长白矿区复杂地层多金属矿深孔施工技术  

Deep Hole Construction Technology for Polymetallic Mine in Complex Formation of Changbai Mine Area

作　　者：张元清[1] 宋健[1] 

机构地区：[1]吉林省第五地质调查所,吉林九台130500

出　　处：《探矿工程（岩土钻掘工程）》2010年第12期13-16,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：长白多金属矿区地层复杂,深孔钻探难度极大,采用先进的钻孔结构以及采用绳索取心钻进,利用同径绳索取心钻杆做技术套管,同时选用PAB高性能无固相冲洗液和选择高端广谱钻头的钻探技术,成功完成了一个孔深1505.88 m的钻孔,创造了吉林省地矿局钻探深孔记录。着重介绍了该孔钻探施工技术措施。Because of the complex formations,deep hole drilling is very difficult in Changbai polymetallic mine area.The advanced borehole structure and wire-line coring drilling were adopted;with wire-line coring pipe of the same diameter as the intermediate casing;high performance PAB solid-free flushing fluid and the drilling technology with high-level broad spectrum bit were selected.A borehole of 1505.88 m depth was fulfilled,which became the drilling depth record of Jilin Geology and Mineral Surveying and Exploring Bureau.The paper emphatically introduced the construction technology of this borehole drilling.

关 键 词：多金属矿 复杂地层 深孔钻探 绳索取心 PAB无固相冲洗液 高端广谱钻头 

分 类 号：P634[天文地球—地质矿产勘探]