 周红心.坚硬致密岩层钻进用热压金刚石钻头的研究[J].探矿工程,2007,34(4):51-53. |
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| 作者姓名： | 周红心 |
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| 作者单位： | [1]武汉金地探矿机械有限公司,湖北武汉430081 |
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| 基金项目： | 中国冶金地质总局中南局科研项目“高效孕镶金刚石钻头研究” |
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| 摘 要： | 针对坚硬致密岩石钻进中遇到的钻头打滑、钻进效率低的问题，通过改变弱包镶材料，加入强化的石墨颗粒，进行试验与研究，获得了颗粒状石墨能提高金刚石出刃的初步效果。随后对石墨颗粒的粒度和强化程度进行反复试验，得到石墨颗粒的粒度、含量和强化程度对金刚石出刃的影响关系；在此基础上研制成新型的热压金刚石钻头，生产试验表明能明显提高金刚石钻头的出刃效果，达到了提高钻进效果的目的。
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| 关 键 词： | 坚硬致密岩石 热压金刚石钻头 颗粒状石墨 金刚石出刃 |
| 收稿时间： | 2007/3/10 0:00:00 |
| 修稿时间： | 2007/3/10 0:00:00 |
Research on Hot-pressing Diamond Bits for Drilling in Hard and Compact Rocks |
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| ZHOU Hong-xin.Research on Hot-pressing Diamond Bits for Drilling in Hard and Compact Rocks[J].Exploration Engineering(Drilling & Tunneling),2007,34(4):51-53. |
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| Authors: | ZHOU Hong-xin |
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| Institution: | ZHOU Hong-xin (Jindi Exploration Machinery Limited Company, Wuhan Hubei 430081, China) |
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| Abstract: | The most difficult problem of drilling in hard and compact rocks is that drilling efficiency is very low. In this case, a new type of hot-pressing diamond bit was developed. By changing weakly-bonded materials and adding strengthened granular graphite to bit matrix, the diamond exposure of bit was improved. Based on the tests, the relation between diamond exposure and graphite size, graphite content in matrix and strengthening degree were obtained. Field drilling results showed higher diamond exposure; penetration rate was 1.2m/h; service life exceeded 20m. |
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| Keywords: | hard and compact rock hot-pressing diamond bit granular graphite diamond exposure |
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