Permeability and seismic velocity anisotropy across a ductile-brittle fault zone in crystalline rock
Wenning, Quinn; Madonna, Claudio; de Haller, Antoine; Burg, Jean-Pierre
Publications of the Grimsel ISC Project
The experiments within the Grimsel "In-Situ Stimulation and Circulation (ISC)" project were completed in 2017. Once the processing and interpretation is finished, all data acquired as well as journal and conference contributions, reports and datasets will be made public and appear below. If you have questions related to ISC publications or data, please contact the respective first authors.
Transient hydraulic tomography approach to characterize main flowpaths and their connectivity in fractured media
Klepikova, Maria; Brixel, Bernard; Jalali, Reza
Solute tracer test quantification of the effects of hot water injection into hydraulically stimulated crystalline rock
Kittilä, Anniina; Jalali, Mohammadreza; Saar, Martin O.; Kong, Xiang-Zhao
Influence of reservoir geology on seismic response during decameter-scale hydraulic stimulations in crystalline rock
Villiger, Linus; Gischig, Valentin S.; Doetsch, Joseph; Krietsch, Hannes; Dutler, Nathan O.; Jalali, Mohammadreza; Valley, Benoît; Selvadurai, Paul Antony; Mignan, Arnaud; Plenkers, Katrin; Giardini, Domenico; Amann, Florian; Wiemer, Stefan
Transmissivity Changes and Microseismicity Induced by Small-Scale Hydraulic Fracturing Tests in Crystalline Rock
Jalali, Reza; Gischig, Valentin; Doetsch, Joseph; Näf, Rico; Krietsch, Hannes; Klepikova, Maria; Amann, Florian; Giardini, Domenico
Characterizing a decametre-scale granitic reservoir using ground-penetrating radar and seismic methods
Doetsch, Joseph; Krietsch, Hannes; Schmelzbach, Cédric; Jalali, Mohammadreza; Gischig, Valentin; Villiger, Linus; Amann, Florian; Maurer, Hansruedi
A methodology to determine the elastic properties of anisotropic rocks from a single uniaxial compression test
Nejati, Morteza; Dambly, Marie Luise Texas; Saar, Martin O.
Meter-scale stress heterogeneities and stress redistribution drive complex fracture slip and fracture growth during a hydraulic stimulation experiment
Villiger, Linus; Gischig, Valentin S.; Kwiatek, Grzegorz; Krietsch, Hannes; Doetsch, Joseph; Jalali, Mohammadreza; Amann, Florian; Giardini, Domenico; Wiemer, Stefan
On the link between fracture toughness, tensile strength, and fracture process zone in anisotropic rocks
Dutler, Nathan; Nejati, Morteza; Valley, Benoît; Amann, Florian; Molinari, Giulio
Modified semi-circular bend test to determine the fracture toughness of anisotropic rocks
Nejati, Morteza; Aminzadeh, Ali; Saar, Martin O.; Driesner, Thomas
Field Comparison of DNA‐Labeled Nanoparticle and Solute Tracer Transport in a Fractured Crystalline Rock
Kittilä, Anniina; Jalali, Reza; Evans, Keith F.; Willmann, Matthias; Saar, Martin O.; Kong, Xiang-Zhao
Mode I fracture growth in anisotropic rocks: Theory and experiment
Nejati, Morteza; Aminzadeh, Ali; Amann, Florian; Saar, Martin O.; Driesner, Thomas
On Brazilian disk test for mixed-mode I/II fracture toughness experiments of anisotropic rocks
Aminzadeh, Ali; Fahimifar, Ahmad; Nejati, Morteza
On the directional dependency of Mode I fracture toughness in anisotropic rocks
Nejati, Morteza; Aminzadeh, Ali; Driesner, Thomas; Saar, Martin O.
A multi-phasic approach for estimating the Biot coefficient for Grimsel granite
Selvadurai, Patrick; Selvadurai, Paul Antony; Nejati, Morteza
Subsurface fluid pressure and rock deformation monitoring using seismic velocity observations
Doetsch, Joseph; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Nejati, Morteza; Amann, Florian; Jalali, Reza; Madonna, Claudio; Maurer, Hansruedi; Wiemer, Stefan; Driesner, Thomas; Giardini, Domenico
On the link between stress field and small-scale hydraulic fracture growth in anisotropic rock derived from microseismicity
Gischig, Valentin; Doetsch, Joseph; Maurer, Hansruedi; Krietsch, Hannes; Amann, Florian; Evans, Keith Frederick; Nejati, Morteza; Jalali, Reza; Valley, Benoît; Obermann, Anne; Wiemer, Stefan; Giardini, Domenico
Hydromechanical processes and their influence on the stimulation effected volume: observations from a decameter-scale hydraulic stimulation project
Krietsch, Hannes; Gischig, Valentin S.; Doetsch, Joseph; Evans, Keith F.; Villiger, Linus; Jalali, Mohammadreza; Valley, Benoît; Loew, Simon; Amann, Florian
Hydraulic fracture propagation in a heterogeneous stress field in a crystalline rock mass
Dutler, Nathan; Valley, Benoît; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Doetsch, Joseph; Brixel, Bernard; Jalali, Reza; Amann, Florian
In situ observation of helium and argon release during fluid-pressure-triggered rock deformation
Roques, Clément; Weber, Ulrich W.; Brixel, Bernard; Krietsch, Hannes; Dutler, Nathan; Brennwald, Matthias S.; Villiger, Linus; Doetsch, Joseph; Jalali, Mohammadreza; Gischig, Valentin; Amann, Florian; Valley, Benoît; Klepikova, Maria; Kipfer, Rolf
Impact of the ISC Experiment at the Grimsel Test Site - Assessment of Potential Seismic Hazard and Disturbances to Nearby Experiments and KWO Infrastructure
Gischig, Valentin; Jalali, Reza; Amann, Florian; Krietsch, Hannes; Klepikova, Maria; Esposito, Simona; Broccardo, Marco; Obermann, Anne; Mignan, Arnaud; Doetsch, Joseph; Madonna, Claudio
Gischig, Valentin; Amann, Florian
Grimsel ISC Experiment Description
Doetsch, Joseph; Gischig, Valentin; Krietsch, Hannes; Villiger, Linus; Amann, Florian; Dutler, Nathan; Jalali, Reza; Brixel, Bernard; Klepikova, Maria; Roques, Clément; Giertzuch, Peter-Lasse; Kittilä, Anniina; Hochreutener, Rebecca
Hydraulic-fracturing and HTPF - Tests in borehole nos. SB 15.001, SB 15.003 AND SB 15.004
Klee, Gerd
Stress measurements by overcoring at the Grimsel site. Results from the campaign of August-September 2015
Bouffier, Christian
The seismo-hydro-mechanical behaviour during deep geothermal reservoir stimulations: open question tackled in a decameter-scale in-situ stimulation experiment
Amann, Florian; Gischig, Valentin; Evans, William; Doetsch, Joseph; Jalali, Reza; Valley, John W.; Krietsch, Hannes; Dutler, Hans; Villiger, Linus; Brixel, Bernard; Klepikova, Maria; Kittilä, Anniina; Madonna, Claudio; Wiemer, Stefan; Saar, Martin O.; Loew, Simon; Driesner, Thomas; Maurer, Hansrudolf; Giardini, Domenico
4D Tracer Flow Reconstruction in Fractured Rock through Borehole GPR Monitoring
Giertzuch, Peter-Lasse; Doetsch, Joseph; Shakas, Alexis; Jalali, Mohammadreza; Brixel, Bernard; Maurer, Hansruedi
GPR 250MHz Borehole Dataset during Salt Tracer injection
Giertzuch, Peter-Lasse; Doetsch, Joseph; Jalali, Reza; Shakas, Alexis
Data set from the Grimsel ISC hydraulic tomography experiments carried out between injection boreholes
Klepikova, Maria; Jalali, Reza; Brixel, Bernard
Comprehensive geological dataset for a fractured crystalline rock volume at the Grimsel Test Site
Krietsch, Hannes; Doetsch, Joseph; Dutler, Nathan; Jalali, Reza; Gischig, Valentin; Loew, Simon; Amann, Florian
Hydro mechanical data set from the six Grimsel ISC hydraulic shearing experiments
Krietsch, Hannes; Gischig, Valentin; Doetsch, Joseph; Jalali, Reza; Amann, Florian
Data collection for the Grimsel In-Situ Stimulation and Circulation (ISC) experiment
Doetsch, Joseph; Gischig, Valentin; Amman, Florian; Jalali, Reza; Krietsch, Hannes; Giardini, Domenico
Hydro mechanical data set from the six Grimsel ISC hydraulic fracturing experiments
Dutler, Nathan; Gischig, Valentin; Doetsch, Joseph; Jalali, Reza; Krietsch, Hannes; Amann, Florian
Dataset of pressure tomography between the two injection boreholes during the ISC experiment characterization phase at Grimsel Test Site
Jalali, Mohammadreza R.; Ringel, Lisa; Bayer, Peter; Brixel, Bernard
Dataset for "Permeability and seismic velocity anisotropy across a ductile-brittle fault zone in crystalline rock"
Wenning, Quinn; Madonna, Claudio; de Haller, Antoine; Burg, Jean-Pierre
Single-Hole and Cross-Hole Time-Lapse GPR 250MHz Borehole Dataset during Salt Tracer injection
Giertzuch, Peter-Lasse; Doetsch, Joseph; Brixel, Bernard; Jalali, Mohammadreza; Jalali, Mohammadreza
Picoseismic data set of the 12 Grimsel HS and HF ISC hydraulic stimulation experiments
Villiger, Linus; Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Jalali, Reza; Dutler, Nathan; Amann, Florian
Single- and cross-hole hydraulic characterization of the ISC support volume at the Grimsel Test Site
Brixel, Bernard; Jalali, Reza; Klepikova, Maria V.
Active Seismic Monitoring Data of Hydraulic Stimulations at the Grimsel Test Site
Schopper, Florian; Doetsch, Joseph; Gischig, Valentin; Villiger, Linus; Jalali, Reza; Amann, Florian
Active seismic monitoring of a hydraulic injection at the Grimsel Test Site
Doetsch, Joseph; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Jalali, Reza; Amann, Florian
Tracer test data collected using solute dye tracers and DNA nanotracers at the Grimsel Test Site
Kittilä, Anniina; Jalali, Mohammadreza; Evans, Keith F.; Saar, Martin O.
Data set from solute dye tracer tests at the Grimsel Test Site
Kittilä, Anniina; Jalali, Reza; Evans, Keith F.; Saar, Martin O.
Continuous monitoring of dissolved gases during hydraulic fracturing at the Grimsel Test Site
Roques, Clément; Weber, Ulrich W.; Kipfer, Rolf
GPR and seismic data for characterizing the ISC rock volume at the Grimsel Test Site
Doetsch, Joseph; Krietsch, Hannes; Gischig, Valentin; Amann, Florian
Hydraulic Characterization Data Collected Pre- and Post-hydraulic fracturing experiments for Stress Measurement at Grimsel Test Site
Jalali, Reza; Klepikova, Maria
Microseismicity observed during small-scale hydraulic fracturing experiments at the Grimsel Test Site
Gischig, Valentin; Doetsch, Joseph; Maurer, Hansruedi; Krietsch, Hannes; Amann, Florian; Evans, Keith Frederick; Jalali, Reza; Obermann, Anne
Micro-seismic monitoring during hydraulic-shearing experiments at the Grimsel underground laboratory
Villiger, Linus; Gischig, Valentin; Doetsch, Joseph; Dutler, Nathan; Krietsch, Hannes; Amann, Florian; Wiemer, Stefan
Results from combined characterization based on geological mapping and geophysics: Grimsel Test Site
Krietsch, Hannes; Doetsch, Joseph; Gischig, Valentin; Amann, Florian
Complex interplay between fracture opening and shearing during in-situ stimulation experiments
Krietsch, Hannes; Villiger, Linus; Doetsch, Joseph; Gischig, Valentin; Amann, Florian
Detecting induced seismicity on various scales: Monitoring the Grimsel injections
Gischig, Valentin; Doetsch, Joseph; Kraft, Toni; Maurer, Hansruedi; Wiemer, Stefan
Geophysical imaging and characterization of the DUG Lab at the Grimsel Test Site
Doetsch, Joseph; Gischig, Valentin; Maurer, Hansruedi
Stress Characterisation and stress modeling at the Grimsel Test Site for the In-situ Stimulation and Circulation Project
Dutler, Nathan; Gischig, Valentin; Krietsch, Hannes; Amann, Florian; Valley, Benoît; Evans, Keith F.
Characterizing rock anisotropy and nonlinearity using a single uniaxial compression test
Nejati, Morteza; Dambly, Marie Luise Texas; Saar, Martin O.
A new methodology to determine the shear moduli in anisotropic rocks using a single uniaxial test
Dambly, Marie Luise Texas; Nejati, Morteza; Saar, Martin O.
Fracture process zone in anisotropic rock
Dutler, Nathan; Nejati, Morteza; Valley, Benoît; Amann, Florian
Energy-based approaches for the computation of fracture parameters in poroelastic media
Nejati, Morteza; Driesner, Thomas
Stefanou, Ioannis; Sulem, Jean; Poulet, Thomas; Regenauer-Lieb, Klaus; Veveakis, Emmanuil
Fully Hydro-Mechanically Coupled Experiments and Simulations on Rough Fractures Subjected to High-Pressure Fluid Injection
Vogler, Daniel; Settgast, Randolph R.; Annavarapu, Chandrasekhar; Madonna, Claudio; Bayer, Peter; Amann, Florian
Characterization of the in-situ stress field at Grimsel Test Site
Krietsch, Hannes; Dutler, Nathan; Gischig, Valentin; Valley, Benoît; Evans, Keith F.; Amann, Florian
Determining Mode I fracture toughness in anisotropic rocks
Nejati, Morteza; Aminzadeh, Ali; Saar, Martin O.; Driesner, Thomas
Physical property characterization of a damage zone in granitic rock: Implications for geothermal reservoir properties
Wenning, Quinn; Madonna, Claudio; Amann, Florian; Gischig, Valentin; Burg, Jean-Pierre
Petrophysical properties through a Grimsel granodiorite shear zone – Implications for geothermal reservoir evaluation and modeling
Wenning, Quinn; Madonna, Claudio; Moulas, Evangelos; Burg, Jean-Pierre
Overview of the hydraulic stimulation experiments at the Grimsel Test Site
Doetsch, Joseph; Amann, Florian; Gischig, Valentin; Jalali, Reza; Krietsch, Hannes; Villiger, Linus; Evans, Keith F.; Valley, Benoît; Dutler, Nathan; Brixel, Bernard; Klepikova, Maria; Kittilä, Anniina; Wiemer, Stefan; Saar, Martin O.; Loew, Simon; Driesner, Thomas; Maurer, Hansruedi; Giardini, Domenico
Injection Protocol and First Results of Hydraulic Fracturing Experiments at the Grimsel Test Site
Dutler, Nathan; Valley, Benoît; Villiger, Linus; Krietsch, Hannes; Jalali, Reza; Gischig, Valentin; Doetsch, Joseph; Amann, Florian
Building a geological model for analysis and numerical modelling of hydraulic stimulation experiments
Krietsch, Hannes; Doetsch, Joseph; Gischig, Valentin; Jalali, Reza; Dutler, Nathan; Amann, Florian; Loew, Simon
Subsurface Fluid Pressure and Rock Deformation Monitoring using Seismic Velocity Observations
Doetsch, Joseph; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Nejati, Morteza; Amann, Florian; Jalali, Reza; Madonna, Claudio; Maurer, Hansruedi; Wiemer, Stefan; Driesner, Thomas; Giardini, Domenico
Fracture growth and comparison to analytical solution for an in-situ hydraulic fracturing experiment
Dutler, Nathan; Valley, Benoît; Gischig, Valentin; Krietsch, Hannes; Villiger, Linus; Doetsch, Joseph; Jalali, Reza; Amann, Florian
Insights into the hydromechanical rock mass responses during in-situ rock mass stimulations
Krietsch, Hannes; Gischig, Valentin; Doetsch, Joseph; Evans, Keith; Villiger, Linus; Jalali, Reza; Valley, Benoît; Loew, Simon; Amann, Florian
Preliminary results of six decameter scale hydraulic fracturing experiments (HF) at the Grimsel Test Site (GTS)
Dutler, Nathan; Valley, Benoît; Krietsch, Hannes; Villiger, Linus; Jalali, Reza; Gischig, Valentin; Doetsch, Joseph; Amann, Florian
On the variability of seismic response during multiple decameter-scale hydraulic stimulations in crystalline rock
Villiger, Linus; Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Dutler, Nathan; Selvadurai, Paul Antony; Jalali, Reza; Valley, Benoît; Amann, Florian; Wiemer, Stefan
Injection Protocol and First Results of Hydraulic Fracturing Experiments at the Grimsel Test Site
Dutler, Nathan; Valley, Benoît; Villiger, Linus; Krietsch, Hannes; Jalali, Reza; Gischig, Valentin; Doetsch, Joseph; Amann, Florian
SCCER-SoE
Fracture growth and comparison to analytical solution for an in-situ hydraulic fracturing experiment
Dutler, Nathan; Valley, Benoît; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Doetsch, Joseph; Jalali, Reza; Amann, Florian
Does a cyclic fracturing process agree with a fluid driven fracture solution?
Dutler, Nathan; Valley, Benoît; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Doetsch, Joseph; Jalali, Reza; Amann, Florian
Transient hydraulic tomography for characterizing hydraulic properties and connectivity of the major fractures
Klepikova, Maria; Jalali, Reza; Brixel, Bernard; Amann, Florian
Salt tracer flow path reconstruction using ground penetrating radar
Giertzuch, Peter-Lasse; Doetsch, Joseph; Jalali, Reza; Shakas, Alexis; Krietsch, Hannes; Brixel, Bernard; Schmelzbach, Cédric; Maurer, Hansruedi
On the variability of the seismic response during multiple decametre-scale hydraulic stimulations at the Grimsel Test Site
Villiger, Linus; Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Jalali, Reza; Dutler, Nathan; Valley, Benoît; Amann, Florian; Mignan, Arnaud; Wiemer, Stefan
Tracer based characterization of the connected fracture volume in the DUG Lab at the Grimsel Test Site
Kittilä, Anniina; Evans, Keith; Jalali, Reza; Willmann, Matthias; Saar, Martin O.
DNA nanotracers characterization of stimulation enhanced pore in fractured rock
Kittilä, Anniina; Evans, Keith Frederick; Jalali, Reza; Willmann, Matthias; Saar, Martin O.
Permeability changes induced by hydraulic stimulation at the Grimsel test Site
Jalali, Reza; Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Villiger, Linus; Dutler, Nathan; Valley, Benoît; Evans, Keith F.; Amann, Florian
A comparison of the seismo-hydro-mechanical observations during two hydraulic stimulations at the Grimsel Test Site.
Gischig, Valentin; Doetsch, Joseph; Jalali, Reza; Amann, Florian; Krietsch, Hannes; Villiger, Linus; Dutler, Nathan; Valley, Benoît
Swiss Competence Center for Energy Research – Supply of Electricity (SCCER-SoE)
Pico-seismicity during hydraulic stimulation experiments at the Grimsel Test Site
Villiger, Linus; Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Jalali, Reza; Dutler, Nathan; Valley, Benoît; Evans, Keith F.; Amann, Florian; Wiemer, Stefan
Swiss Competence Center for Energy Research – Supply of Electricity (SCCER-SoE)
Induced micro-seismicity observed during meter-scale hydraulic-fracturing
Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Maurer, Hansruedi; Amann, Florian; Evans, Keith F.; Jalali, Reza; Obermann, Anne; Nejati, Morteza; Valley, Benoît; Wiemer, Stefan
Pressure propagation during decameter-scale hydraulic stimulation experiments in crystalline rock at the Grimsel Test Site
Gischig, Valentin; Jalali, Reza; Doetsch, Joseph; Krietsch, Hannes; Villiger, Linus; Amann, Florian
On the seismo-hydromechanical response of a shear zone during hydraulic stimulation
Krietsch, Hannes; Villiger, Linus; Doetsch, Joseph; Gischig, Valentin; Jalali, Reza; Amann, Florian
Chen, Jianye; Niemeijer, André; Hangx, Suzanne; Spiers, Chris
Flow path characterization using DNA-based smart tracers in the Grimsel Deep Underground Geothermal Laboratory (DUG-Lab)
Kittilä, Anniina; Evans, Keith; Deuber, Claudia; Saar, Martin O.
Stress measurements in crystalline rock: Comparison of overcoring, hydraulic fracturing and induced seismicity results
Krietsch, Hannes; Gischig, Valentin; Jalali, Reza; Amann, Florian; Evans, Keith Frederick; Doetsch, Joseph; Valley, Benoît
Mechanical, Hydraulic and Seismological Behaviour of Crystalline Rock as a Response to Hydraulic Fracturing at the Grimsel Test Site
Jalali, Reza; Gischig, V.; Doetsch, Joseph; Krietsch, Hannes; Amann, F.; Klepikova, Maria
Reservoir Stimulation Experiments at the Grimsel Test Site: Stress Measurements using Hydraulic fracturing, Hydraulic Tests on Pre-existing Fractures and Overcoring
Doetsch, Joseph; Gischig, Valentin; Amann, Florian; Madonna, Claudio; Jalali, Reza; Valley, Benoît; Evans, Keith F.
Modeling the Hydraulic Fracture Stimulation performed for Reservoir Permeability Enhancement at the Grimsel Test Site, Switzerland
Settgast, Randolph; Vogler, Daniel; Gischig, Valentin; Jalali, Reza; Doetsch, Joseph; Valley, Benoît; Evans, Keith F.; Sherman, Christopher; Saar, Martin O.; Amann, Florian
The use of novel DNA nanotracers to determine Groundwater flow paths - a test study at the Grimsel Deep Underground Geothermal (DUG) Laboratory in Switzerland
Kittilä, Anniina; Evans, Keith; Puddu, Michela; Mikutis, Gediminas; Grass, Robert N.; Deuber, Claudia; Saar, Martin O.
GPR imaging of shear zones in crystalline rock
Doetsch, Joseph; Krietsch, Hannes; Lajaunie, Myriam; Schmelzbach, Cédric; Maurer, Hansruedi; Amann, Florian
An Interdisciplinary Decameter-scale Reservoir Stimulation Practice at the Grimsel Test Site
Jalali, Reza; Doetsch, Joseph; Gischig, V.; Madonna, C.; Amann, F.
Diagnostic pressure analysis from the in-situ decameter-scale HF experiment
Dutler, Nathan; Brixel, Bernard; Roques, Clément; Valley, Benoît; Jalali, Reza; Amann, Florian
Towards multi-observational full-waveform inversion
Paitz, Patrick; Sager, Korbinian; Schmelzbach, Cédric; Doetsch, Joseph; Chalari, Athena; Fichtner, Andreas
The measurement of fracture toughness anisotropy in Grimsel Granodiorite using semi-circular samples
Dutler, Hans; Nejati, Morteza; Amann, Florian; Valley, Benoît
High-Resolution Time-Lapse GPR Monitoring of Saline Tracer Flow in Fractured Rock
Giertzuch, Peter-Lasse; Doetsch, Joseph; Jalali, Reza; Shakas, Alexis; Schmelzbach, Cédric; Maurer, Hansruedi
An in-situ stimulation experiment in crystalline rock - seismo-hydro-mechanical response during hydraulic fracturing tests
Doetsch, Joseph; Amann, F.; Gischig, V.; Jalali, Reza; Madonna, C.; Evans, K.; Valley, B.; Giardini, D.; Wiemer, S.; Maurer, H. R.
Fracture Transmissivity Development as a Response to Hydraulic Fracturing and Hydraulic Jacking at Grimsel Test Site
Loew, Simon; Jalali, Reza; Klepikova, Maria; Amann, Florian
Modeling the Hydraulic Fracture Stimulation performed for Reservoir Permeability Enhancement at the Grimsel Test Site, Switzerland
Vogler, Daniel; Settgast, Randolph; Sherman, Christopher S.; Gischig, Valentin; Jalali, Reza; Doetsch, Joseph; Valley, Benoît; Evans, Keith F.; Amann, Florian; Saar, Martin O.
Noble Gas Release during Reservoir Stimulation
Roques, Clément; Weber, Ulrich W.; Krietsch, Hannes; Dutler, Nathan; Brixel, Bernard; Villiger, Linus; Doetsch, Joseph; Jalali, Reza; Gischig, Valentin; Klepikova, Maria; Amann, Florian; Valley, Benoît; Kipfer, Rolf
Evolution of Preferential Flow Paths during the In-situ Stimulation and Circulation (ISC) Experiment – Grimsel Test Site
Jalali, Reza; Roques, Clément; Leresche, Stéphane; Brixel, Bernard; Giertzuch, Peter-Lasse; Doetsch, Joseph; Schopper, Florian; Dutler, Nathan; Villiger, Linus; Krietsch, Hannes; Gischig, Valentin; Valley, Benoît; Amann, Florian
Hydraulic Stimulation of Crystalline Rock – Grimsel Test Site
Jalali, Reza; Doetsch, Joseph; Gischig, Valentin; Krietsch, Hannes; Amann, Florian
On the variability of the seismic response during multiple decameter-scale hydraulic stimulations
Villiger, Linus; Selvadurai, Paul Antony; Gischig, Valentin; Doetsch, Joseph; Krietsch, Hannes; Dutler, Nathan; Jalali, Reza; Valley, Benoît; Amann, Florian; Wiemer, Stefan
Identification and Characterization of Natural and Stimulation Induced Flow Path between two Boreholes using Conductivity Logs
Dutler, Nathan; Brixel, Bernard; Jalali, Reza; Kittilä, Anniina; Amann, Florian; Valley, Benoît
A Multi-scale Approach toward understanding the Hydraulic Characteristics of the Stimulated Fractured Crystalline Rock
Jalali, Reza; Brixel, Bernard; Klepikova, Maria; Gischig, Valentin; Doetsch, Joseph; Amann, Florian
Small-scale Reservoir Stimulation Experiments in the Deep Underground Laboratory at the Grimsel Test Site
Gischig, Valentin; Doetsch, Joseph; Jalali, Reza; Madonna, Claudio; Ammann, Florian
Preliminary stress characterization for an in-situ stimulation experiment at the Grimsel Underground Laboratory
Krietsch, Hannes; Doetsch, Joseph; Gischig, Valentin; Amann, Florian; Jalali, Reza; Madonna, Claudio; Evans, Keith; Valley, Benoît; Giardini, Domenico; Wiemer, Stefan; Maurer, Hansruedi; Loew, Simon
Mechanical response of a decameter-scale reservoir during an in-situ hydraulic stimulation experiment
Krietsch, Hannes; Gischig, Valentin; Doetsch, Joseph; Valley, Benoît; Amman, Florian
Deformation and tilt measurements during the ISC experiment at the Grimsel Test Site
Krietsch, Hannes; Gischig, Valentin; Valley, Benoît; Amann, Florian
SCCER-SoE
A coupled fluid flow - seismicity model for real-time assessment of induced seismic hazard and reservoir creation
Gischig, Valentin; Doetsch, Joseph; Wiemer, Stefan
The deformation field in a rock mass during an in-situ hydraulic stimulation experiment
Krietsch, Hannes; Gischig, Valentin; Doetsch, Joseph; Valley, Benoît; Amman, Florian
Geothermal reservoir characterization through active thermal testing
Jung, Martin; Klepikova, Maria; Jalali, Reza; Fisch, Hansruedi; Loew, Simon; Amann, Florian
Characterizing fractures and shear zones in crystalline rock using anisotropic seismic inversion and GPR imaging
Doetsch, Joseph; Krietsch, Hannes; Lajaunie, Myriam; Jordi, Claudio; Gischig, Valentin; Schmelzbach, Cédric; Maurer, Hansruedi
The Grimsel in-situ stimulation project – on the seismo-hydromechanical response during hydraulic stimulation tests
Doetsch, Joseph; Amann, Florian; Gischig, Valentin; Jalali, Reza; Krietsch, Hannes; Villiger, Linus; Dutler, Nathan; Brixel, Bernard; Evans, Keith F.; Valley, Benoît; Wiemer, Stefan; Maurer, Hansruedi; Saar, Martin O.; Driesner, Thomas; Loew, Simon; Giardini, Domenico
An in-situ stimulation experiment in crystalline rock – assessment of induced seismicity levels during stimulation and related hazard for nearby infrastructure
Gischig, Valentin; Broccardo, Marco; Amann, Florian; Jalali, Reza; Esposito, Simona; Krietsch, Hannes; Doetsch, Joseph; Madonna, Claudio; Wiemer, Stefan; Loew, Simon; Giardini, Domenico
Induced micro-seismicity observed during meter-scale hydraulic-fracturing
Gischig, Valentin; Doetsch, Joseph; Villiger, Linus; Krietsch, Hannes; Maurer, Hansruedi; Amann, Florian; Jalali, Reza; Obermann, Anne; Wiemer, Stefan
Permeability Enhancement in Enhanced Geothermal System as a result of Hydraulic Fracturing and Jacking
Jalali, Reza; Klepikova, Maria; Fisch, Hansruedi; Amann, Florian; Loew, Simon
Observation of transient seismic velocity variations allow monitoring of field scale pressure changes during high-pressure fluid injection
Doetsch, Joseph; Gischig, Valentin; Villiger, Linus; Krietsch, Hannes; Amann, Florian; Jalali, Reza; Madonna, Claudio; Maurer, Hansruedi; Wiemer, Stefan; Giardini, Domenico
A Comparison of FBG- and Brillouin-Strain Sensing in the Framework of a Decameter-Scale Hydraulic Stimulation Experiment
Krietsch, Hannes; Gischig, Valentin; Jalali, Reza; Doetsch, Joseph; Valley, Benoît; Amann, Florian
A Multi-Scale Approach to Identify and Characterize Preferential Flow Paths in a Fractured Crystalline Rock
Jalali, Reza; Klepikova, Maria; Doetsch, Joseph; Krietsch, Hannes; Brixel, Bernard; Dutler, Nathan; Gischig, Valentin; Amann, Florian
Observations of Fracture Propagation During Decameter-Scale Hydraulic Fracturing Experiments
Dutler, Nathan; Valley, Benoît; Gischig, Valentin; Jalali, Reza; Doetsch, Joseph; Krietsch, Hannes; Villiger, Linus; Amann, Florian
Building a geological model for analysis and numerical modelling of hydraulic stimulation experiments
Krietsch, Hannes; Doetsch, Joseph; Gischig, Valentin; Jalali, Reza; Dutler, Nathan; Amann, Florian; Loew, Simon
Characterizing fractures and shear zones in crystalline rock using seismic and GPR methods
Doetsch, Joseph; Jordi, Claudio; Laaksonlaita, Niko; Gischig, Valentin; Schmelzbach, Cédric; Maurer, Hansruedi
Monitoring salt tracer transport in granite rock using ground penetrating radar reflection imaging
Giertzuch, Peter-Lasse; Doetsch, Joseph; Kittilä, Anniina; Jalali, Reza; Schmelzbach, Cédric; Maurer, Hansruedi; Shakas, Alexis
Background
The Grimsel ISC project (Demo-1) has been performed between 2014 and 2017 at the Grimsel Test Site by an interdisciplinary team of ETH Zurich and the University of Neuchâtel.
The primary goal is to improve our understanding of geomechanical processes underpinning permeability creation during hydraulic stimulation and related induced seismicity as well as to evaluate the efficiency of the generated underground heat exchanger.
Two hydraulic injection phases were executed to enhance the permeability of the rock mass. They were monitored at a high spatial and temporal resolution, including the following characteristics: rock mass deformation across fractures and within intact rock, pore pressure distribution and propagation as well as micro-seismic response.
A review of scientific research that addresses seismo-hydro-mechanical coupled processes relevant for the development of a sustainable heat exchanger in low permeability crystalline rock and an introduction to the ISC experiments has been published by Amann et al., 2018.