Geological Storage of CO₂ to Enhance Coalbed Methane Production

Abstract:

The concentration of carbon dioxide gas in atmosphere is remarkably increasing because of burning fossil fuels, such as coal, natural gas and oil. CO₂ is an important Greehouse Gas which results in global warming, and it also threatens human life security and social economy sustainable developing. CO₂ geological storage is considered to be a fairly significant way to seal CO₂ permanently, it can also slow down global warming. Coals have a super adsorption capacity, especially to CO₂, because of the special dual porosity and huge specific surface. Therefore, CO₂ can be injected and sequestrated in coal seams by geological storage. Geological storage of CO₂ can not only reduces its concentration in atmosphere, but also can enhance coalbed methane production synchronously. The paper discusses CO₂ injection and sequestration in coal bed to enhance CBM production mechanism, feasibility and propose a technical route. Experiments show that the technical route of CO₂ geological storage to enhance CBM production is feasible, and the technical of CO₂ geological storage is good for slowing down globle warming and reducing gas accidents.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 1173-1177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.1173
• Online since: May 2012
• Authors: Bei Bei Zhang, Xian Cun Song
• Keywords: Carbon Dioxide, CO₂ Geological Storage, Coalbed Methane (CBM), Global Warming

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