File(s) under permanent embargo
Investigation of an Australian soft rock permeability variation
journal contribution
posted on 2023-05-20, 17:00 authored by Ali TolooiyanAli Tolooiyan, Ashley DysonAshley Dyson, Karami, M, Shaghaghi, T, Ghadrdan, MIn this study, permeabilities of Victorian Brown Coal (VBC) as an Australian soft rock are determined for a range of depths of a continuous coal seam located at the batter crest of the Yallourn brown coal open-cut mine in Victoria, Australia, by implementing a Lugeon packer testing procedure. Permeability values are determined both analytically and by numerical simulation and are compared with laboratory test results. Field testing resulted in permeabilities several orders of magnitude higher than laboratory testing, suggesting the existence of fractures common to lignite structures on a greater scale than can be observed in the laboratory. The variation of depth-based field and laboratory permeabilities is discussed, as well as the necessary conditions required for the numerical modelling of packer testing within VBC.
History
Publication title
Bulletin of Engineering Geology and The EnvironmentVolume
79Pagination
3087-3104ISSN
1435-9529Department/School
School of EngineeringPublisher
SpringerPlace of publication
GermanyRights statement
Copyright 2020 SpringerRepository Status
- Restricted