INTEGRATED ASSESSMENT OF ¬CO2 ECBM POTENTIAL IN JHARIA COALFELD, INDIA
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Date
2022
Authors
Asif, Mohammad
Wang, Lei
Panigrahi, D. C.
Ojha, Keka
Hazlett, Randy
Journal Title
Journal ISSN
Volume Title
Publisher
Scientifc Reports
Abstract
Coalbed methane (CBM) production is efectively achieved by utilizing two processes, viz. primary
and secondary recovery. In this paper, the primary recovery of CBM was studied using the adsorption
isotherm while CO2-ECBM process for the secondary recovery was simulated with realistic parameters.
The adsorption isotherm for CH4 was drawn up to the pressure of 1200 psi for four coal samples and
Langmuir isotherm curves for both CH4 and CO2 was measured for one sample up to 2000 psi. The
adsorption isotherm of four samples was further utilized for fnding the primary recovery factor
of methane, showing that the average primary recovery is~ 54% with the highest recovery factor
of ~ 76% for one sample. Hence, CO2-ECBM process could be further implemented to enhance gas
recovery. Then, a 3D heterogeneous coalbed model at a depth of 3219 ft was constructed using the
COMET3 simulator to demonstrate the potential of CO2-ECBM recovery technique. A concept of break even time was introduced in this study for the comprehension of CO2-ECBM process. It is found that
coalbed reservoirs may opt to implement this technology with economically sound recovery
Description
Keywords
Type of access: Open Access, CO2-ECBM, Jharia Coalfield, India
Citation
Asif, M., Wang, L., Panigrahi, D. C., Ojha, K., & Hazlett, R. (2022). Integrated assessment of CO2-ECBM potential in Jharia Coalfield, India. Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-10574-5