Application of Long Distance High Level Boreholes of Fractured Zone in High Gas Mine
ZHANG Li-jun
WANG Zhi-hao
Keywords:VLD-1000 directional drilling machinegas drainagegoafhigh level fracture boreholes
Publication Date:2015-01-01
Online Publishing Date:2025-08-15(First online date of this platform, not the publication date of the document)
Pages:4( 55-57,60 )
Coal Engineering

Coal Engineering

PKUISTIC
ISSN:1671-0959
Year, Vol.(Issue):2015,47(5)