Announcing SSA session De-risking Deep Geothermal Projects: Geophysical Monitoring and Forecast...

Porous and permeable rock unit or unconsolidated layer in the subsurface in which all the pores and voids are filled with water. Water supply for wells comes from aquifers.
Hot Dry Rock Hot crystalline rock with essentially no porosity and lacking producible hot water. Geothermal production from hot dry rock reservoirs is the primary goal of EGS (enhanced geothermal system) research in which cold water is injected and hot fluid is...
Hydraulic Fracture A rock-hosted tensile fracture that is created by injection of fluid under high pressure.
Hydraulic Gradient The slope on the water table which promotes horizontal fluid flow in permeable rock units.