IDEAS home Printed from https://ideas.repec.org/a/wly/greenh/v7y2017i3p562-578.html
   My bibliography  Save this article

Modeling of CO 2 sequestration in coal seams: Role of CO 2 ‐induced coal softening on injectivity, storage efficiency and caprock deformation

Author

Listed:
  • Tianran Ma
  • Jonny Rutqvist
  • Weiqun Liu
  • Li Zhu
  • Kunhwi Kim

Abstract

An effective and safe operation for sequestration of CO 2 in coal seams requires a clear understanding of injection‐induced coupled hydromechanical processes such as the evolution of pore pressure, permeability, and induced caprock deformation. In this study, CO 2 injection into coal seams was studied using a coupled flow‐deformation model with a new stress‐dependent porosity and permeability model that considers CO 2 ‐induced coal softening. Based on triaxial compression tests of coal samples extracted from the site of the first series of enhanced coalbed methane field tests in China, a softening phenomenon that a substantial (one‐order‐of‐magnitude) decrease of Young's modulus and an increase of Poisson's ratio with adsorbed CO 2 content was observed. Such softening was considered in the numerical simulation through an exponential relation between elastic properties (Young's modulus and Poisson's ratio) and CO 2 pressure considering that CO 2 content is proportional to the CO 2 pressure. The results of the numerical simulation show that the softening of the coal strongly affects the CO 2 sequestration performance, first by impeding injectivity and stored volume (cumulative injection) during the first week of injection, and thereafter by softening mediated rebound in permeability that tends to increase injectivity and storage over the longer term. A sensitivity study shows that stronger CO 2 ‐induced coal softening and higher CO 2 injection pressure contribute synergistically to increase a significant increase of CO 2 injectivity and adsorption, but also result in larger caprock deformations and uplift. Overall, the study demonstrates the importance of considering the CO 2 ‐induced softening when analyzing the performance and environmental impact of CO 2 ‐sequestration operations in unminable coal seams. © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

Suggested Citation

  • Tianran Ma & Jonny Rutqvist & Weiqun Liu & Li Zhu & Kunhwi Kim, 2017. "Modeling of CO 2 sequestration in coal seams: Role of CO 2 ‐induced coal softening on injectivity, storage efficiency and caprock deformation," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 7(3), pages 562-578, June.
    • Handle: RePEc:wly:greenh:v:7:y:2017:i:3:p:562-578
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1002/ghg.1664
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Gale, John, 2004. "Geological storage of CO2: What do we know, where are the gaps and what more needs to be done?," Energy, Elsevier, vol. 29(9), pages 1329-1338.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lai, N.Y.G. & Yap, E.H. & Lee, C.W., 2011. "Viability of CCS: A broad-based assessment for Malaysia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 3608-3616.
    2. Afshin Tatar & Amin Shokrollahi & Moonyong Lee & Tomoaki Kashiwao & Alireza Bahadori, 2015. "Prediction of supercritical CO 2 /brine relative permeability in sedimentary basins during carbon dioxide sequestration," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 5(6), pages 756-771, December.
    3. Erlei Su & Yunpei Liang & Lei Li & Quanle Zou & Fanfan Niu, 2018. "Laboratory Study on Changes in the Pore Structures and Gas Desorption Properties of Intact and Tectonic Coals after Supercritical CO 2 Treatment: Implications for Coalbed Methane Recovery," Energies, MDPI, vol. 11(12), pages 1-13, December.
    4. Nasvi, M.C.M. & Ranjith, P.G. & Sanjayan, J. & Haque, A., 2013. "Sub- and super-critical carbon dioxide permeability of wellbore materials under geological sequestration conditions: An experimental study," Energy, Elsevier, vol. 54(C), pages 231-239.
    5. Griffin, Paul A. & Jaffe, Amy Myers & Lont, David H. & Dominguez-Faus, Rosa, 2015. "Science and the stock market: Investors' recognition of unburnable carbon," Energy Economics, Elsevier, vol. 52(PA), pages 1-12.
    6. Perera, M.S.A. & Ranjith, P.G. & Choi, S.K. & Airey, D., 2011. "The effects of sub-critical and super-critical carbon dioxide adsorption-induced coal matrix swelling on the permeability of naturally fractured black coal," Energy, Elsevier, vol. 36(11), pages 6442-6450.
    7. Wang, Jinkai & Feng, Xiaoyong & Wanyan, Qiqi & Zhao, Kai & Wang, Ziji & Pei, Gen & Xie, Jun & Tian, Bo, 2022. "Hysteresis effect of three-phase fluids in the high-intensity injection–production process of sandstone underground gas storages," Energy, Elsevier, vol. 242(C).
    8. Ricci, Elena Claire & Bosetti, Valentina & Baker, Erin & Jenni, Karen E., 2014. "From Expert Elicitations to Integrated Assessment: Future Prospects of Carbon Capture Technologies," Climate Change and Sustainable Development 172451, Fondazione Eni Enrico Mattei (FEEM).
    9. Shafaei, Mohammad Javad & Abedi, Jalal & Hassanzadeh, Hassan & Chen, Zhangxin, 2012. "Reverse gas-lift technology for CO2 storage into deep saline aquifers," Energy, Elsevier, vol. 45(1), pages 840-849.
    10. Raziperchikolaee, S. & Alvarado, V. & Yin, S., 2013. "Effect of hydraulic fracturing on long-term storage of CO2 in stimulated saline aquifers," Applied Energy, Elsevier, vol. 102(C), pages 1091-1104.
    11. Mandadige Samintha Anne Perera & Ashani Savinda Ranathunga & Pathegama Gamage Ranjith, 2016. "Effect of Coal Rank on Various Fluid Saturations Creating Mechanical Property Alterations Using Australian Coals," Energies, MDPI, vol. 9(6), pages 1-15, June.
    12. Samin Raziperchikolaee & Vivek Singh & Mark Kelley, 2022. "Quantifying the impact of effective stress on changes in elastic wave velocities due to CO2 injection into a depleted carbonate reef," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 12(1), pages 35-47, February.
    13. Pengfei Lv & Yu Liu & Lanlan Jiang & Yongchen Song & Bohao Wu & Jiafei Zhao & Yi Zhang, 2016. "Experimental determination of wettability and heterogeneity effect on CO 2 distribution in porous media," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 6(3), pages 401-415, June.
    14. Zhang, Lisong & Zhang, Shiyan & Jiang, Weizhai & Wang, Zhiyuan & Li, Jing & Bian, Yinghui, 2018. "A mechanism of fluid exchange associated to CO2 leakage along activated fault during geologic storage," Energy, Elsevier, vol. 165(PB), pages 1178-1190.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wly:greenh:v:7:y:2017:i:3:p:562-578. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Wiley Content Delivery (email available below). General contact details of provider: https://doi.org/10.1002/(ISSN)2152-3878 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.