空气反循环连续取样施工中卡钻事故的预防与处理

Prevention and Treatment of String Sticking Accidents in Air Reverse Circulation Continuous Sampling

摘要:

利用空气反循环连续取样钻进技术，在露天矿山进行生产勘探施工，对所遇到的卡钻问题进行原因分析，确定了相应的操作规程，以便预防卡钻事故的发生，并通过施工辅助孔和套铣技术，在处理卡钻事故方面取得了很好的效果。

Abstract:

Air reverse circulation continuous sampling drilling technology is used for the exploration construction in open-pit mine. The causes of string sticking encountered in drilling is analyzed and the corresponding operation rules are determined in order to prevent sticking accident and by the construted auxiliary holes and milling technology, good results are achieved in sticking accident treatment.