At the Core – October 2021 Keep up to date on what is going on at Utah FORGE. Read about it in the...
Mineral Geothermometer
A secondary mineral phase whose stability is defined by a lower and sometimes an upper temperature threshold. Common mineral geothermometers comprise clays, zeolites and epidote, with crystal structures that contain a hydroxyl (OH–) or water (H2O) molecule. The temperature ranges of mineral geothermometers are calibrated from investigations of a large number of drilled geothermal resources where mineral zonations and temperature gradients have been determined.
Geothermal Glossary
Word of the Week – Peak Load Generation
Peak Load Generation The amount of power required to maintain an electric grid for short-lived periods (e.g., morning, late afternoon and evening) in response to high demand. Thermal power plants that burn natural gas and hydroelectric dams are two common modes of...
Word of the Week – Perforation
Perforation The process of punching holes through the steel casing liner in a well in order to inject fluid into or produce fluid out of the reservoir rock. Perforations are achieved through deployment of a perforation gun, which is a string of explosive charges.
Word of the Week – Piezometric Surface
Piezometric Surface The imaginary surface to which groundwater rises under hydrostatic pressure in wells or springs.