Hao, C., Yong, Q., Shangwen, Z., Hongyan, W., Zhenhong, C., Guizhong, L., Ze, D., & Lei, C. (2019). Microbial Simulation Experiment on Enhancing Coalbed Methane Production. Preprints. https://doi.org/10.20944/preprints201903.0078.v1
Chicago/Turabian Style
Hao, C., Deng Ze and Cheng Lei. 2019 "Microbial Simulation Experiment on Enhancing Coalbed Methane Production" Preprints. https://doi.org/10.20944/preprints201903.0078.v1
Abstract
Coalbed Methane(CBM) production enhancement for single wells is a big problem to CBM industrialization. Low production is due to insufficient gas generation by thermogenic. Luckily, Biogenic gas was found in many areas and its supply is assumed to improve coalbed methane production. Therefore, microbial simulation experiment will demonstrate the effectiveness of the assumption. From microbial simulation experiment on different coal ranks, it is found that microbes can use coals to produce biogas under laboratory conditions. With different temperatures for different experiments, it turns out that the gas production at 35 ℃ is greater than that at 15℃,indicating that 35℃ is more suitable for microbes to produce gas. According to quantitative experiments, adding exogenous nutrients or exogenous bacteria can improve CBM production. Moreover, the production enhancement ratio can reach up to 115% under the condition of adding exogenous bacterial species, while the ratio for adding nutrients can be up to 144%.
Keywords
Coalbed Methane(CBM); Methanogens; Biogenic Gas; CBM Production Enhancement
Subject
Environmental and Earth Sciences, Geochemistry and Petrology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
