1.
Influencing factors to extraction efficiency of surface goaf hole
地面钻孔抽采采空区瓦斯效率影响因素
2.
Study on Technology of Surface Drillings Draining Pressure Relief Gas of Coal Seam by Protected;
地面钻孔抽采被保护层卸压瓦斯技术研究
3.
Study on the Law of Movement and Distribution of Gas in Semi-enclosed Goaf on the Condition of Surface Hole Drainage;
地面钻孔抽采条件下半封闭采空区瓦斯运移及分布规律研究
4.
Study on the Law of Movement and Distribution of Gas in Goaf on the Condition of Surface Hole Drainage
地面钻孔抽采条件下采空区瓦斯运移及分布规律研究
5.
Gas Drainage Technology of Goaf with Boreholes from Surface Ground of Tangshan Mine
唐山矿地面钻孔抽放采空区瓦斯技术
6.
Application of Large-diameter Borehole in the Process of Gas Comprehensive Management in Coal Face
大直径抽采钻孔在采面瓦斯综合治理中的应用
7.
Analysis on Mining Released Gas Sources for Surface Borehole Drilling and Gas Drainage
地面钻井抽采采动卸压瓦斯来源分析
8.
Application of Gas Extraction Technology by High-level Fracture Borehole in Fully Mechanized Caving Face of Thick Coal Seam
高位裂隙钻孔抽采技术在厚煤层综放面的应用
9.
Gas Drainage by Boring Near Seam at 43001 Coal Face
43001采煤工作面上邻近层穿层钻孔瓦斯抽放
10.
Analysis of Surface Shaft Drilling Goaf Gas Extraction at Tunliu Mine
屯留煤矿地面钻井采空区瓦斯抽采分析研究
11.
The Study on the Key Gas Drainage Technique by Long & large Diameter Roof Boreholes in Fully Mechanized Face
综采面顶板走向大直径长钻孔瓦斯抽采技术参数的研究
12.
L-surface Gas Drainage Drilling and Extraction Equipment Optimization of Pipeline System
地面“L”型钻井瓦斯抽采设备与抽采管路系统优化探讨
13.
Applying Technology of High Drilling Drainage to Preventing Gas Accumulation at Upper Corner of Full-mechanized Mining Face
利用高位钻孔抽放技术治理综采工作面上隅角瓦斯积聚
14.
Study and practice of hybrid coal bed gas drainage by surface drilling
地面钻井式抽采混合煤层气研究与实践
15.
Key rock strata effecting analysis on surface borehole shear deformation fracture
地面抽采钻井剪切变形破坏的关键层影响效应
16.
Discussion on Surface Wells Extraction Project for Coal and Coalbed Methane Co-production in Fuxin Wulong Coal Mine
阜新五龙矿地面钻井抽采联动方案探讨
17.
Technology of 1000 meter directional borehole at large diameter for mine gas extraction
顶板大直径千米长钻孔抽采瓦斯技术
18.
Research on Maximize Technology of Extraction Mining with Drilling Through Coal Seam in Protective Coal Seam
保护层开采穿层钻孔抽采最大化技术研究