煤矿瓦斯抽排井施工钻孔与巷道串通的治理及成井技术

Treatment of Borehole and Roadway Holing for Coalmine Gas Discharging Well Construction and the Completion Technology

摘要:

介绍了煤矿大直径瓦斯抽排井钻孔施工过程中，施工钻孔与巷道串通事故的处理，以及扩孔钻进成孔、漂浮法安放井管、壁后充填水泥浆固井止水等工艺技术。

Abstract:

The paper introduced the treatment of borehole and roadway holing in the construction process of large diameter coalmine gas discharging well; and also introduced reaming drilling for hole completion, floating settlement for well casting and wallback cementbackfilling for water shutoff and wall cementation.