• 书名：Theory and Technology of Gas Injection Displacement for Promoting Gas Drainage in Coal Mines

• ISBN：978-7-5240-0469-1

• 出版社：冶金工业出版社有限公司

• 定价：80

• 作者：杨鑫,王辉,谭菲艳

• 出版时间：2026-02-27

内容简介

全书共分5章，主要内容包括：煤对一元气体的吸附-解吸扩散实验研究，揭示压力与气体种类对扩散规律的影响；注气驱替过程中气体双向扩散规律的实验与数值解法研究，分析注入气体与煤层瓦斯的相互作用；基于COMSOL Multiphysics的数值模拟，优化注气参数以提升驱替效率；以及井下高压注氮驱替的工程试验，验证技术的可行性与应用价值。

编辑推荐

本书理论与实践并重，适合矿业工程、安全工程等领域的研究人员、工程技术人员及高校师生参考，为煤矿瓦斯治理提供科学依据和技术支持。

目录

1 Adsorption-Desorption and Diffusion Characteristics of Methane in Coal

1.1 Mathematical Models of Gas Diffusion

1.2 Methane Diffusion Experiments

1.3 Applicability Analysis of Diffusion Models

1.4 Influence of Pressure on Methane Diffusion

1.5 Impact of Pore Structure on Methane Diffusion

2 Bidirectional Diffusion Characteristics of Gas Displacement in Coal Seams

2.1 Experimental Platform for Bidirectional Gas Diffusion

2.1.1 Experimental Setup

2.1.2 Experimental Procedure

2.1.3 Experimental Design

2.2 Unidirectional Diffusion Experiments for Methane and Carbon Dioxide

2.3 Bidirectional Diffusion Experiments for Nitrogen Displacing Carbon Dioxide

2.4 Bidirectional Diffusion Experiments for Nitrogen Displacing Methane

2.5 Applicability Analysis of Analytical Solutions for Diffusion Models

3 Numerical Solutions for Gas Diffusion in Coal Particles

3.1 Proposal of Numerical Solutions for Diffusion Models

3.2 Numerical Solutions for Diffusion Models

3.2.1 COMSOL Multiphysics Numerical Simulation Software

3.2.2 Unidirectional Diffusion of Carbon Dioxide and Methane

3.2.3 Bidirectional Diffusion of Nitrogen Displacing Carbon Dioxide and Methane

3.2.4 Comparative Analysis of Unidirectional and Bidirectional Diffusion

4 Numerical Simulation of Gas Displacement in Coal Seams

4.1 Mathematical Model of Gas Displacement in Coal Seams

4.2 Numerical Simulation of Nitrogen Displacement in Coal Seams

4.2.1 Geometric Model and Simulation Conditions

4.2.2 Numerical Simulation Results

5 Engineering Trials of Underground Gas Displacement in Coal Seams

5.1 Field Trials in Xinmi Coalfield, Henan

5.1.1 Overview of Test Sites

5.1.2 Constant-Pressure Nitrogen Injection at No. 12 Drilling Site

5.1.3 Constant-Pressure Nitrogen Injection at No. 14 Drilling Site

5.1.4 Variable-Pressure Nitrogen Injection in Roadways

5.2 Field Trials in Huainan Coalfield, Anhui

5.2.1 Overview of Test Sites

5.2.2 Test System and Plan

5.2.3 Nitrogen Injection Trials in Working Faces

5.3 Field Trials in Hedong Coalfield, Shanxi

5.3.1 Overview of Test Sites

5.3.2 Test System and Plan

5.3.3 Preliminary Trials of Intermittent and Continuous Nitrogen Injection

5.3.4 Local Trials of Continuous Nitrogen Injection

5.4 Mechanistic Discussion on Gas Displacement in Coal Seams