Anthropogenic operations involving underground fluid extraction or injection can cause
unexpectedly large and even damaging earthquakes, despite operational and regulatory …

The basic triggering mechanism underlying induced seismicity traces back to the mid‐1960s
that relied on the process of pore‐fluid pressure diffusion. The last decade has experienced …

We develop a fully-coupled hydro-mechanical model to simulate fluid injection-induced
activation of pre-existing fractures, propagation of new damages, development of seismic …

This paper presents experimental results on the anisotropy of the fracture toughness,
Brazilian tensile strength, and the fracture process zone (FPZ) in granodiorite samples. The …

The recent growth in energy technologies and the management of subsurface reservoirs has
led to increased human interaction with the Earth's crust. One consequence of this is the …

We performed a series of hydraulic stimulations at 1.1 km depth in the Bedretto underground
laboratory, Switzerland, as part of an overall research strategy attempting to understand …

The increasing demand for energy makes it difficult to replace fossil fuels with low-carbon
energy sources in the short term, and the large amount of CO 2 emitted by fossil fuel …

The history of reservoir stimulation to extract geothermal energy from low permeability rock
(ie so-called petrothermal or engineered geothermal systems, EGS) highlights the difficulty …

Experimental and theoretical analyses are presented that assess true mode II fracture
toughness, K IIc, fracture energy, G IIc, and associated fracture process zone (FPZ) in …

This paper presents the results of 124 pure Mode I fracture toughness tests on two types of
anisotropic rocks, the metamorphic Grimsel Granite and the sedimentary Mont Terri …