Shale fault zone structure and stress dependent anisotropic permeability and seismic velocity properties (Opalinus Clay, Switzerland)
dc.contributor.author
Wenning, Quinn
dc.contributor.author
Madonna, Claudio
dc.contributor.author
Zappone, Alba
dc.contributor.author
Grab, Melchior
dc.contributor.author
Rinaldi, Antonio Pio
dc.contributor.author
Plötze, Michael
dc.contributor.author
Giardini, Domenico
dc.contributor.author
Nussbaum, Christophe
dc.contributor.author
Wiemer, Stefan
dc.date.accessioned
2021-01-13T09:18:38Z
dc.date.available
2021-01-13T09:13:24Z
dc.date.available
2021-01-13T09:18:38Z
dc.date.issued
2021-03
dc.identifier.issn
0191-8141
dc.identifier.other
10.1016/j.jsg.2020.104273
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/461961
dc.identifier.doi
10.3929/ethz-b-000461961
dc.description.abstract
Given shale's potential to serve as both a caprock for geological carbon sequestration and as the host for nuclear waste disposal, this study focuses on the structural characterization around a 1.5–3 m thick fault within the Opalinus Clay host rock and petrophysical characterization of both the host rock and fault core. Seven boreholes were drilled at the Mont Terri Rock laboratory in late 2018 to constrain the orientation of the so-called ‘Main Fault’ and several fracture families within the fault core using core and image logs. Contrary to typical fault models, matrix permeability and seismic velocity measurements show similarities in the host rock and within the Main Fault. In the clay-rich samples, measurements performed in laboratory at varying confining pressures indicate p-wave velocities range from 2.60 to 2.95 km/s perpendicular to foliation and 3.38–3.58 km/s parallel to foliation at near in-situ confining pressures, which increase with similar anisotropy at higher confining pressures (200 MPa). Since the permeability of the host rock and fault zone is very low (10−19–10−21 m2) flow is expected to prevail along fractures, where critical stress fault analysis suggests that potential hydraulically conductive fractures are actually conjugate to the Main Fault trend.
en_US
dc.format
application/pdf
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Fault structure
en_US
dc.subject
seismic anisotropy
en_US
dc.subject
Shale fault zone
en_US
dc.subject
Mudrock
en_US
dc.subject
Permeability anisotropy
en_US
dc.title
Shale fault zone structure and stress dependent anisotropic permeability and seismic velocity properties (Opalinus Clay, Switzerland)
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-12-29
ethz.journal.title
Journal of Structural Geology
ethz.journal.volume
144
en_US
ethz.journal.abbreviated
J Struct Geol
ethz.pages.start
104273
en_US
ethz.size
16 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02282 - SCCER-SoE / SCCER-SoE
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02818 - Schweiz. Erdbebendienst (SED) / Swiss Seismological Service (SED)
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02607 - Institut für Geotechnik / Institute for Geotechnical Engineering::03691 - Puzrin, Alexander / Puzrin, Alexander::08669 - Gruppe ClayLab
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02704 - Geologisches Institut / Geological Institute::09636 - Behr, Whitney / Behr, Whitney
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03476 - Giardini, Domenico / Giardini, Domenico
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02818 - Schweiz. Erdbebendienst (SED) / Swiss Seismological Service (SED)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02704 - Geologisches Institut / Geological Institute::09636 - Behr, Whitney / Behr, Whitney
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03476 - Giardini, Domenico / Giardini, Domenico
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02607 - Institut für Geotechnik / Institute for Geotechnical Engineering::03691 - Puzrin, Alexander / Puzrin, Alexander::08669 - Gruppe ClayLab
ethz.relation.isSupplementedBy
10.3929/ethz-b-000458394
ethz.date.deposited
2021-01-13T09:13:33Z
ethz.source
FORM
ethz.eth
yes
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ethz.availability
Open access
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ethz.rosetta.installDate
2021-01-13T09:18:50Z
ethz.rosetta.lastUpdated
2025-02-13T22:50:04Z
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true
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