Induced seismicity associated with fluid injection into underground formations jeopardizes
the sustainable utilization of the subsurface. Understanding the fault behavior is the key to …

Using an innovative experimental set-up (Punch-Through Shear test), we initiated a shear
zone (microfault) in Flechtingen sandstone and Odenwald granite under in situ reservoir …

Fault zones often serve as the major fluid pathways in a variety of geo-energy systems, such
as deep geothermal systems. However, injection-induced instability of faults can sometimes …

The accurate evaluation of pore pressure and injected volume is crucial for the laboratory
characterization of hydromechanical responses of rock fractures. This study reports a series …

Fault zones are key features in crystalline geothermal reservoirs or in other subsurface
environments due to the fact that they act as main fluid pathways. An adequate experimental …

Understanding the coupling between rock permeability, pore pressure, and fluid flow is
crucial, as fluids play an important role in the Earth's crustal dynamics. We measured the …

Studies on the mechanical behaviour of rocks, including volcanic rocks, usually seek for
unaltered and simple material: rocks without macroscopic defects. However, volcanic rocks …

Injecting large amounts of fluid into the ground is an inevitable step in many subsurface
energy extraction operations and has the potential risk of inducing fault activation. The …

We present a new type of transducer capable of measuring local pore fluid pressure in
jacketed rock samples under elevated confining pressure conditions. The transducers are …

Pore fluid significantly affects the mechanical property of rocks. To understand the effect of
heterogeneous distribution of pore water with high pressure, two partly saturated specimens …