Salton Sea Geothermal Area

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GEOTHERMAL ENERGY




Area Overview


Geothermal Area Profile


Location: California
Exploration Region: Gulf of California Rift Zone
GEA Development Phase: Operational"Operational" is not in the list (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) of allowed values for the "GEADevelopmentPhase" property.
Coordinates: 33° 12' 0.00", -115° 36' 0.00"


Resource Estimate
Mean Reservoir Temp: 302°C575.15 K <br />575.6 °F <br />1,035.27 °R <br /> [1]
Estimated Reservoir Volume: 107.16 km³107,160,000,000 m³ <br />140,159,988,332.04 yd³ <br />107,159,999,999,999.984 L <br />674,016,122,113.2 bbl(oil) <br />898,688,162,924.76 bbl(US) <br /> [2]
Mean Capacity: 437 MW437,000 kW <br />437,000,000 W <br />437,000,000,000 mW <br />0.437 GW <br />4.37e-4 TW <br /> [3]
USGS Mean Reservoir Temp: 310°C583.15 K <br />590 °F <br />1,049.67 °R <br /> [4]
USGS Estimated Reservoir Volume: 128 km³ [4]
USGS Mean Capacity: 2210 MW [4]

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History and Infrastructure


Operating Power Plants: 10
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Developing Power Projects: 0
No geothermal projects listed.
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Power Production Profile
Gross Production Capacity: 0.0e+0 MW0 kW <br />0 W <br />0 mW <br />0 GW <br />0 TW <br />
Net Production Capacity: 0.0e+0 MW0 kW <br />0 W <br />0 mW <br />0 GW <br />0 TW <br />
Owners  :
  • CalEnergy Generation
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: 0.0e+0
Number of Production Wells:
Number of Injection Wells:
Number of Replacement Wells:
Average Temperature of Geofluid: 0.0e+0 300°C573.15 K <br />572 °F <br />1,031.67 °R <br /> [5]
Sanyal Classification (Wellhead): High Temperature
Reservoir Temp (Geothermometry):
Reservoir Temp (Measured):
Sanyal Classification (Reservoir):
Depth to Top of Reservoir: 1000m1 km <br />0.621 mi <br />3,280.84 ft <br />1,093.61 yd <br /> [5]
Depth to Bottom of Reservoir: 2500m2.5 km <br />1.553 mi <br />8,202.1 ft <br />2,734.025 yd <br /> [5]
Average Depth to Reservoir: 1750m1.75 km <br />1.087 mi <br />5,741.47 ft <br />1,913.818 yd <br />


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Geology of the Area


Geologic Setting
Tectonic Setting: Rift Zone
Controlling Structure: Pull-Apart in Strike-Slip Fault Zone [6]
Topographic Features:
Brophy Model: Type D: Sedimentary-hosted, Volcanic-related Resource
Moeck-Beardsmore Play Type: CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain"CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain" is not in the list (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) of allowed values for the "MoeckBeardsmoreType" property.


Geologic Features
Modern Geothermal Features: Hot Springs, Mudpots, Mud Pools, or Mud Volcanoes [7]
Relict Geothermal Features:
Volcanic Age: Quaternary [8]
Host Rock Age: Pleistocene [7]
Host Rock Lithology: sandstone [7]
Cap Rock Age: Holocene [8]
Cap Rock Lithology: shale [8]


Salton Sea geothermal area is located in the Salton Trough, an area of active spreading and attendant, plate-juncture plutonism. The Trough is a major transtensional rift—between the Pacific plate, on the west, and the North American plate, on the east—that merges southward through Mexico into the long, narrow Gulf of California. A chain of transform-segmented, oceanic spreading centers along the axis of the Gulf extends into southern California and the deeply-sedimented Trough as a succession of plate-bounding, right-stepping, right-lateral strike-slip faults connected by magmatically-active dilational jogs. The Salton Sea Geothermal Field is situated in the northernmost of these jogs, the northeastern boundary of which is the southeastern terminus of the San Andreas transform.

The Salton Sea geothermal system is unusually hot (up to at least 390°C at 2 km depth), hypersaline (up to 26 wt.%), and metalliferous (Fe, Zn, Pb, Cu). The system circulates in a permeable network of faults, stockwork fractures, breccias (hydrothermal and tectonic), and porous sandstones in the thick (~6 km) alluvial and lacustrine Salton Trough sedimentary sequence. The sequence comprises mostly sandstone, siltstone, and mudstone in various proportions, and is locally intruded by Pleistocene to Holocene gabbroic, granitic, and rhyolitic (but not compositionally intervening) plutons; and is interrupted at depth (about 1.6 km) by a buried rhyolite flow-dome-intrusive complex emplaced about 400,000 years ago. Similar but smaller Holocene rhyolitic volcanic centers are exposed in a northeast-oriented, crescent-shaped, concave-northwest array at the northwestern margin of the developed Salton Sea geothermal field.[9]




Heat Source

known or inferred magmatic system


Geofluid Geochemistry


Geochemistry
Salinity (low): 200000 [8]
Salinity (high): 250000 [8]
Salinity (average): 225000
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 (3)

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


Page Technique Activity Start Date Activity End Date Reference Material
Conceptual Model At Salton Sea Geothermal Area (1977) Conceptual Model 1977 1977


Earth Tidal Analysis At Salton Sea Geothermal Area (1980) Earth Tidal Analysis 1980 1980


Fluid Inclusion Analysis At Salton Sea Geothermal Area (1990) Fluid Inclusion Analysis 1990 1990

References

  1. ↑ Jeffrey W. Adams. 10/2011. The Geysers and Salton Sea Geothermal Fields. Mineral Resources Management Division. California State Lands Commission. 1-3p.
  2. ↑ Geothermex Inc.. 2004. New Geothermal Site Identification and Qualification. Richmond, CA: California Energy Commission. Report No.: P500-04-051. Contract No.: 500-04-051.
  3. ↑ Karl Gawell. 04/03/2014. Statement of Karl Gawell, Executive Director, Geothermal Energy Association Before the Senate Select Committee on California’s Energy Independence & Assembly Select Committee on Renewable Energy Economy in Rural California. Personal Communication sent to Senate Select Committee on California’s Energy Independence & Assembly Select Committee on Renewable Energy Economy in Rural California.
  4. ↑ 4.0 4.1 4.2 U.S. Geological Survey. 2008. Assessment of Moderate- and High-Temperature Geothermal Resources of the United States. USA: U.S. Geological Survey. Report No.: Fact Sheet 2008-3082.
  5. ↑ 5.0 5.1 5.2 http://www.sciencedirect.com/science/article/pii/S0375650505000854
  6. ↑ http://www.atlasgeoinc.com/wp-content/uploads/GRC2011-Faulds.pdf
  7. ↑ 7.0 7.1 7.2 http://pubs.geothermal-library.org/lib/grc/1025164.pdf
  8. ↑ 8.0 8.1 8.2 8.3 8.4 http://pubs.geothermal-library.org/lib/grc/1021914.pdf
  9. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named a61


List of existing Geothermal Resource Areas.


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