The world's primary energy requirements are supplied to a large extent by non-renewable
energy resources, which has resulted in significant anthropogenic greenhouse gas …

Terra Nova, 23, 145–161, 2011 Abstract The hydrogeology of superficial (∼ 0–100 m bgl)
Hard Rock Aquifers (HRA; ie plutonic and metamorphic rocks) has so far been dominated by …

Heat extraction mode, eg well layout or arrangement of wells, of enhanced or engineered
geothermal system (EGS) is crucial to its performance and directly affects its commercial …

In enhanced geothermal systems (EGS), the natural permeability of deep rocks is normally
not high enough and needs to be increased. Permeability increase can be achieved through …

Deep geothermal energy represents a key element of future renewable energy production
due to its base load capability and the almost inexhaustible resource base. Especially with …

Injection-induced shear stimulation (commonly known as 'hydro-shearing') is often
implemented in Enhanced Geothermal Systems (EGS) to enhance the reservoir …

The classical concept of hydraulic fracturing is that large, wing-shaped tensile fractures
propagate away from the wellbore. However, in low matrix permeability settings such as …

Fractal-geometry techniques are widely applied to the quantification of complex rock
structures. Important properties of such structures are (i) different scaling behaviour on …

Geothermal projects in the Upper Rhine Graben aim to harness thermal anomalies that have
arisen due to hydrothermal circulation within the granitic basement and the overlying Permo …

Our study investigates the genesis of granitic reservoirs formed within a brittle shear zone in
central Finland, evaluating their feasibility as deep geothermal targets. We employ a suite of …