摘要
孔内沉渣厚时会造成下钻不到底或埋钻事故,严重影响钻探的正常进行。介绍了兰渝铁路工程地质勘察孔深850 m的西秦岭3号孔沉渣处理过程,总结出一些在破碎地层沉渣事故处理的经验和措施,为类似事故提供借鉴。
Thick in-hole sediment affects drilling operation with drilling tool not going down to the hole bottom or drill bury. The paper introduced sediment treatment in the 3# hole of west Qingling with depth of 850m in engineering geological exploration of Lanzhou - Chongqing railway, and summed up some treatment experience and measures in treatment of sediment in broken formation for the similar drilling failure.
出处
《探矿工程（岩土钻掘工程）》
2009年第12期23-25,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
兰渝铁路
工程地质勘察
深孔钻探
沉渣处理
绳索取心钻进
Lanzhou - Chongqing railway
engineering geological exploration
deep hole drilling
sediment treatment
wire-line coring drilling
