| 仿生孕镶金刚石钻头高效碎岩机理 |
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| 引用本文： | 徐良,孙友宏,高科.仿生孕镶金刚石钻头高效碎岩机理[J].吉林大学学报(地球科学版),2008,38(6). |
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| 作者姓名： | 徐良 孙友宏 高科 |
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| 作者单位： | 1. 吉林大学建设工程学院,长春,130026
2. 中原石油勘探局钻井研究院,河南濮阳,457001 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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| 摘 要： | 将仿生学的非光滑原理应用到孕镶金刚石钻头的设计中,研制出新型的仿生孕镶金刚石钻头,比普通金刚石钻头钻进时效提高了30%~80%。仿生钻头破碎岩石后岩粉的颗粒比普通钻头破碎的岩粉颗粒大,可节省能量消耗,提高破碎效率;仿生非光滑表面使得钻头唇面的比压增加,有利于钻头的锐化,从而提高了时效;另外非光滑表面改善了钻头和岩石的冷却条件,因此提高了金刚石钻头的钻进效率。
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| 关 键 词： | 金刚石钻头 仿生 孕镶 碎岩机理 非光滑 |
Efficient Rock Fragmentation Mechanism Analysis of Impregnated Diamond Bionics Bit |
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| XU Liang,SUN You-hong,GAO Ke.Efficient Rock Fragmentation Mechanism Analysis of Impregnated Diamond Bionics Bit[J].Journal of Jilin Unviersity:Earth Science Edition,2008,38(6). |
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| Authors: | XU Liang SUN You-hong GAO Ke |
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| Abstract: | A new type of impregnated diamond bionics bit is developed by applying the bionics non-smooth theory to the bit design.Its drilling efficiency increases 30% to 80% compared with the ordinary bits.The size of rock dust particles crushed by bionics bits is larger than that broken by ordinary bits.The bionic non-smooth surface increases the specific pressure of the bit's crown and also ameliorates the cooling conditions between the bit and rock.So it improves the drilling efficiency of diamond bits. |
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| Keywords: | diamond bit bionics impregnated rock fragmentation mechanism non-smooth |
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