仿生孕镶金刚石钻头高效碎岩机理

仿生孕镶金刚石钻头高效碎岩机理

徐良¹，孙友宏¹，高科²

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

收稿日期:2008-02-25 修回日期:1900-01-01 出版日期:2008-11-26 发布日期:2008-11-26
通讯作者: 徐良

Efficient Rock Fragmentation Mechanism Analysis of Impregnated Diamond Bionics Bit

XU Liang¹，SUN You-hong¹，GAO Ke²

1.College of Construction Engineering， Jilin University，Changchun 130026，China;2.Drilling Institute， Zhongyuan Oil Exploration Bureau， Puyang，Henan 457001，China

Received:2008-02-25 Revised:1900-01-01 Online:2008-11-26 Published:2008-11-26
Contact: XU Liang

摘要/Abstract

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。

关键词: 金刚石钻头, 仿生, 孕镶, 碎岩机理, 非光滑

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.

Key words: diamond bit, bionics, impregnated, rock fragmentation mechanism, non-smooth

中图分类号:

P634.5

徐良，孙友宏，高科. 仿生孕镶金刚石钻头高效碎岩机理[J]. J4, 2008, 38(6): 1015-1019.

XU Liang，SUN You-hong，GAO Ke. Efficient Rock Fragmentation Mechanism Analysis of Impregnated Diamond Bionics Bit[J]. J4, 2008, 38(6): 1015-1019.

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