Iwate Geothermal Area

From Open Energy Information




Area Overview



Geothermal Area Profile



Location: Iwate, Japan

Exploration Region: Northeast Honshu 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: 39.8586°, 140.9033°


Resource Estimate

Mean Reservoir Temp: 305°C
578.15 K
581 °F
1,040.67 °R

Estimated Reservoir Volume: 23.2 km³
23,200,000,000 m³
5.566 mi³
819,300,267,927.2 ft³
30,344,454,360.8 yd³
23,199,999,999,999.996 L

Mean Capacity: 103.5 MW
103,500 kW
103,500,000 W
103,500,000,000 mW
0.104 GW
1.035e-4 TW

USGS Mean Reservoir Temp:

USGS Estimated Reservoir Volume:

USGS Mean Capacity:

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History and Infrastructure



Operating Power Plants: 2


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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  :
  • Tohoku Hydropower
  • Geothermal Energy.Co/Tohoku Electric Power
  • Tohoku Hydropower/Geothermal Energy Co

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:

Location:

Depth:

Initial Flow Rate:

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: 500 m
0.5 km
0.311 mi
1,640.42 ft
546.805 yd
[1]

Depth to Bottom of Reservoir: 3700 m
3.7 km
2.299 mi
12,139.108 ft
4,046.357 yd
[1]

Average Depth to Reservoir: 2100 m
2.1 km
1.305 mi
6,889.764 ft
2,296.581 yd


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Geology of the Area



Geologic Setting

Tectonic Setting: Subduction Zone

Controlling Structure:

Topographic Features: Shield Volcano

Brophy Model: Type E: Extensional Tectonic, Fault-Controlled Resource

Moeck-Beardsmore Play Type: CV-3: Extensional Domain


Geologic Features

Modern Geothermal Features: Hot Springs

Relict Geothermal Features: Hydrothermally Altered Rock

Volcanic Age: Quaternary

Host Rock Age: Miocene; Pre-Tertiary

Host Rock Lithology: Dacitic welded tuff; Marine Sediments Tuffs; Shales; Chert; Slate; Granodiorite

Cap Rock Age:

Cap Rock Lithology: Andesite


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Geofluid Geochemistry



Geochemistry

Salinity (low): 853

Salinity (high): 3843

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.

References


  1. 1.0 1.1 Ruggero Bertani. 2005. World Geothermal Power Generation 2001-2005. Proceedings of World Geothermal Congress; Turkey: World Geothermal Congress.


List of existing Geothermal Resource Areas.