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Laboratory Studies on Permeability of Coals Using Briquettes: Understanding Underground Storage of CO 2

Author

Listed:
  • Mateusz Kudasik

    (The Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Cracow, Poland)

  • Norbert Skoczylas

    (The Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Cracow, Poland)

  • Letícia Teixeira Palla Braga

    (The Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Cracow, Poland)

Abstract

The work presents the laboratory studies on permeability of two bituminous coal briquettes under confining pressure conditions. The research was carried out in order to assess the possibility of using bituminous coal as a sorbent for CO 2 storage in underground seams. Coal permeability tests were carried out on an original apparatus for testing seepage processes under isobaric conditions on samples subjected to confining pressure. In order to determine the impact of the load on the coal briquettes’ permeability, the tests were carried out at four confining pressures: 1.5, 10, 20 and 30 MPa. The obtained results showed that the coal permeability decreases with an increase in confining pressure. At depths below 250 m, the coal can be a rock poorly permeable to CO 2 , and under such conditions, the applicability of technologies related to the underground storage of CO 2 to coal seams is limited or even impossible.

Suggested Citation

  • Mateusz Kudasik & Norbert Skoczylas & Letícia Teixeira Palla Braga, 2022. "Laboratory Studies on Permeability of Coals Using Briquettes: Understanding Underground Storage of CO 2," Energies, MDPI, vol. 15(3), pages 1-11, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:715-:d:728311
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