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  2. Geothermal energy - Wikipedia

    en.wikipedia.org/wiki/Geothermal_energy

    A geothermal well was used to heat greenhouses in Boise in 1926, ... Upper estimates of geothermal resources assume wells as deep as 10 kilometres (6 mi), ...

  3. Geothermal power - Wikipedia

    en.wikipedia.org/wiki/Geothermal_power

    Upper estimates of geothermal resources assume wells as deep as 10 km (6.2 mi). Drilling near this depth is now possible in the petroleum industry, although it is an expensive process. The deepest research well in the world, the Kola Superdeep Borehole (KSDB-3), is 12.261 km (7.619 mi) deep. [21] Wells drilled to depths greater than 4 km (2.5 ...

  4. Iceland Deep Drilling Project - Wikipedia

    en.wikipedia.org/wiki/Iceland_Deep_Drilling_Project

    The Iceland Deep Drilling Project (IDDP) is a geothermal project established in 2000 by a consortium of the National Energy Authority of Iceland (Orkustofnun/OS) and four of Iceland's leading energy companies: Hitaveita Suðurnesja (HS), Landsvirkjun, Orkuveita Reykjavíkur and Mannvit Engineering. The consortium is referred to as "Deep Vision".

  5. Geothermal exploration - Wikipedia

    en.wikipedia.org/wiki/Geothermal_Exploration

    Geothermal exploration wells rarely exceed 4 km in depth. Subsurface materials associated with geothermal fields range from limestone to shale , volcanic rocks and granite . [ 1 ] Most drilled geothermal exploration wells, up to the production well, are still considered to be within the exploration phase.

  6. United Downs Deep Geothermal Power - Wikipedia

    en.wikipedia.org/wiki/United_Downs_Deep...

    The geothermal production well reached a depth of 5,275 m (17,306 ft) and the fluid injection well 2,393 m (7,851 ft). [ 3 ] [ 1 ] Between August 2020 and July 2021, the wells underwent a series of injection tests to analyse the hydrology within the fractured geothermal reservoir.

  7. Enhanced geothermal system - Wikipedia

    en.wikipedia.org/wiki/Enhanced_geothermal_system

    United Downs Deep Geothermal Power is the United Kingdom's first geothermal electricity project. ... A test well was to be drilled in spring of 2021, at a depth of 2. ...

  8. Rosemanowes Quarry - Wikipedia

    en.wikipedia.org/wiki/Rosemanowes_Quarry

    All the deep boreholes are now available to hire for a range of down hole testing. There are three deep boreholes (2,350 m (7,710 ft), 2,180 m (7,150 ft), 2,800 m (9,200 ft)), four uncased 300 m (980 ft) holes and one 150 m (490 ft) hole inclined at 30 degrees, as well as micro seismic testing and a wind turbine test environment on this 20 ...

  9. Geothermal heating - Wikipedia

    en.wikipedia.org/wiki/Geothermal_heating

    A deep geothermal well was used to heat greenhouses in Boise in 1926, and geysers were used to heat greenhouses in Iceland and Tuscany at about the same time. [21] Charlie Lieb developed the first downhole heat exchanger in 1930 to heat his house. Steam and hot water from the geysers began to be used to heat homes in Iceland in 1943.