A 9-hour circulation test that followed stimulation proved fluid flow and energy transfer from an EGS reservoir in hot dry granite …
Direct use
The utilization of geothermal heat as an energy resource, e.g., to heat (or cool) a building such as a greenhouse, for drying, for manufacturing.
Geothermal Glossary
Word of the Week – Dolomite
Dolomite A carbonate mineral similar to calcite in which magnesium partially substitutes for calcium.
Word of the Week – Drill Bit
Drill Bit A tool that is placed on the end of a string of pipe to drill a well. Rotary drill bits are commonly used in oil and gas and geothermal drilling. Coring bits are used to obtain cylindrical core samples of rock that preserve mineralogical and textural...
Word of the Week – Drill Core
Drill Core Intact cylindrical shaped sample of rock obtained during drilling with a special coring bit. Although commonly narrow in diameter (e.g., 1-4" or 25-100 mm), it preserves a geological record that makes it possible to interpret the sequence of mineral...