坚硬地层NBS高效孕镶金刚石钻头的研究与应用
投稿时间：2016-07-19  修订日期：2016-07-25  点此下载全文
引用本文：沈立娜,路杙,尹建民,等.坚硬地层NBS高效孕镶金刚石钻头的研究与应用[J].钻探工程,2017,44(1):84-86，92.
SHEN Li-na,LU Yi,YIN Jian-min,et al. Study and Application of High Efficiency NBS Impregnated Bit for Hard Formation[J]. Drilling Engineering, 2017,44(1):84-86，92.
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作者单位E-mail
沈立娜* 北京探矿工程研究所 shenln@bjiee.com.cn 
路杙 中国人民解放军96657部队  
尹建民 四川省地质矿产勘查开发局二〇七地质队  
阮海龙 北京探矿工程研究所  
吴海霞 北京探矿工程研究所  
李春 北京探矿工程研究所  
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）
中文摘要: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。
中文关键词:NBS  金刚石钻头  高效孕镶钻头  机械钻速  坚硬地层
 
Study and Application of High Efficiency NBS Impregnated Bit for Hard Formation
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.
keywords:NBS  diamond bit  high efficiency impregnated bit  rate of penetration (ROP)  hard formation
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