Optimal Allocation of Bottom Hole Assembly Using in the Construction of Coal Seam Directional Long Drilling张占存1-3,7
The Influences of Stereo Obstacles on Gas Explosion Characteristics in Horizontal Pipe丁小勇, 谭迎新, 李媛4-7
Test of Coal Bed Gas Ground Well Extraction Technology in Mining Subsidence Area of Jincheng Mining Area李日富, 文光才, 司鹄11-13
Study on Deflagration Control Methods of Low Concentration Gas Extraction in Tube王莹, 宋正昶, 马龙信, 倪硕硕, 王思文18-22
Floor Heave Mechanism and Control Technique on Semi- coal and Semi- rock Roadway Under the Influence of Tectonic Stress刘珂铭, 张勇, 许力峰, 张江利, 李艳君, 杨维帅23-25
The Influence of Extremely Thick Key Layer on Pressure - relief Effect of Remote Lower Protective Seam Mining徐超, 程远平, 王亮, 刘清泉, 蔡春城26-29
