TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A potential source of heat energy within the Earth’s crust: rocks at depths less than 10 km and at temperatures above 150°C.  1, record 1, English, - hot%20dry%20rock

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

[...] massif granitique où la température ambiante est d'environ 170 °C.  1, record 1, French, - roche%20chaude%20s%C3%A8che

Record number: 1, Textual support number: 1 OBS

L'utilisation des roches chaudes sèches, ou procédé RCS, est une source d'énergie calorifique.  4, record 1, French, - roche%20chaude%20s%C3%A8che

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Energy obtained, in the form of heat, from the depths of the earth.  2, record 2, English, - geothermal%20energy

Record number: 2, Textual support number: 1 CONT

Geothermal energy [means] heat generated by natural processes within the earth. Chief energy resources are hot dry rock, magma(molten rock), hydrothermal(water/steam from geysers and fissures and geopressure(water saturated with methane under tremendous pressure at great depths).  3, record 2, English, - geothermal%20energy

Record number: 2, Textual support number: 1 OBS

This heat may sometimes be harnessed, through the medium of hot water and steam, for heating and other purposes.  2, record 2, English, - geothermal%20energy

Record number: 2, Textual support number: 2 OBS

Today geothermal energy is basically used to supply heat energy, generate electric energy and for balneological and recreational purposes.  4, record 2, English, - geothermal%20energy

Record number: 2, Textual support number: 3 OBS

geothermal energy: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 2, English, - geothermal%20energy

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Énergie obtenue [...] de la chaleur des couches profondes de la terre.  3, record 2, French, - %C3%A9nergie%20g%C3%A9othermique

Record number: 2, Textual support number: 1 CONT

L'énergie géothermique est constituée par les eaux chaudes ou la vapeur des nappes souterraines à grande profondeur ou par celle des geysers; elle est surtout utilisable dans les régions volcaniques, à relief tourmenté, où l'eau très chaude peut être exploitée à profondeur réduite.  4, record 2, French, - %C3%A9nergie%20g%C3%A9othermique

Record number: 2, Textual support number: 1 OBS

énergie géothermique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  5, record 2, French, - %C3%A9nergie%20g%C3%A9othermique

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Energía procedente de la utilización del calor existente en el interior de la Tierra.  2, record 2, Spanish, - energ%C3%ADa%20geot%C3%A9rmica

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Hot dry rock process(petrophysical systems). Hot rock layers at a depth of 4, 000 to 7, 000 meters are used with this new system which has not yet been fully developed. Water is pressed into the hot rock via a borehole and the heated water is then fed back to the surface and used to supply heat or produce electricity.  5, record 3, English, - hot%20dry%20rock%20process

Record number: 3, Textual support number: 2 CONT

In order to be able to gain heat from the deep, crystalline rockbeds, the so-called hot-dry-rock technique was developed.  4, record 3, English, - hot%20dry%20rock%20process

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

[Technique dans laquelle] de l'eau froide est injectée dans un puits de 1 900 mètres de profondeur aboutissant dans un massif granitique où la température ambiante est d'environ 170 °C. L'eau est conduite par un réseau de fractures en pente jusqu'à un puits plus profond où les infiltrations sont pompées. La vapeur d'eau récupérée est à une température moyenne de 150 °C. Elle est alors traitée pour être distribuée dans les foyers avoisinants, à des fins de consommation courante [...]  1, record 3, French, - proc%C3%A9d%C3%A9%20RCS

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

... another possible way of creating permeability in hot dry rocks is «impact fracturing». This method... [may be described in its principle. ] A bore, cased except near the lower extremity, is surmounted by a hydraulic accumulator, filled with water and pressurized by means of a pump until the accumulator weight is lifted. The lifting pressure should be perhaps about 90% of the estimated hydro-fracturing pressure. A dynamic blow would then be struck upon the top of the water column by means of some device resembling a pile-driver, so that shock waves would travel to the base of the bore and be reflected up and down at attenuating intensity. Very high instantaneous pressures would be generated which would fracture the rock, and it is expected that the steepness of the pressure rise would be such as to resemble explosive action, so that the «star» formation... would be produced.  1, record 4, English, - impact%20fracturing

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Conductive geothermal systems are characterized by a thermal regime due to conduction alone, often in the steady state. The working fluid is either present(e. g. in geopressurized systems) or must be supplied(Hot Dry Rock Systems).  1, record 5, English, - conductive%20geothermal%20system

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish