Study on Freezing Borehole Drilling Technology of Watery Soft Rock Stratum in West Inner Mongolia and Gansu Longdong Area

Home>Articles>Study on Freezing Borehole Drilling Technology of Watery Soft Rock Stratum in West Inner Mongolia and Gansu Longdong Area

LIU Yi-he

LI Lin

Keywords：west inner mongolia and gansu longdong areafreezing borehole drillingdeviation correctionseam coringpassing through conglomerate

Publication Date：2014-01-01

Pages：3( 40-42 )

PKUISTIC

ISSN：1671-0959

Year, Vol.(Issue)：2014,46(4)