Application of Down-the-hole Hammer and Tube Drilling Technology in Complicated Strata in Coalbed Methane Well Drilling
ZHANG Yong
HE Yi-fei
LI Min
WANG Yan-feng
YU Ze-jiao
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Publication Date：2019-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 54-56 )