Study on New Drilling Equipment and Screen Pipe Putting Down Technology of Gas Drainage

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GUO Kun-ming

XIAO Li-hui

FENG Da-jun

LI Ke-song

Keywords：new techniquesoft seamborehole completed ratioscreen pipe putting downgas concentration

Publication Date：2014-01-01

Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)

Pages：4( 50-52,55 )

PKUISTIC

ISSN：1671-0959

Year, Vol.(Issue)：2014,46(1)