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Efficient Rock Fragmentation Mechanism Analysis of Impregnated Diamond Bionics Bit

XU Liang1，SUN You-hong1，GAO Ke2   

  1. 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

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

CLC Number: 

  • P634.5
[1] Ma Yinlong, Zhang Shiyu, Zhou Fujun, Sun Zhigang, Ren Jie. Impregnated Diamond Bit Optimal Design and Application in GanQing Tunnel [J]. Journal of Jilin University(Earth Science Edition), 2023, 53(6): 1845-1853.
[2] Wang Chuanliu, Li Jianjun, Sun Rongjun. Development of High Matrix Drill Bit with Impregnated Diamond Block [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(4): 1276-1281.
[3] WANG Chuan-liu, SUN You-hong, GAO Ke, FAN Li-ming. Experimental Study on Bionic Nozzle of Diamond Bit [J]. J4, 2010, 40(3): 694-698.
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