地质与勘探2012，Vol.48Issue(2)：374-378,5.
几内亚某超大型铝土矿含水地层钻探取样技术
Sampling Technique of Drilling in Aquiferous Strata at a Super-Large Bauxite Deposit in Guinea
摘要
Abstract
Geological characteristics of the drilled aquiferous strata at a super-large Guinean bauxite deposit were investigated to address the sampling problems encountered during the drilling process. The aquiferous strata of this area can be classified into three categories, based on which, two different sampling devices were developed and tested,i, e. ,spiral drilling tool with ring quard and drilling tool of anti-suction with switchable mouth downside. The site tests indicate that the spiral drilling tool with ring quard is fit for the boreholes with the first category of geological features ,while the drilling tool of anti -suction with switchable mouth downside is fit for the boreholes with the second and third category of geological features. These drilling tools have tackled difficulties in sampling of such strata in this deposit area.关键词
钻探取样/含水地层/铝土矿/几内亚Key words
sampling in drilling/aquiferous strata/bauxite deposit/Guinea分类
天文与地球科学引用本文复制引用
李旭庆..几内亚某超大型铝土矿含水地层钻探取样技术[J].地质与勘探,2012,48(2):374-378,5.基金项目
中国电力投资集团公司铝土矿勘探项目（编号：CPG-GN-20090301、CPG-GN-20090305）资助. （）
