Did you know… Alaska uses geothermal energy to produce electricity? It might seem highly unlikely...

Diagnostic Fracture Injection Test. A subsurface well test in which pressure is monitored as a small volume of fluid is injected into a reservoir to develop a hydraulic fracture. Monitoring continues to produce a pressure versus time plot that is analyzed to determine reservoir properties, formation pressure, and stress regime.
Scale Refers to deposition of minerals (e.g., calcite, silica, anhydrite, clays) in the well and reservoir that reduce permeability and block fluid channels.
Seismometer An instrument that records ground movement most often caused by earthquakes, volcanic eruptions and quarry or mine blasts. Short period seismometers detect seismic events that occur within a few hundred kilometers, whereas broadband seismometers detect...
Shear Fracture A pre-existing joint or fracture that accommodates shear displacement due to frictional slippage, wherein the rough surfaces on the fracture surface create permeability due to self propping.