Research of Key Technology with Drilling Stem Fixed with Cable in Directional Drilling under Coal Mine
煤矿井下定向钻进通缆钻杆关键技术研究
The measurement while drilling technology in nearly horizontal directional drilling in coal mines
煤矿井下近水平定向钻进中的随钻测量技术
Application of Directional Drilling Technology in Coal-bed Methane Vertical Well Construction
定向钻井技术在煤层气垂直井施工中的应用
Technical Progress of Direct Measurement Method for Coal-seam Gas Content in Our Coal Mines
我国煤矿井下煤层瓦斯含量直接测定法的技术进展
Construction Technology and Equipment for Gas Drainage Borehole Drilling in Underground Coal Mine
煤矿井下瓦斯抽采钻孔施工技术与装备
Reason Analysis and Countermeasures for Undergound Drilling in Coal Mine
煤矿井下施工钻孔偏斜原因分析和对策
The construction craft research of directional note thick liquid water shutoff drill hole in the depletion region
过煤矿采空区定向钻孔施工工艺研究
Research on Measurement-while-drilling Technology in Underground Mine and Data Processing Method of Borehole Trajectory
煤矿井下随钻测量技术及钻孔轨迹数据处理方法研究
Research and application of complete set of technology for directional fracturing to increase coal seam permeability and eliminate coal/gas outbursts in underground coal mines
煤矿井下定向压裂增透消突成套技术研究及应用
Location, tracking and enquiry management for coal mine.
煤矿井下人员的定位、踪、询管理。
Personal Position System Used in Coal Mine Based on RFID;
基于RFID的煤矿井下人员定位系统
Design on personnel tracking system of underground mine based on MapInfo
基于MapInfo的煤矿井下人员定位系统设计
Application of Directional Drilling in CBM Exploration
定向钻进技术在煤层气勘探中的应用
Application of Anti-well Drilling Rig to Main Shaft Coal Bunker Construction in Xinyi Coal Mine
反井钻机在新义煤矿主井煤仓施工中的应用
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
Application of Oil Industry Special Purposed Floating Hoop and Shoe on Coalmine Service Borehole Casing Lowering and Consolidation
石油专用浮箍浮鞋在煤矿服务钻孔下管和固井中的应用
Determine Scheme of Down Carry Extensible Belt Conveyor in Coal Mines
煤矿井下下运可伸缩带式输送机方案的确定
Analysis on the Present Situation and Future Development Direction of Underground Auxiliary Transportation in Coal Mine
浅析煤矿井下辅助运输的现状及未来发展方向