贯通式潜孔锤反循环连续取芯技术的试验研究

Experimental Research on Run-through DTH Counter-Circulation Drilling Technique

根据复杂条件下钻进的技术特点 ,对贯通式潜孔锤反循环连续取芯 (样 )钻进技术在破碎地层中的卡堵现象进行了室内模拟试验 ,并对结果进行了分析。

Based on the technical characteristics of drilling under complex conditions, simulation is done of the experimental in-door circumstances of blocking while run-through DTH counter-circulation drilling technique is applied in fragmental strata. The results are also analyzed.