A 9-hour circulation test that followed stimulation proved fluid flow and energy transfer from an EGS reservoir in hot dry granite …
Liquid-Dominated Reservoir
Typical of the large proportion of conventional geothermal resources in which wells are self-flowing or pumped depending on reservoir temperature. Self-flowing wells produce a mixture of steam and hot water from reservoirs that are close to boiling point or vapor-saturation. Pumped wells produce hot water only from reservoirs that are well below boiling temperature.
Geothermal Glossary
Word of the Week – Diorite
Diorite Dark colored, coarse grained, intrusive rock that contains less silica than granite and that is mostly made of plagioclase, biotite, hornblende, pyroxene, and minor to nil quartz.
Word of the Week – Direct Use
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.
Word of the Week – Directional Drilling
Directional Drilling The practice of steering the trajectory of a well during drilling from vertical to a deviated angle, including horizontal drilling used for oil and gas production from poorly permeable rocks. Directional drilling may also be used to maneuver...