Yamagawa Geothermal Area

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Yamagawa Geothermal Area

Area Overview

Geothermal Area Profile

Location: Kagoshima, Japan

Exploration Region: Ryuku Arc

GEA Development Phase: Operational"Operational" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.

Coordinates: 31.502940850072°, 130.75339755469°

Resource Estimate

Mean Reservoir Temp:

Estimated Reservoir Volume:

Mean Capacity: 30 MW30,000 kW
30,000,000 W
30,000,000,000 mW
0.03 GW
3.0e-5 TW

USGS Mean Reservoir Temp:

USGS Estimated Reservoir Volume:

USGS Mean Capacity:

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History and Infrastructure

Operating Power Plants: 0

No geothermal plants listed.

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Developing Power Projects: 0

No geothermal projects listed.

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Power Production Profile

Gross Production Capacity:

Net Production Capacity:

Owners  :

Power Purchasers :

Other Uses:

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Regulatory and Environmental Issues

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Exploration History

First Discovery Well

Completion Date:

Well Name:



Initial Flow Rate:
  • "c" is not declared as a valid unit of measurement for this property.
  • The given value was not understood.

Flow Test Comment:

Initial Temperature:

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Well Field Description

Well Field Information

Development Area:

Number of Production Wells:

Number of Injection Wells:

Number of Replacement Wells:

Average Temperature of Geofluid:

Sanyal Classification (Wellhead):

Reservoir Temp (Geothermometry):

Reservoir Temp (Measured):

Sanyal Classification (Reservoir):

Depth to Top of Reservoir: 1600m1.6 km
0.994 mi
5,249.344 ft
1,749.776 yd

Depth to Bottom of Reservoir: 2100m2.1 km
1.305 mi
6,889.764 ft
2,296.581 yd

Average Depth to Reservoir: 1850m1.85 km
1.15 mi
6,069.554 ft
2,023.179 yd

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Geology of the Area

Geologic Setting

Tectonic Setting: Subduction Zone

Controlling Structure:

Topographic Features: Stratovolcano

Brophy Model: Type B: Andesitic Volcanic Resource

Moeck-Beardsmore Play Type: CV-1a: Magmatic - Extrusive, CV-3: Extensional Domain"CV-1a: Magmatic - Extrusive, CV-3: Extensional Domain" is not in the list of possible values (CV-1a: Magmatic - Extrusive, CV-1b: Magmatic - Intrusive, CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain, CD-1: Intracratonic Basin, CD-2: Orogenic Belt, CD-3: Crystalline Rock - Basement) for this property.

Geologic Features

Modern Geothermal Features: Fumaroles, Hot Springs

Relict Geothermal Features:

Volcanic Age: Quaternary

Host Rock Age: Neogene to Recent

Host Rock Lithology: Volcanics

Cap Rock Age:

Cap Rock Lithology:

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Geofluid Geochemistry


Salinity (low): 30000

Salinity (high): 60000

Salinity (average):

Brine Constituents:

Water Resistivity:

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NEPA-Related Analyses (0)

Below is a list of NEPA-related analyses that have been conducted in the area - and logged on OpenEI. To add an additional NEPA-related analysis, see the NEPA Database.

CSV No NEPA-related documents listed.

Exploration Activities (0)

Below is a list of Exploration that have been conducted in the area - and cataloged on OpenEI. Add.png Add a new Exploration Activity

No exploration activities listed on OpenEI.


List of existing Geothermal Resource Areas.

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