Deep Geothermal Resources Survey Project in the Kakkonda Geothermal Field

Uchida, Toshihiro; Akaku, Kohei; Yanagisawa, Norio; Kamenosono, Hiroyuki; Sasaki, Mitsuru; Miyazaki, Shuichi; Doi, Nobuo

doi:10.1080/00908319808970096

Cited by 5 publications

(8 citation statements)

References 1 publication

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“…The tube/soil temperatures obtained from this study (-1.3 ~ 14.8 o C) are lower than the value of 501 o C reported by Uchida et al [13] for the soil temperature in Japan, the value of 329.8 o C reported by Huang and Zhi [5] for that in China, the values of 193-240 o C reported by Cerci [14] and Ozturk et al [15] for those in Turkey, the values of 90 ~ 93 o C reported by Ozgener and Kocer [7] for the ones in Turkey, and the values of 40 ~ 82 o C reported by Bakos [12] for those in Greece. These were mainly determined by the well depths.…”

Section: Tube/soil Temperatures At Different Well Depthscontrasting

confidence: 85%

“…These were mainly determined by the well depths. The well depth reported by Uchida et al [13] was 3500 m, the well depth reported by Huang and Zhi [5] was 2006 m, the well depths reported by Cerci [14] and Ozturk et al [15] were 510-2261 m, the well depths reported by Ozgener and Kocer [7] were 153-200 m, and the well depths reported by Bakos [12] were 150-1000 m whereas the well depth of the study was 100 m. However, the tube/soil temperatures obtained from this study (-1.3 ~ 14.8 o C) are lower than the value of 145 o C (at a well depth of 13 m) reported by Huang and Zhi [5]. This is due to the fact that the well location reported by Huang and Zhi [5] is in the southwest of China whereas the well location of this study is in the northeast of China.…”

Section: Tube/soil Temperatures At Different Well Depthsmentioning

confidence: 78%

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Characteristics of geothermal energy obtained from a deep well in the coldest provincial capital of China

et al. 2018

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The abundantly available renewable geothermal energy resources play an important role in people's life in the applications of hot water supply, greenhouse heating, air conditioning, electricity generating, breeding, incubating, drying, irrigating, refrigeration, and so on. This study investigated the characteristics of geothermal energy obtained from a 100 m deep well in Harbin, the coldest provincial capital of China. The effects of air temperature, wind scale, and fluid velocity were also studied. When the air temperature varied in the range of-21.76 ~-15.27 o C and the wind scale was in the range of 2-5, the tube and soil temperatures varied in the ranges of-1

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Section: Tube/soil Temperatures At Different Well Depthscontrasting

confidence: 85%

Section: Tube/soil Temperatures At Different Well Depthsmentioning

confidence: 78%

Characteristics of geothermal energy obtained from a deep well in the coldest provincial capital of China

et al. 2018

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“…For example, the maximum temperature of many high-temperature geothermal fields is around 300 • C, which is surprising, because the magmatic sources producing the heat input typically vary between 800 and 1,200 • C. Temperatures as high as 500 • C have been measured at around 3,000 m depth in the Kakkonda Geothermal Field in Japan (Uchida et al 1997), but this is a conductive heat environment, rather than the convective environment discussed in this paper.…”

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confidence: 92%

A Mathematical Model of Rainfall-Controlled Geothermal Fields

Weir¹

2008

Transp Porous Med

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A mathematical model is developed, using a hydrothermal spring concept, for those geothermal fields which are controlled by infiltrated rainfall. Two limiting regimes are identified: when rainfall infiltration is so great that isothermal conditions exist in most of the downflow regions; and when rainfall infiltration is so small that a constant geophysical temperature gradient results. In either case, the ratio of downflow to upflow areas, and the energy output per unit area, are fixed, but the typical size of a geothermal field remains indeterminate. The additional assumption that the horizontal length scale of the downflow region is determined by the depth of the main heat sources, fixes the characteristic mass flows, energy outputs, and the number of geothermal fields in a geothermal region. These model predictions are compared with field data, and are shown to be in approximate agreement with geothermal field characteristics in the Taupo Volcanic Zone of New Zealand. The temperature dependence of water viscosity uses a correlation of Wooding (J. Fluid Mech. 2:273-285, 1957), while the temperature dependence of water density, enthalpy and boiling point use correlations from Elder (Geothermal Systems 508, 1981).

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“…This tool was initially tested in the WD-1 well at the Kokkanda geothermal field in central Japan in 1995. The tool was operated at temperatures in excess of 1900C at depths exceeding 2.6 km (Sato et al, 1996;Uchida et al, 1996). This test was designed to identify low-resistivity zones associated with through-going fractures, and the results were only partially successful in this task.…”

Section: Project Background and Statusmentioning

confidence: 99%

Summaries of LLNL geothermal energy program

Kasameyer¹

1997

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Deep Geothermal Resources Survey Project in the Kakkonda Geothermal Field

Cited by 5 publications

References 1 publication

Characteristics of geothermal energy obtained from a deep well in the coldest provincial capital of China

Characteristics of geothermal energy obtained from a deep well in the coldest provincial capital of China

A Mathematical Model of Rainfall-Controlled Geothermal Fields

Summaries of LLNL geothermal energy program

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