THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND
The Nesjavellir High Temperature Geothermal Field is located in the Northern part of the Hengill Geothermal Area, which has been estimated to be one of the largest geothermal areas in iceland. Drilling started at Nesjavellir some 20 years ago with five wells. In 1982 a renewed exploration phase bega...
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ftosti:oai:osti.gov:892131 2023-07-30T04:04:21+02:00 THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND Stefansson, V. 2006-12-29 application/pdf http://www.osti.gov/servlets/purl/892131 https://www.osti.gov/biblio/892131 unknown http://www.osti.gov/servlets/purl/892131 https://www.osti.gov/biblio/892131 15 GEOTHERMAL ENERGY 02 PETROLEUM CHEMICAL COMPOSITION DISTRIBUTION DRILLING ENTHALPY EXPLORATION GEOTHERMAL FIELDS GEOTHERMAL SYSTEMS ICELAND ORIGIN RESERVOIR ENGINEERING 2006 ftosti 2023-07-11T08:43:49Z The Nesjavellir High Temperature Geothermal Field is located in the Northern part of the Hengill Geothermal Area, which has been estimated to be one of the largest geothermal areas in iceland. Drilling started at Nesjavellir some 20 years ago with five wells. In 1982 a renewed exploration phase began and five additional wells have been drilled during the last three years. The pressure distribution within the geothermal system is very inhomogeneous in both horizontal and vertical directions. Variations in temperature are also considerable. The highest pressure and temperature is found in the southwestern part of the investigated area and both pressure and temperature decreases towards northeast. There seem to be four different zones of pressure potential in the system, which require the existence of both horizontal and vertical barriers in the system. Some parts of the geothermal system are in two-phase condition whereas other parts are in single phase liquid condition. The chemical composition of the fluid seem to be relatively uniform and a common origin of the fluid is assumed. The transmissivity of wells is in the range (1,3-3,5) 10{sup -8} m{sup 3}/Pa {center_dot} s whereas the flowing enthalpy ranges from 1200-2100 kJ/kg. The thermal output of wells are 40-60 MW. The geothermal system at Nesjavellir shows a high degree of three-dimensional variation, but a simple conceptual model described in the paper, seem to be in agreement with all observation made so far in the field. Other/Unknown Material Iceland SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Hengill ENVELOPE(-21.306,-21.306,64.078,64.078) Nesjavellir ENVELOPE(-21.251,-21.251,64.115,64.115) |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
15 GEOTHERMAL ENERGY 02 PETROLEUM CHEMICAL COMPOSITION DISTRIBUTION DRILLING ENTHALPY EXPLORATION GEOTHERMAL FIELDS GEOTHERMAL SYSTEMS ICELAND ORIGIN RESERVOIR ENGINEERING |
spellingShingle |
15 GEOTHERMAL ENERGY 02 PETROLEUM CHEMICAL COMPOSITION DISTRIBUTION DRILLING ENTHALPY EXPLORATION GEOTHERMAL FIELDS GEOTHERMAL SYSTEMS ICELAND ORIGIN RESERVOIR ENGINEERING Stefansson, V. THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND |
topic_facet |
15 GEOTHERMAL ENERGY 02 PETROLEUM CHEMICAL COMPOSITION DISTRIBUTION DRILLING ENTHALPY EXPLORATION GEOTHERMAL FIELDS GEOTHERMAL SYSTEMS ICELAND ORIGIN RESERVOIR ENGINEERING |
description |
The Nesjavellir High Temperature Geothermal Field is located in the Northern part of the Hengill Geothermal Area, which has been estimated to be one of the largest geothermal areas in iceland. Drilling started at Nesjavellir some 20 years ago with five wells. In 1982 a renewed exploration phase began and five additional wells have been drilled during the last three years. The pressure distribution within the geothermal system is very inhomogeneous in both horizontal and vertical directions. Variations in temperature are also considerable. The highest pressure and temperature is found in the southwestern part of the investigated area and both pressure and temperature decreases towards northeast. There seem to be four different zones of pressure potential in the system, which require the existence of both horizontal and vertical barriers in the system. Some parts of the geothermal system are in two-phase condition whereas other parts are in single phase liquid condition. The chemical composition of the fluid seem to be relatively uniform and a common origin of the fluid is assumed. The transmissivity of wells is in the range (1,3-3,5) 10{sup -8} m{sup 3}/Pa {center_dot} s whereas the flowing enthalpy ranges from 1200-2100 kJ/kg. The thermal output of wells are 40-60 MW. The geothermal system at Nesjavellir shows a high degree of three-dimensional variation, but a simple conceptual model described in the paper, seem to be in agreement with all observation made so far in the field. |
author |
Stefansson, V. |
author_facet |
Stefansson, V. |
author_sort |
Stefansson, V. |
title |
THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND |
title_short |
THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND |
title_full |
THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND |
title_fullStr |
THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND |
title_full_unstemmed |
THE NESJAVELLIR HIGH TEMPERATURE GEOTHERMAL FIELD IN ICELAND |
title_sort |
nesjavellir high temperature geothermal field in iceland |
publishDate |
2006 |
url |
http://www.osti.gov/servlets/purl/892131 https://www.osti.gov/biblio/892131 |
long_lat |
ENVELOPE(-21.306,-21.306,64.078,64.078) ENVELOPE(-21.251,-21.251,64.115,64.115) |
geographic |
Hengill Nesjavellir |
geographic_facet |
Hengill Nesjavellir |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
http://www.osti.gov/servlets/purl/892131 https://www.osti.gov/biblio/892131 |
_version_ |
1772815722838228992 |