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Changes in coal permeability in the process of deformation
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SYSNO ASEP 0107708 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Changes in coal permeability in the process of deformation Title Změny propustnosti uhlí v procesu deformace Author(s) Kožušníková, Alena (UGN-S) RID Source Title Acta Universitatis Carolinae. Geologica - ISSN 0001-7132
Roč. 45, 2-4 (2001), s. 75-77Number of pages 3 s. Action Coal Geology Conference /9./ Event date 25.06.2001-29.06.2001 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords gas permeability measurement ; triaxial state of stress Subject RIV DB - Geology ; Mineralogy R&D Projects GA105/00/0875 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z3086906 - UGN-S Annotation The method of gas permeability measurement in triaxial state of stress by means of triaxial cell KTK100 was developed in the Institute of Geonics AS CR. A series of measurements was undertaken to find the parameters influencing gas permeability. The changes in permeability of coal samples during deformation process were determined even after the postfailure part. The samples were tested either at increasing confining pressures (5 to 50 MPa) or with a constant confining pressure and increasing axial stress. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2005
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