西南石油大学学报(自然科学版) ›› 1997, Vol. 19 ›› Issue (4): 74-79.DOI: 10.3863/j.issn.1000-2634.1997.04.014

• 石油机械工程 • Previous Articles     Next Articles

Energy Delivery and Parameters Selection of Hydro-Hammer Drilling Tool

HUANG Wan-zhi LIN Yuan-hua   

  1. Dept. of Petroleum Engineering, SWPI, Sichuan, 637001
  • Received:1997-03-10 Revised:1900-01-01 Online:1997-11-20 Published:1997-11-20

Abstract: The hydro-hammer bit drilling is an effective method of drilling hard rock. The hydro-hammer exerts impact load on bit and drill string, which does good to rock disintegration. The dynamic mathematical model is established through the detailed theoretical analysis of the operating process of the hydro-hammer, and formulae for calculatin parameters of the hydro-hammer are presented.

Key words: Percussive drilling, Bottomhole assembly, Drilling tool, Energy, Parameter

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