It is concluded through the testing that the process provides high penetration rate, deeper depth and explosive installation without tripping drilling tools;and its application is of good prospect.

 
  • 通過(guò)試驗應用得出結論,該工藝方法具有鉆進(jìn)速度快、成孔深度深、有效實(shí)現不提鉆下炸藥等優(yōu)點(diǎn),具有良好的應用前景。
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