渭北煤田澄合矿区复杂地层钻孔施工技术

〗Application of Sidetrack Drilling Technology in Borehole Accident

摘要:

渭北煤田澄合矿区属典型复杂地层，钻探施工难度大，钻探效率低。通过对钻探施工中的难点进行分析，总结了本地区钻探施工技术经验，针对钻探施工中存在的厚黄土层钻进、钻孔漏失和坍塌、岩石坚硬、粉煤采取等问题，提出了应对的技术措施和钻进施工工艺。

Abstract:

The formation is typical complicated in Chenghe mining area of Weibei, drilling construction is difficult with low drilling efficiency. By the analysis on the difficulties in drilling process, the drilling technical experience was summed up; according to the drilling in thick loess layer, borehole leakage and collapsing, hard rock and pulverized coal taking, the relevant technical measures and drilling technologies were put forward.