煤炭与化工2024，Vol.47Issue(11)：37-39,97,4.DOI:10.19286/j.cnki.cci.2024.11.009
大口径深井循环通孔技术研究
Research on circulating through hole technology of large diameter deep well
刘钰鑫1
作者信息
- 1. 冀中能源股份公司邢东矿,河北邢台 054001
- 折叠
摘要
Abstract
In view of the problems of difficult drilling and low rock breaking efficiency in the construction process of large-diameter gangue feeding hole in Xingdong Mine,this paper studies the large-diameter circulating drilling technology and analyzes the basic conditions for establishing mud circulation.Based on the inhomogeneity of the existing state of gangue in the hole,the screw is used as the power to be equipped with a self-developed new rotor bit for drilling.Practice has proved that this method can establish a maintenance circulation channel,with good slag discharge effect and high drilling efficiency.It can be popularized and applied to through-hole construction and rapid drilling of large-diameter boreholes after blockage of large-diameter boreholes in coal mines.关键词
大口径钻孔/泥浆循环/旋翼破碎钻头/快速钻进Key words
large diameter drilling/mud circulation/rotor crushing drill bit/fast drilling分类
矿业与冶金引用本文复制引用
刘钰鑫..大口径深井循环通孔技术研究[J].煤炭与化工,2024,47(11):37-39,97,4.
