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Keyword [directional borehole]
Result: 1 - 9 | Page: 1 of 1
1.
The Research On The Drilling Technology And The Gas Discharging Effect Of The Large Diameter Directional Borehole In Coal Mine
2.
Research On Controlled Theory Of Positive Displacement Motor Drilling In Coal Mine For Nearly Horizontal Directional Borehole
3.
Research Of Construction Technology On Large-diameter Directional Borehole In Coal Mining Areas
4.
Study On The Gas Drainage Technique Of SanYuan Coal Mine Roof Kilometer Directional Borehole
5.
Study On Reasonable Horizon Of Grouting Of Horizontal Directional Borehole To Seal Water Flowing Fractured
6.
Study On Direction Hole Drlling Technology And Equipment For Grouting Reinforcement In Coal Floor
7.
Study On Coal Seam Outburst Elimination Technology And Effect Evaluation System Of Surface Hydraulic Fracturing With Large Liquid Volume And Multi Angle Directional Borehole
8.
Research And Application Of Dendritic Group Directional Drilling Technology Of In Seam Long Borehole
9.
Research On Gas Drainage Technology Of Directional Long Borehole Punching Pressure Relief In 5# Coal Seam Of Xiangshan Mine
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