Global efforts to tame CO2 emissions include the use of renewable energy sources, such as
geo-energy harnessing. However, injecting pressurised fluids into the deep underground …

Here, we proposed an analytical model for quantifying the intriguing size-dependent tensile
strength of polycrystalline rock, ie first ascending then descending with the increase of …

Highlights Anapparatus with precise controllability and large stiffness was designed to
investigate the mechanical behavior of rock grain interface. The fracture toughness and …

The study of macroscopic and microscopic fracture behaviour and tensile strength evolution
of anisotropic rock mass at high temperatures are of great significance to evaluation of …

The success of multi-stage hydraulic fracturing technology in unconventional oil and gas
reservoir development has attracted much attention from the geothermal community. Some …

Accurately and quantitatively investigating the progression of macro failure cracks in thermal
storage rock masses is crucial to ensuring the safe operation of enhanced geothermal …

We study fracture activation and induced seismicity during the long-term heat production of
fractured geothermal reservoirs. The fracture system is modeled by the discrete fracture …

In this study, we present results of an in situ stress state estimation for the Los Humeros
geothermal field (Mexico) located in the eastern section of the Trans-Mexican Volcanic Belt …

Modelling geothermal reservoirs is challenging due to the large domain and wide range of
length-and time-scales of interest. Attempting to represent all scales using a fixed …

Fluids are often injected into tight geothermal reservoirs to create conductive fractures and
enhance reservoir productivity. Mineral veins are ubiquitous in reservoir rocks because of …