Reverse Circulation DTH Hammer Drilling Technique

BO Kun, YIN Kun and PENG Jianming

Global Geology ›› 2011, Vol. 14 ›› Issue (4) : 259-264.

PDF(587 KB)
PDF(587 KB)
Global Geology ›› 2011, Vol. 14 ›› Issue (4) : 259-264.
论文

Reverse Circulation DTH Hammer Drilling Technique

  • BO Kun, YIN Kun and PENG Jianming
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Abstract

The technical characteristics and operational principal of the reverse circulation DTH hammer drilling technology is integrated introduced in this paper. Using simulation technology to assist the drilling tool design, the optimum designed DTH hammer gets stable performance,and the bit has reverse circulation ability,and further more,it has already developed serial products. The reverse circulation DTH hammer drilling technique has been fully applied in field such as the geological core exploration in complex strata,water well drilling,and large diameter rock embedding piles drilling in hard rock,and obviously,it is achieved favorable economic and social benefits.

Key words

Hollow-through DTH hammer / reverse circulation / reverse circulation bit / simulation

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BO Kun, YIN Kun and PENG Jianming. Reverse Circulation DTH Hammer Drilling Technique[J]. Global Geology. 2011, 14(4): 259-264
PDF(587 KB)

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