HC型环状组合式潜孔锤及取心方法试验研究  

Trial of and Research on Down Hole Hammers Patterned in HC Annulus and Their Coring Methods

作　　者：蒋荣庆[1] 殷琨[1] 王茂森[1] 彭枧明[1] 

机构地区：[1]吉林大学建设工程学院,吉林长春130026

出　　处：《探矿工程》2003年第3期26-29,共4页Exploration Engineering(Drilling & Tunneling)

摘　　要：在分析硬岩地层中采用潜孔锤钻进基础上,重点从多头潜孔锤组合形式,对比了环状取心或全断面破碎孔底过程,并对大直径硬岩取心方法和HC型环状潜孔锤取心实钻试验作了简要介绍。The broken processes of borehole bottom rocks under annulus coring or full face drilling, while various arranging patterns of multipieces down hole hammers are used, are compared based on the analyses of drilling in hard rocks by down hole hammers. The larger diameter coring method and the case study of coring by down hole hammers patterned in HC annulus are also introduced.

关 键 词：大直径 多头组合式潜孔锤 聚能爆破 环状取心 

分 类 号：P634.56[天文地球—地质矿产勘探]