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Keyword [Extraction radius]
Result: 1 - 20 | Page: 1 of 2
1. Research On The Absorption Characteristics Of Different Destroyed-Type Coal In JiaoZuo Coal Ming Area
2. Drilling Gas And Extraction By Floor Wearing Layer In ZhangJi Coal
3. Research On Timing Characteristics Of The Extracting Influence Radius Of The Pre-pumping Gas Drilling Hole
4. The Numerical Simulation Research For The Parameters Of Pre-pumping Coal Seam Gas In Hebi Third Mine
5. Research On The Deformation And Seepage Law Of Borehole Wall And Drilling Parameters Optimization
6. Study On Gas Extraction Technology Of Cis Layer Drilling In 11-2 Coal Seam Of Pan San Mine
7. Study On Reasonable Level Layout Of High Drainage Roadway And Drilling Gas Extraction Technology In Changcun Mine
8. Optimization Of Gas Drainage Process And Research On CO2 Enhanced Coal Seam Technology In Baode Coal Mine
9. Analysis On Gas Drainage Effect Of Comb Borehole Directional Drilling In Xuehu Coal Mine
10. Study On Fracture Propagation Rule And Technical Measures Of Coal Seam Which Has High Dip Angle
11. Research On Gas Emission Law And Extraction Mechanism Of Long-distance Directional Drilling
12. Study Of Optimum Drilling Parameters In Low Permeability Coal Seam Based On CO2 Phase Transition Fracturing Technology
13. Research On CO2 Fracturing Enhanced Gas Pre-drainage Technology For Drilling Along Bedding In Low-permeability Outburst Coal Seams
14. Study On Hydraulic Punching And Enhanced Extraction Technology Of Drilling Through Outburst Coal Seam
15. Research And Development Of Coal Seam Gas Drainage Radius Measurement And Analysis System
16. Research On Pressure Relief Range Of Cross-Bed Hydraulic Punching In No.8 Coal Mine Of Hemei Coal Mine
17. Study On Synergistic Effect Of Bedding Hole High Pressure Water Jet Cavitating On Gas Drainage
18. Study On Stratiform Pressure Relief And Permeability Enhancement Effect Of Water Jet In Coal Seam And Its Application
19. Research On The Evolution Of Fracture Around Borehole And Time-varying Rule Of Extraction Radius Under CO2 Gas Fracturing Condition
20. Study On Gas Adsorption/Desorption Deformation And Seepage Characteristics Of Coal Under The Effect Of Water
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