1.
Study on the Propagation Mechanism of the Crack for the Borehole Hydraulic Fracturing in Coal Seam
煤层钻孔水压致裂的裂缝扩展规律研究
2.
Testing study of methane drainage by bore and hydraulic-cutting seam from low permeability coal seam
低渗透煤层钻孔与水力割缝瓦斯排放的实验研究
3.
Application of Triangular Drilling Rod to Gas Drainage Borehole Drilling in Medium Soft Seam
三棱钻杆在中软煤层顺层瓦斯抽排钻孔的应用
4.
Identification of coal block tcxture with core and application
用钻孔煤心鉴别煤层煤体结构及其应用
5.
The Better Chosen of the Field Arrangement of the Drill Hole Pulls Out Putting Drills and the Drill Hole Parameter of the Coal Bed Gas in PanJiang Mining Area;
盘江矿区煤层气钻孔抽放钻场布置及钻孔参数优选
6.
The paper sequentially analyzed the starting-crack mechanism of hydraulic fracture bore which lies in coal delamination or lies between two coal delaminations or through many coal delaminations.
进而论文分析阐述了煤分层中钻孔、分层层面钻孔、以及穿层钻孔水力压裂的起裂机理。
7.
A Study of the Second Hole Sealing Method to Improve Gas Drainage in Coal Seams
煤层瓦斯抽放钻孔的二次封孔方法研究
8.
Study on Rational Borehole Space of Crossed Boreholes for Gas Pre-drainage
预抽煤层瓦斯交叉钻孔合理孔间距的研究
9.
Research of Drilling Equipment and Craft for Soft-extrude Coal Along Level Bed
松软突出煤层顺层钻孔装备及其工艺研究
10.
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
11.
Gas drainage in seam with large auto variable diameter bore holes
自动变径大直径钻孔抽放煤层瓦斯试验
12.
The Applying Values of Metrical Results about Coal Stratum Pressure in Drill;
钻孔中煤层气压力测定结果的实用意义
13.
Fire Prevention Practice on Drilling Holes with Inclined Slices on Fully Mechanized Face Roof of Thick Seams in Junde Colliery
峻德矿特厚煤层综放面顶板下斜钻孔防火实践
14.
Development of ZY-73 Coal Seam Gas Pressure Measuring Instrument
ZY-73型钻孔煤层瓦斯压力测定仪的研制
15.
Numerical Simulation Optimization for Release Pressure Bore Hole of Roadway Floor in Three Soft Coal Seam
三软煤层巷道底板钻孔卸压的数值模拟优化
16.
Practice on Relieving Shot Controlled by Borehole and Increasing Air Permeability Coefficient of Seam
钻孔控制卸压爆破增加煤层透气性系数的实践
17.
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
18.
Effect Forecast for Methane Drainage with Parallel Drilling along Coal Seam
顺煤层平行钻孔瓦斯抽采效果预测方法