Keyphrases
Dip Angle
100%
Methane Migration
100%
Inclined Coal Seam
100%
Migration Channels
100%
Fractal Characteristics
100%
Methane Extraction
75%
Coal Seam
50%
Coal Mining
50%
Law
25%
China
25%
Borehole
25%
Fractal
25%
Increasing Trends
25%
Effective Model
25%
Extraction Methods
25%
Methane Concentration
25%
Effective Method
25%
Efficiency Improvement
25%
High-level Borehole
25%
Channel Width
25%
Methane Safety
25%
Safety Level
25%
Safety Staff
25%
Coalbed Methane Recovery
25%
Industry Safety
25%
Channel Boundary
25%
Crack Angle
25%
Elliptic Paraboloid Zone
25%
Mine Safety
25%
Efficiency Level
25%
Zone Theory
25%
Evolution Characteristics
25%
Engineering
Methane
100%
Coal Seam
100%
Migration Channel
100%
Dip Angle
57%
Borehole
28%
Coal Mining
28%
Key Parameter
14%
Coal Mine
14%
Application Field
14%
Safety Level
14%
Improve Efficiency
14%
Enhanced Coal Bed Methane Recovery
14%
Extensive Research
14%
Earth and Planetary Sciences
Methane
100%
Coal Seam
100%
Borehole
28%
Coal Mining
28%
China
14%
Coal Mine
14%
Enhanced Coal Bed Methane Recovery
14%
Parabolic Body
14%