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dc.contributor.author
Amann, Florian
dc.contributor.author
Gischig, Valentin
dc.contributor.author
Evans, Keith
dc.contributor.author
Doetsch, Joseph
dc.contributor.author
Jalali, Reza
dc.contributor.author
Valley, Benoît
dc.contributor.author
Krietsch, Hannes
dc.contributor.author
Dutler, Nathan
dc.contributor.author
Villiger, Linus
dc.contributor.author
Brixel, Bernard
dc.contributor.author
Klepikova, Maria
dc.contributor.author
Kittilä, Anniina
dc.contributor.author
Madonna, Claudio
dc.contributor.author
Wiemer, Stefan
dc.contributor.author
Saar, Martin O.
dc.contributor.author
Loew, Simon
dc.contributor.author
Driesner, Thomas
dc.contributor.author
Maurer, Hansruedi
dc.contributor.author
Giardini, Domenico
dc.date.accessioned
2018-01-16T11:41:38Z
dc.date.available
2018-01-10T12:19:32Z
dc.date.available
2018-01-10T13:35:33Z
dc.date.available
2018-01-16T11:41:38Z
dc.date.issued
2017-08
dc.identifier.issn
1869-9537
dc.identifier.other
10.5194/se-2017-79
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/227149
dc.identifier.doi
10.3929/ethz-b-000227149
dc.description.abstract
In this contribution we present a review of scientific research results that address seismo-hydro-mechanical coupled processes relevant for the development of a sustainable heat exchanger in low permeability crystalline rock and introduce the design of the In-situ Stimulation and Circulation (ISC) experiment at the Grimsel Test Site dedicated to study such processes under controlled conditions. The review shows that research on reservoir stimulation for deep geothermal energy exploitation has been largely based on laboratory observations, large-scale projects and numerical models. Observations of full-scale reservoir stimulations have yielded important results. However, the limited access to the reservoir and limitations in the control on the experimental conditions during deep reservoir stimulations is insufficient to resolve the details of the hydro-mechanical processes that would enhance process understanding in a way that aids future stimulation design. Small scale laboratory experiments provide a fundamental insights into various processes relevant for enhanced geothermal energy, but suffer from 1) difficulties and uncertainties in upscaling the results to the field-scale and 2) relatively homogeneous material and stress conditions that lead to an over-simplistic fracture flow and/or hydraulic fracture propagation behaviour that is not representative for a heterogeneous reservoir. Thus, there is a need for intermediate-scale hydraulic stimulation experiments with high experimental control that bridge the various scales, and for which access to the target rock mass with a comprehensive monitoring system is possible. Only few intermediate-scale hydro-shearing and hydro-fracturing experiments have recently been performed in a densely instrumented rock mass. No such measurements have been performed on faults in crystalline basement rocks. The In-situ Stimulation and Circulation (ISC) experiment currently performed in a naturally fractured and faulted crystalline rock mass at the Grimsel Test Site (Switzerland) is designed to address open research questions, which could not be investigated in the required detail so far. Two hydraulic injection phases were executed to enhance the permeability of the rock mass: a hydro-shearing phase and then a hydraulic fracturing phase. During the injection phases the rock mass deformation across fractures and within intact rock, the pore pressure distribution and propagation and the micro-seismic response were monitored at a high spatial and temporal resolution.
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Deep geothermal energy
en_US
dc.subject
EGS
en_US
dc.subject
Induced seismicity
en_US
dc.subject
In-situ experiments
en_US
dc.subject
Hydromechanical coupling processes in EGS
en_US
dc.title
The seismo-hydro-mechanical behaviour during deep geothermal reservoir stimulations: open question tackled in a decameter-scale in-situ stimulation experiment
en_US
dc.type
Review Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2017-08-07
ethz.journal.title
Solid Earth Discussions
ethz.journal.volume
2017
en_US
ethz.pages.start
se-2017-79
en_US
ethz.size
55 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.publication.place
Göttingen
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::02704 - Geologisches Institut / Geological Institute::03465 - Löw, Simon / Löw, Simon
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03476 - Giardini, Domenico / Giardini, Domenico
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::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02725 - Institut für Geochemie und Petrologie / Institute of Geochemistry and Petrology::03417 - Heinrich, Christoph A. (emeritus) / Heinrich, Christoph A. (emeritus)::08822 - Driesner, Thomas (Tit.-Prof.)
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02725 - Institut für Geochemie und Petrologie / Institute of Geochemistry and Petrology::03417 - Heinrich, Christoph A. (emeritus) / Heinrich, Christoph A. (emeritus)
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth 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::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03465 - Löw, Simon / Löw, Simon
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02725 - Institut für Geochemie und Petrologie / Institute of Geochemistry and Petrology::03417 - Heinrich, Christoph A. (emeritus) / Heinrich, Christoph A. (emeritus)::08822 - Driesner, Thomas (Tit.-Prof.)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02725 - Institut für Geochemie und Petrologie / Institute of Geochemistry and Petrology::03417 - Heinrich, Christoph A. (emeritus) / Heinrich, Christoph A. (emeritus)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
ethz.tag
Grimsel ISC
en_US
ethz.relation.isPreviousVersionOf
10.3929/ethz-b-000246200
ethz.date.deposited
2018-01-10T12:19:32Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-01-10T13:35:37Z
ethz.rosetta.lastUpdated
2020-02-15T10:47:53Z
ethz.rosetta.versionExported
true
ethz.COinS
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