煤矿安全2024，Vol.55Issue(8)：234-241,8.DOI:10.13347/j.cnki.mkaq.20241134
煤矿超600m垂直输料井快速钻井工艺及其关键技术
Rapid drilling technology and key techniques for vertical material conveying wells over 600 m in coal mines
摘要
Abstract
With the increase of coal mining amount and continuous mining area,there are many problems in the auxiliary transporta-tion system in coal mine,such as many transport links,long round trip time,reduced auxiliary transportation capacity and low com-prehensive efficiency.The auxiliary transportation capacity of coal mine can be improved by adding vertical delivery wells.Take the construction of vertical delivery well over 600 m in Wangpo Coal Mine in Shanxi Province as the background,the feasibility of drilling technology and equipment such as geological drilling,oil drilling,pneumatic drilling hammer drilling,vertical drilling and raise-boring machine are demonstrated.In view of the favorable conditions of the production system formed in the lower part of the proposed vertical delivery well,the scheme of constructing a vertical delivery well with a depth of 617 m and a diameter of 1 m by using a reverse drilling machine is determined.According to the formation condition of vertical delivery well and the engineering characteristics of large depth and small diameter,the deviation control method of pilot hole drilling,the selection basis of reaming drilling raise-boring machine,the control method of reaming drilling parameters while drilling and the drilling safety guarantee measures are given.The engineering field application has been completed.关键词
井筒构建/钻井工艺/反井钻机/机械破岩/辅助运输/扩孔钻进/偏斜率控制Key words
construction of wellbore/drilling technology/raise-boring machine/mechanical cutting/auxiliary transport/reaming drilling/deviating rate control分类
矿业与冶金引用本文复制引用
赵会波,汤正..煤矿超600m垂直输料井快速钻井工艺及其关键技术[J].煤矿安全,2024,55(8):234-241,8.基金项目
天地科技股份有限公司创新创业资金重点资助项目(2021-2-TD-ZD006) （2021-2-TD-ZD006）
