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打滑地层新型孕镶金刚石钻头
引用本文:罗爱云,段隆臣,王伟雄,田永常.打滑地层新型孕镶金刚石钻头[J].地质科技情报,2007,26(1):109-112.
作者姓名:罗爱云  段隆臣  王伟雄  田永常
作者单位:1. 同济大学波耳固体物理研究所,上海,200092
2. 中国地质大学,武汉,430074
基金项目:中国地质调查局区域地质调查项目
摘    要:在分析打滑地层特点的基础上,指出了钻进该地层所存在的问题,提出了用于打滑地层钻进的新型孕镶金刚石钻头的设计思路,在钻头工作层中采用主、辅两种磨料,并对这两种磨料的工作机理、处理工艺以及该新型钻头的制造进行了阐述.钻头的室内钻进试验结果表明:在钻进极坚硬致密的锆刚玉时,相对于普通金刚石钻头,新型孕镶金刚石钻头的钻进时效提高1.93倍,平均磨损量增加38%,具有高时效、相对寿命长的优点,是打滑地层钻进的理想钻头.

关 键 词:打滑地层  新型孕镶金刚石钻头  主磨料  辅磨料  钻进试验
文章编号:1000-7849(2007)01-0109-04
修稿时间:2006-04-05

New-Type Impregnated Diamond Bit for Drilling Slipping Formation
LUO Ai-yun,DUAN Long-chen,WANG Wei-xiong,TIAN Yong-chang.New-Type Impregnated Diamond Bit for Drilling Slipping Formation[J].Geological Science and Technology Information,2007,26(1):109-112.
Authors:LUO Ai-yun  DUAN Long-chen  WANG Wei-xiong  TIAN Yong-chang
Institution:1. Pohl Institute of Solid States Physics, Tongji University,Shanghai 200092, China; 2. China University of Geosciences, Wuhan 430074, China
Abstract:In this paper,the characteristics of slipping formation are described and the problems in drilling this formation are pointed out. A new design thought is presented to design a new-type impregnated diamond bit for drilling slipping formation with principal abrasive material and assistant abrasive material in the working layer of the bit. The function mechanism and treating technique of both abrasive materials and manufacturing technique of the bit are put forward. The result of the indoor drilling experiments shows that the new-type impregnated diamond bit is a kind of ideal bits for drilling zirconia corundum, with the advantages of high drilling efficiency and long serve life, 1.93 times higher than common diamond bit and the average abrasion, 0.38 times higher than common diamond bit.
Keywords:slipping formation  new-type impregnated diamond bit  principal abrasive material  assistant ab- rasive material  indoor drilling test
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