Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities
© 2017, The Author(s). Supercritical geothermal systems are very high-temperature geothermal systems that are located at depths near or below the brittle–ductile transition zone in the crust where the reservoir fluid is assumed to be in the supercritical state, that is for pure water, temperature an...
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ftcdlib:qt9j59j0gn 2023-05-15T16:48:43+02:00 Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities Reinsch, T Dobson, P Asanuma, H Huenges, E Poletto, F Sanjuan, B 2017-12-01 application/pdf http://www.escholarship.org/uc/item/9j59j0gn english eng eScholarship, University of California qt9j59j0gn http://www.escholarship.org/uc/item/9j59j0gn public Reinsch, T; Dobson, P; Asanuma, H; Huenges, E; Poletto, F; & Sanjuan, B. (2017). Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities. Geothermal Energy, 5(1). doi:10.1186/s40517-017-0075-y. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/9j59j0gn article 2017 ftcdlib https://doi.org/10.1186/s40517-017-0075-y 2018-11-02T23:53:38Z © 2017, The Author(s). Supercritical geothermal systems are very high-temperature geothermal systems that are located at depths near or below the brittle–ductile transition zone in the crust where the reservoir fluid is assumed to be in the supercritical state, that is for pure water, temperature and pressure are, respectively, in excess of 374 °C and 221 bar. These systems have garnered attention in recent years as a possible type of unconventional geothermal resource due to their very high enthalpy fluids. Supercritical conditions are often found at the roots of volcanic-hosted hydrothermal systems. More than 25 deep wells drilled in geothermal fields such as The Geysers, Salton Sea, and on Hawaii (USA), Kakkonda (Japan), Larderello (Italy), Krafla (Iceland), Los Humeros (Mexico), and Menengai (Kenya) have encountered temperatures in excess of 374 °C, and in some cases have encountered magma. Although fluid entries were documented for some of these wells, it remains an open question if permeability can be maintained at high enthalpy conditions. The IDDP-1 well at Krafla encountered magma, and ended up producing very high enthalpy fluids; however, these fluids were very corrosive and abrasive. Innovative drilling and well completion techniques are therefore needed to deal with the extreme temperatures and aggressive fluid chemistry compositions of these systems. New efforts are underway in Japan (northern Honshu), Italy (Larderello), Iceland (Reykjanes peninsula and Krafla), Mexico (Los Humeros), USA (Newberry), and New Zealand (Taupo Volcanic Zone) to investigate supercritical systems. Here, we review past studies, describe current research efforts, and outline the challenges and potential opportunities that these systems provide for international collaboration to ultimately utilize supercritical geothermal systems as a geothermal energy resource. Article in Journal/Newspaper Iceland University of California: eScholarship Krafla ENVELOPE(-16.747,-16.747,65.713,65.713) New Zealand Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Geothermal Energy 5 1 |
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Open Polar |
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University of California: eScholarship |
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English |
description |
© 2017, The Author(s). Supercritical geothermal systems are very high-temperature geothermal systems that are located at depths near or below the brittle–ductile transition zone in the crust where the reservoir fluid is assumed to be in the supercritical state, that is for pure water, temperature and pressure are, respectively, in excess of 374 °C and 221 bar. These systems have garnered attention in recent years as a possible type of unconventional geothermal resource due to their very high enthalpy fluids. Supercritical conditions are often found at the roots of volcanic-hosted hydrothermal systems. More than 25 deep wells drilled in geothermal fields such as The Geysers, Salton Sea, and on Hawaii (USA), Kakkonda (Japan), Larderello (Italy), Krafla (Iceland), Los Humeros (Mexico), and Menengai (Kenya) have encountered temperatures in excess of 374 °C, and in some cases have encountered magma. Although fluid entries were documented for some of these wells, it remains an open question if permeability can be maintained at high enthalpy conditions. The IDDP-1 well at Krafla encountered magma, and ended up producing very high enthalpy fluids; however, these fluids were very corrosive and abrasive. Innovative drilling and well completion techniques are therefore needed to deal with the extreme temperatures and aggressive fluid chemistry compositions of these systems. New efforts are underway in Japan (northern Honshu), Italy (Larderello), Iceland (Reykjanes peninsula and Krafla), Mexico (Los Humeros), USA (Newberry), and New Zealand (Taupo Volcanic Zone) to investigate supercritical systems. Here, we review past studies, describe current research efforts, and outline the challenges and potential opportunities that these systems provide for international collaboration to ultimately utilize supercritical geothermal systems as a geothermal energy resource. |
format |
Article in Journal/Newspaper |
author |
Reinsch, T Dobson, P Asanuma, H Huenges, E Poletto, F Sanjuan, B |
spellingShingle |
Reinsch, T Dobson, P Asanuma, H Huenges, E Poletto, F Sanjuan, B Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
author_facet |
Reinsch, T Dobson, P Asanuma, H Huenges, E Poletto, F Sanjuan, B |
author_sort |
Reinsch, T |
title |
Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
title_short |
Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
title_full |
Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
title_fullStr |
Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
title_full_unstemmed |
Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
title_sort |
utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
http://www.escholarship.org/uc/item/9j59j0gn |
long_lat |
ENVELOPE(-16.747,-16.747,65.713,65.713) ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Krafla New Zealand Reykjanes |
geographic_facet |
Krafla New Zealand Reykjanes |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Reinsch, T; Dobson, P; Asanuma, H; Huenges, E; Poletto, F; & Sanjuan, B. (2017). Utilizing supercritical geothermal systems: a review of past ventures and ongoing research activities. Geothermal Energy, 5(1). doi:10.1186/s40517-017-0075-y. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/9j59j0gn |
op_relation |
qt9j59j0gn http://www.escholarship.org/uc/item/9j59j0gn |
op_rights |
public |
op_doi |
https://doi.org/10.1186/s40517-017-0075-y |
container_title |
Geothermal Energy |
container_volume |
5 |
container_issue |
1 |
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1766038795126308864 |