Abstract
The paper surveys and arranges the present status, the problems, and the status of technical development in the investigation and the drilling and production technology required for development of deep geothermal resources which are promising as a resource having a high early-stage realizability, to make elements of the future technical development clear. Deep geothermal resources are defined to exist in basement rocks or intrusive rocks at the depth of 2,000m or more, and Kakkonda, Mori and Sumikawa geothermal fields are cited as examples for survey. As a result, it is confirmed that the investigation utilizing geothermal wells is effective to grasp the actual state of the deep geothermal resources. As to the drilling and production technology, the following environmental conditions are set as a target. Deep geothermal reservoirs are low in permeability as compared with shallow geothermal reservoirs. The temperature of the reservoirs reaches more than 300-350{degree}C. Deep geothermal reservoirs are high in acidity, compared with shallow ones, which predicts a high acid environment (approximately PH3). Since the wells necessarily get deeper and higher in temperature, improvement should naturally be made on well drilling, logging and production technologies developed in the shallow geothermal development, so that those technologies can be
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Citation Formats
None.
Survey on deep seated geothermal resource:drilling and production technology; Shinbu chinetsu shigen chosa:saishu gijutsu ni kansuru chosa.
Japan: N. p.,
1992.
Web.
None.
Survey on deep seated geothermal resource:drilling and production technology; Shinbu chinetsu shigen chosa:saishu gijutsu ni kansuru chosa.
Japan.
None.
1992.
"Survey on deep seated geothermal resource:drilling and production technology; Shinbu chinetsu shigen chosa:saishu gijutsu ni kansuru chosa."
Japan.
@misc{etde_10125747,
title = {Survey on deep seated geothermal resource:drilling and production technology; Shinbu chinetsu shigen chosa:saishu gijutsu ni kansuru chosa}
author = {None}
abstractNote = {The paper surveys and arranges the present status, the problems, and the status of technical development in the investigation and the drilling and production technology required for development of deep geothermal resources which are promising as a resource having a high early-stage realizability, to make elements of the future technical development clear. Deep geothermal resources are defined to exist in basement rocks or intrusive rocks at the depth of 2,000m or more, and Kakkonda, Mori and Sumikawa geothermal fields are cited as examples for survey. As a result, it is confirmed that the investigation utilizing geothermal wells is effective to grasp the actual state of the deep geothermal resources. As to the drilling and production technology, the following environmental conditions are set as a target. Deep geothermal reservoirs are low in permeability as compared with shallow geothermal reservoirs. The temperature of the reservoirs reaches more than 300-350{degree}C. Deep geothermal reservoirs are high in acidity, compared with shallow ones, which predicts a high acid environment (approximately PH3). Since the wells necessarily get deeper and higher in temperature, improvement should naturally be made on well drilling, logging and production technologies developed in the shallow geothermal development, so that those technologies can be applicable to the above-mentioned environment, and new technical problems to be solved will also arise. 128 refs., 180 figs., 57 tabs.}
place = {Japan}
year = {1992}
month = {Mar}
}
title = {Survey on deep seated geothermal resource:drilling and production technology; Shinbu chinetsu shigen chosa:saishu gijutsu ni kansuru chosa}
author = {None}
abstractNote = {The paper surveys and arranges the present status, the problems, and the status of technical development in the investigation and the drilling and production technology required for development of deep geothermal resources which are promising as a resource having a high early-stage realizability, to make elements of the future technical development clear. Deep geothermal resources are defined to exist in basement rocks or intrusive rocks at the depth of 2,000m or more, and Kakkonda, Mori and Sumikawa geothermal fields are cited as examples for survey. As a result, it is confirmed that the investigation utilizing geothermal wells is effective to grasp the actual state of the deep geothermal resources. As to the drilling and production technology, the following environmental conditions are set as a target. Deep geothermal reservoirs are low in permeability as compared with shallow geothermal reservoirs. The temperature of the reservoirs reaches more than 300-350{degree}C. Deep geothermal reservoirs are high in acidity, compared with shallow ones, which predicts a high acid environment (approximately PH3). Since the wells necessarily get deeper and higher in temperature, improvement should naturally be made on well drilling, logging and production technologies developed in the shallow geothermal development, so that those technologies can be applicable to the above-mentioned environment, and new technical problems to be solved will also arise. 128 refs., 180 figs., 57 tabs.}
place = {Japan}
year = {1992}
month = {Mar}
}