李士民, 郭克勤. 双壁钻杆反循环潜孔锤钻进研究[J]. 煤田地质与勘探, 1991, 19(2): 56-58,71,72.
引用本文: 李士民, 郭克勤. 双壁钻杆反循环潜孔锤钻进研究[J]. 煤田地质与勘探, 1991, 19(2): 56-58,71,72.
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LI Shi-min, GUO Ke-qin. THE RESEARCH OF REVERSE CIRCULATION DOWNHOLE DRILLING WITH DOUBLE-TUBE ROD[J]. COAL GEOLOGY & EXPLORATION, 1991, 19(2): 56-58,71,72.
Citation: LI Shi-min, GUO Ke-qin. THE RESEARCH OF REVERSE CIRCULATION DOWNHOLE DRILLING WITH DOUBLE-TUBE ROD[J]. COAL GEOLOGY & EXPLORATION, 1991, 19(2): 56-58,71,72.
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双壁钻杆反循环潜孔锤钻进研究

THE RESEARCH OF REVERSE CIRCULATION DOWNHOLE DRILLING WITH DOUBLE-TUBE ROD

    摘要
  • 摘要: 介绍了能适应煤田地质勘探的双壁钻杆和其他配套器具,以及反循环潜孔锤钻进在煤田中的试验效果。

     

    Abstract: In this paper, the authors described the self-de-signed double-tube rod and other necessary accessories available to coal geological exploration for the field working team, and showed the testing results of the reverse circulation downhole drilling in coalfields.

     

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