Coal Mine Gas Control and Utilization

Chapter 1 Origin of Coal Gas
1．1 Fundamental Concepts of Coal and Coal Gas
1．2 Gas Generation
1．3 Methods for Characterizing the Origin of CBM
1．4 Gas Compositions and Characteristics
1．5 Objectives of Coal Mine Gas Control and Utilization
References

Chapter 2 Coal Porosity and Sorption of Gases
2．1 Coal Porosity
2．2 Gas Occurrence in Coals
2．3 Sorption Isotherms and Desorption Equations
2．4 Methods for Testing Desorption and Desorption Features
2．5 Influencing Factors of Gas Adsorption on Coal
References

Chapter 3 In-Situ Gas Pressure and Content in Coal
3．1 Conceptions of Coalbed Gas Pressure and Content
3．2 Vertical Zonation of Coalbed Gas
3．3 Gas Pressure
3．4 Gas Content
References

Chapter 4 Mechanical Properties and Gas Permeability of Coal
4．1 Coal Mechanical Properties
4．2 Coal Structure and Fracture Geometry
4．3 Matrix Deformation Due to Sorption
4．4 Coal Permeability
References

Chapter 5 Gas Transport in Coal Matrix and Its Emissions
5．1 Gas Transport
5．2 Basic Gas Transport Theories in Coal Seams
5．3 Governing Equations for the Gas Transportation in Coal Seams
5．4 Gas Emission
References

Chapter 6 Gas Disaster in Coal Mines
6．1 Coal and Gas Outburst
6．2 Gas Explosion
References

Chapter 7 Coal and Gas Outburst Prevention and Control
7．1 Classification， Purpose and Indexes of Gas Extraction
7．2 Criteria of Coal and Gas Outburst Coal Seams
7．3 Procedure of Gas Outburst Prevention and Control
7．4 Gas Control for Coal Uncovering During Cross-cut
References

Chapter 8 Gas Explosion Prevention and Control
8．1 Characteristics and Control Factors of Gas Explosion
8．2 Explosion Protection Philosophy and Measurements
8．3 The Countermeasures and Suggestion for Gas Explosion Protection
References

Chapter 9 Evaluation of Coalbed Methane Reservoirs
9．1 Gas Reserve Categories
9．2 Influencing Factors of Gas Preservation
9．3 Calculation Method of Coalbed Methane Resource Quantity
9．4 CBM Reservoir in China and the USA
References

Chapter 10 Pre-drainage Methods for CBM Reservoirs
10．1 What is Pre-drainage Methods．7
10．2 Vertical Well Construction for Pre-drainage
10．3 In-seam Boreholes Drilled Directionally From the Surface and Underground
10．4 Underground-drilled Boreholes With In-seam Boreholes or Crossing Boreholes
References

Chapter 11 Post-and Gob Gas Drainage Methods
11．1 Fundamental Theories of Relieved Gas Drainage
11．2 Vertical and Horizontal Gob Wells-drilled From the Surface
11．3 Underground Cross-measure Boreholes Drainage
11．4 Comprehensive Extraction Technology for Coal Mine Methane
11．5 Conditions and Analysis of Existing Problems of Coal Mine Gas Extraction
References

Chapter 12 Safe and Efficient Simultaneous Extraction of Coal and Gas
12．1 Definition
12．2 Theoretical Basis
12．3 Engineering Methods
12．4 Engineering Applications
References

Chapter 13 Gas Drainage and Related Systems Design and Management
13．1 Basic Requirement of Gas Drainage System
13．2 Gas Gathering and Collection Systems
13．3 Coal Seam Gas Outburst Prevention and Drainage Management
References

Chapter 14 Comprehensive Utilization of Coal Mine Gas
14．1 Purpose of Gas Utilization
14．2 Coalbed Methane Utilization Necessities and Current Situation in China
14．3 Utilization Technologies of CMM
14．4 Gas Utilization in the Luling Coal Mine
References

Chapter 15 Coal Mine Gas Control Cost Analysis and Related Policies for Gas Drainage and Utilization
15．1 Coal Mine Methane Control Cost Analysis
15．2 Relevant Policies on CMM Recovery and Use
15．3 Barriers to CMM Recovery and Beneficial Use
15．4 Policy Recommendations
References