A5033989451- Seismic Imaging and Inversion Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Groundwater flow and contamination studies
- Geophysical Methods and Applications
- Drilling and Well Engineering
- Seismic Waves and Analysis
- Seismology and Earthquake Studies
- Geothermal Energy Systems and Applications
- earthquake and tectonic studies
- Geophysical and Geoelectrical Methods
- Rock Mechanics and Modeling
- CO2 Sequestration and Geologic Interactions
- Peatlands and Wetlands Ecology
- Methane Hydrates and Related Phenomena
- Integrated Water Resources Management
- Reservoir Engineering and Simulation Methods
- Flow Measurement and Analysis
- Landslides and related hazards
- Climate change and permafrost
- Hydrocarbon exploration and reservoir analysis
- Coastal wetland ecosystem dynamics
- Geology and Paleoclimatology Research
- Cavitation Phenomena in Pumps
- Advanced Fiber Optic Sensors
- Enhanced Oil Recovery Techniques
ETH Zurich
2017-2025
Federal Office for the Environment
2025
McGill University
2010
Abstract. In this contribution, we present a review of scientific research results that address seismo-hydromechanically coupled processes relevant for the development sustainable heat exchanger in low-permeability crystalline rock and introduce design situ Stimulation Circulation (ISC) experiment at Grimsel Test Site dedicated to studying such under controlled conditions. The shows on reservoir stimulation deep geothermal energy exploitation has been largely based laboratory observations,...
Abstract New in situ measurements to constrain the range, distribution, and spatial (meter‐scale) variations of permeability shallow crustal fault zones are reported based on systematic downhole tests at 0.5‐km depth crystalline rock. Single cross‐hole hydraulic packer were performed a new dedicated test facility hosted Grimsel Test Site, Swiss Alps, following technical instrumentation isolation discrete accessed by an array boreholes. Single‐hole results presented this paper, while...
Accessing the deep terrestrial subsurface (greater than 1 km below surface) presents significant practical challenges, leaving these ecosystems largely uncharacterized despite their extensive presence beneath Earth's landmasses. In this study, we introduce BedrettoLab Deep Life Observatory (DELOS), a new underground laboratory to study biogeochemical diversity of groundwater in high-altitude Alpine catchment tens meters 1.6 underground. Biogeochemical monitoring DELOS over spatial and...
Abstract Cross‐hole fluid injection tests were performed on shallow (0.5 km depth) crustal fault zones to characterize their internal flow structures scales of 3–30 m. The data acquired at the Grimsel Rock Laboratory, Switzerland, after zonal isolation damage in boreholes equipped with multipacker systems. We show that 80% pressure responses detected evolved as a power function time due fracture‐controlled and best described by fractional model dimension ( n ) range [1.3,1.5]. scaling...
Abstract. As part of the In-situ Stimulation and Circulation (ISC) experiment, hydraulic fracturing (HF) tests were conducted in a moderately fractured crystalline rock mass at Grimsel Test Site (GTS), Switzerland. The aim these injection was to improve our understanding processes associated with high-pressure fluid injection. A total six HF experiments performed two inclined boreholes; surrounding accessed 12 observation boreholes, which allows for high-resolution monitoring fracture...
Six hydraulic fracturing (HF) experiments were conducted in situ at the Grimsel Test Site (GTS), Switzerland, using two boreholes drilled sparsely fractured crystalline rock. High spatial and temporal resolution monitoring of fracture fluid pressure strain improve our understanding dynamics during directly following high-pressure injection. In three out six experiments, a shear-thinning with an initial static viscosity approximately 30 times higher than water was used to understand...
Abstract Temporal changes in groundwater chemistry can reveal information about the evolution of flow path connectivity during crustal deformation. Here, we report transient helium and argon concentration anomalies monitored a series hydraulic reservoir stimulation experiments measured with an situ gas equilibrium membrane inlet mass spectrometer. Geodetic seismic analyses revealed that applied treatments led to formation new fractures (hydraulic fracturing) reactivation natural shearing),...
Abstract We monitored the seismohydromechanical rock mass response to high‐pressure fluid injection during a decameter‐scale hydraulic stimulation experiment in crystalline at Grimsel Test Site, Switzerland. Time series recorded two pressure monitoring locations show abrupt increases that change amplitude and appearance between subsequent cycles. Induced seismicity correlates with propagation of one these fronts. Deformation data along same shear zone shows permanent fracture dislocation...
Abstract. Two borehole ground-penetrating radar (GPR) surveys were conducted during saline tracer injection experiments in fully saturated crystalline rock at the Grimsel Test Site Switzerland. The is characterized by an increased electrical conductivity comparison to formation water. It was injected under steady-state flow conditions into mass that features sub-millimeter fracture apertures. GPR designed as time-lapse reflection from separate boreholes and a transmission survey between two...
Abstract. In this contribution we present a review of scientific research results that address seismo-hydro-mechanical coupled processes relevant for the development sustainable heat exchanger in low permeability crystalline rock and introduce design In-situ Stimulation Circulation (ISC) experiment at Grimsel Test Site dedicated to study such under controlled conditions. The shows on reservoir stimulation deep geothermal energy exploitation has been largely based laboratory observations,...
Solute tracer tests are an established method for the characterization of flow and transport processes in fractured rock. Such often monitored with borehole sensors which offer high temporal sampling signal to noise ratio, but only limited spatial deployment possibilities. Ground penetrating radar (GPR) is sensitive electromagnetic properties, can thus be used monitor behavior electrically conductive tracers. Since GPR waves sample large volumes that practically inaccessible by traditional...