巨厚黄土塬矿区井筒检查孔施工技术  

Research on Key Technology in Construction of Monitoring Shaft Hole in the Loess Plateau Area

作　　者：朱涛 

机构地区：[1]甘肃能源庆阳煤电有限责任公司,甘肃庆阳745000

出　　处：《煤矿现代化》2015年第2期6-8,共3页Coal Mine Modernization

摘　　要：本文详细分析了九龙川煤矿三个井筒检查孔在岩芯采取、钻孔防偏斜、抽水试验、物理测井和钻孔封孔等钻探施工技术,并针对井筒检查孔施工过程中的主要环节严格把控,制定出有效的技术保障措施和提高钻孔岩芯采取率的措施,最终顺利完成本次井筒检查孔施工任务。This paper has made a detailed analysis of adoption of the drilling technology of three monitoring shaft holes in Jiulongchuan coal mine, Which include core recovery, borehole deviation control, pumping test, natural gamma logging（GR） and borehole sealing, etc. the key links are strictly controlled in construction process of the monitoring shaft holes. It works out some effective measures to provide technical guarantee and improve core recovery. Finally this construction task of the monitoring shaft holes is accomplished successfully.

关 键 词：井筒检查孔 技术要求 施工方案 保障措施 岩芯采取率 

分 类 号：TD262[矿业工程—矿井建设]