Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO<sub>2</sub> Injection

夏德宏; 张世强

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Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO₂ Injection

更新时间：2026-01-19

- Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO₂ Injection
- Issue 1, Pages: 7-10(2008)
- 作者机构：
  
  北京科技大学热能工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD845
- Published：2008
- 稿件说明：
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[1]夏德宏,张世强.注CO_2开采煤层气的增产机理及效果研究[J].江西能源,2008(01):7-10.

夏德宏, 张世强. Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO₂ Injection[J]. 2008, (1): 7-10.
[1]夏德宏,张世强.注CO_2开采煤层气的增产机理及效果研究[J].江西能源,2008(01):7-10. DOI：

夏德宏, 张世强. Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO₂ Injection[J]. 2008, (1): 7-10. DOI：

摘要

煤层气的开采对我国能源的可持续发展战略具有重要意义。基于对煤层气与煤之间相互作用及其运移过程的分析

得出煤层气开采的关键在于提高煤层内压力梯度和增强煤层气的解吸。注CO2在这两方面都对煤层气的开采具有增产作用。通过与自然降压开采相比较

得到了煤层气回收量增量和回收率增量的计算公式。定义了煤层甲烷回收增长比的概念

从而便于对注CO2开采煤层气的增产效果进行合理评价。

Abstract

Coalbed methane （CBM） extraction is of great significance to the sustainable development of China’s energy strategy. Based on the analysis of interaction between CBM and coal

and transport process of CBM

the critical measures for enhancing CBM extraction are including increasing pressure gradient and promoting gas desorption. CO2 injection works on increasing yeild of CBM extraction from both two sides. Compared with natural depressurization recovery

the calculation formulas of amount increasement and ratio increasement are deduced. Defining the concept of comparative CBM recovery increasing ratio

the effect of increasing yield is evaluated for CBM extraction by CO2 injection.

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Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO2 Injection

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Mechanism and Effect of Increasing Yeild of Coalbed Methane Extraction by CO₂ Injection