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The role of coal seam properties on coupled processes during CO 2 sequestration: A parametric study

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  • Mohsen S. Masoudian
  • David W. Airey
  • Abbas El‐Zein

Abstract

It has been proposed that a considerable amount of CO 2 can be safely sequestered from the atmosphere in geological formations such as coalbeds. In spite of promising evidence of the economic and technical viability of CO 2 sequestration in coal seams, many of its hydro‐geomechanical aspects are not fully understood. This paper presents a coupled hydro‐mechanical model that is used to assess the reservoir performance of a coalbed and the induced surface and subsurface deformations. A series of numerical simulations has been performed to study the effects of different parameters on the reservoir and geomechanical behaviors associated with CO 2 injection. A single‐phase dual‐porosity model is coupled to a one‐dimensional poroelastic model and an analytical model for the ground surface movements. Through these simulations, the role of three sets of parameters at different scales is investigated: fracture characteristics, matrix characteristics, and geomechanical/geometrical characteristics. The comparative impacts of these parameters on reservoir permeability, volume of the stored CO 2 , and deformations of the coalbed and the ground surface, are quantitatively assessed, in order to identify the most important parameters influencing the hydro‐mechanical response of the ground.

Suggested Citation

  • Mohsen S. Masoudian & David W. Airey & Abbas El‐Zein, 2016. "The role of coal seam properties on coupled processes during CO 2 sequestration: A parametric study," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 6(4), pages 492-518, August.
    • Handle: RePEc:wly:greenh:v:6:y:2016:i:4:p:492-518
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    File URL: http://hdl.handle.net/10.1002/ghg.1575
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    References listed on IDEAS

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    1. Yamazaki, Toyohiko & Aso, Kazuo & Chinju, Jiro, 2006. "Japanese potential of CO2 sequestration in coal seams," Applied Energy, Elsevier, vol. 83(9), pages 911-920, September.
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    Cited by:

    1. Lin, Jia & Ren, Ting & Cheng, Yuanping & Nemcik, Jan & Wang, Gongda, 2019. "Cyclic N2 injection for enhanced coal seam gas recovery: A laboratory study," Energy, Elsevier, vol. 188(C).
    2. Fan, Chaojun & Elsworth, Derek & Li, Sheng & Zhou, Lijun & Yang, Zhenhua & Song, Yu, 2019. "Thermo-hydro-mechanical-chemical couplings controlling CH4 production and CO2 sequestration in enhanced coalbed methane recovery," Energy, Elsevier, vol. 173(C), pages 1054-1077.

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