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While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

Dixie Valley Geothermal Field | Open Energy Information  

Open Energy Info (EERE)

Not Provided DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Dixie Valley Geothermal Field Citation Online Nevada Encyclopedia. Dixie...

2

Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky, Et Al., 2003) Exploration Activity Details...

3

Direct-Current Resistivity At Dixie Valley Geothermal Field Area...  

Open Energy Info (EERE)

Home Exploration Activity: Direct-Current Resistivity At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field...

4

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2009) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique...

5

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique...

6

Modeling-Computer Simulations At Dixie Valley Geothermal Field...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Dixie Valley Geothermal Field Area (Wisian & Blackwell, 2004)...

7

Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details...

8

Aerial Photography At Dixie Valley Geothermal Field Area (Wesnousky...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Dixie Valley Geothermal Field Area (Wesnousky, Et Al., 2003) Exploration Activity Details...

9

Modeling-Computer Simulations At Dixie Valley Geothermal Field...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2009)...

10

Modeling-Computer Simulations At Dixie Valley Geothermal Field...  

Open Energy Info (EERE)

Modeling-Computer Simulations At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

11

Water Sampling At Dixie Valley Geothermal Field Area (Kennedy...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Exploration...

12

Ground Gravity Survey At Dixie Valley Geothermal Field Area ...  

Open Energy Info (EERE)

In Dixie Valley, Nevada Retrieved from "http:en.openei.orgwindex.php?titleGroundGravitySurveyAtDixieValleyGeothermalFieldArea(Blackwell,EtAl.,2009)&oldid38834...

13

Aluto-Langano Geothermal Field, Ethiopian Rift Valley- Physical  

Open Energy Info (EERE)

Aluto-Langano Geothermal Field, Ethiopian Rift Valley- Physical Aluto-Langano Geothermal Field, Ethiopian Rift Valley- Physical Characteristics And The Effects Of Gas On Well Performance Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Aluto-Langano Geothermal Field, Ethiopian Rift Valley- Physical Characteristics And The Effects Of Gas On Well Performance Details Activities (0) Areas (0) Regions (0) Abstract: This study, which focuses on the Aluto-Langano geothermal field, is part of the ongoing investigations of the geothermal systems in the Ethiopian Rift Valley. Aluto-Langano is a water-dominated gas-rich geothermal field, with a maximum temperature close to 360┬░C, in the Lakes District region of the Ethiopian Rift Valley. The upflow zone for the system lies along a deep, young NNE trending fault and is characterized by

14

Regional hydrology of the Dixie Valley geothermal field, Nevada...  

Open Energy Info (EERE)

Counc, 1999 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Regional hydrology of the Dixie Valley geothermal field, Nevada- Preliminary...

15

An investigation of the Dixie Valley geothermal field, Nevada...  

Open Energy Info (EERE)

2007 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for An investigation of the Dixie Valley geothermal field, Nevada, using...

16

Ground Gravity Survey At Dixie Valley Geothermal Field Area ...  

Open Energy Info (EERE)

Details Location Dixie Valley Geothermal Field Area Exploration Technique Ground Gravity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The gravity data are...

17

Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy...  

Open Energy Info (EERE)

| Sign Up Search Page Edit History Facebook icon Twitter icon Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Jump to: navigation, search...

18

Aeromagnetic Survey At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

Details Location Dixie Valley Geothermal Field Area Exploration Technique Aeromagnetic Survey Activity Date Usefulness useful DOE-funding Unknown Notes In 2002 a high-resolution...

19

Isotopic Analysis At Dixie Valley Geothermal Field Area (Laney, 2005) |  

Open Energy Info (EERE)

Isotopic Analysis At Dixie Valley Geothermal Field Area (Laney, 2005) Isotopic Analysis At Dixie Valley Geothermal Field Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness not indicated DOE-funding Unknown Notes Gas and Isotopes Geochemistry, Kennedy, van Soest and Shevenell. During FY04, we concentrated on two primary projects. The first was a detailed study of helium isotope systematics throughout Dixie Valley and the inter-relationship between the Dixie Valley geothermal reservoir and local hydrology. The second is the construction of a helium isotope "map" of the

20

An investigation of the Dixie Valley geothermal field, Nevada, using  

Open Energy Info (EERE)

investigation of the Dixie Valley geothermal field, Nevada, using investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Author Marshall J. Reed Conference Proceedings, 32nd Workshop on Geothermal Reservoir Engineering; Stanford University; 2007 Published Publisher Not Provided, 2007 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Citation Marshall J. Reed. 2007. An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests. In:

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell, Et  

Open Energy Info (EERE)

Et Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Aerial Photography Activity Date Usefulness not indicated DOE-funding Unknown Notes Geologic mapping from air photos in some places clearly located the structures in the valley and hence is very site specific. References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Retrieved from "http://en.openei.org/w/index.php?title=Aerial_Photography_At_Dixie_Valley_Geothermal_Field_Area_(Blackwell,_Et_Al.,_2003)&oldid=388817

22

Hyperspectral Imaging At Dixie Valley Geothermal Field Area (Laney, 2005) |  

Open Energy Info (EERE)

Imaging At Dixie Valley Geothermal Field Area (Laney, 2005) Imaging At Dixie Valley Geothermal Field Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Hyperspectral Imaging At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Hyperspectral Imaging Activity Date Spectral Imaging Sensor AVIRIS Usefulness useful DOE-funding Unknown Notes Geology and Geophysics of Geothermal Systems, Gregory Nash, 2005. Hyperspectral data was also used to successfully map soil-mineral anomalies that are structurally related in Dixie Valley, Nevada. In the area of the power plant, 20 m spatial resolution AVIRIS data were used. For Dixie Meadows, Nevada, 3 m spatial resolution HyVista HyMap hyperspectral data

23

Magnetotellurics At Dixie Valley Geothermal Field Area (Laney, 2005) | Open  

Open Energy Info (EERE)

2005) 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Magnetotellurics At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Magnetotellurics Activity Date Usefulness useful DOE-funding Unknown Notes Structural Controls, Alteration, Permeability and Thermal Regime of Dixie Valley from New-Generation Mt/Galvanic Array Profiling, Phillip Wannamaker. A new-generation MT/DC array resistivity measurement system was applied at the Dixie Valley thermal area. Basic goals of the survey are 1), resolve a fundamental structural ambiguity at the Dixie Valley thermal area (single rangefront fault versus shallower, stepped pediment; 2), delineate fault

24

Modeling-Computer Simulations At Dixie Valley Geothermal Field Area  

Open Energy Info (EERE)

Dixie Valley Geothermal Field Area Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Modeling-Computer Simulations Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes Using a simple one-dimensional steady-state fluid flow model, the helium content and isotopic composition imply vertical fluid flow rates from the mantle of _7 mm/yr. This is a strict lower limit to the fluid flow rate: the one-dimensional model does not consider diffusive re-distribution of helium or mixing with water containing only a crustal helium component and

25

Regional hydrology of the Dixie Valley geothermal field, Nevada-  

Open Energy Info (EERE)

hydrology of the Dixie Valley geothermal field, Nevada- hydrology of the Dixie Valley geothermal field, Nevada- Preliminary interpretations of chemical and isotopic data Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Regional hydrology of the Dixie Valley geothermal field, Nevada- Preliminary interpretations of chemical and isotopic data Authors Gregory Nimz, Cathy Janik, Fraser Goff, Charles Dunlap, Mark Huebner, Dale Counce and Stuart D. Johnson Published Journal Trans Geotherm Resour Counc, 1999 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Regional hydrology of the Dixie Valley geothermal field, Nevada- Preliminary interpretations of chemical and isotopic data Citation Gregory Nimz,Cathy Janik,Fraser Goff,Charles Dunlap,Mark Huebner,Dale

26

Compound and Elemental Analysis At Dixie Valley Geothermal Field Area  

Open Energy Info (EERE)

Compound and Elemental Analysis At Dixie Valley Compound and Elemental Analysis At Dixie Valley Geothermal Field Area (Wood, 2002) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes Geothermal fluids from hot springs and wells have been sampled from a number of locations, including: 1) the North Island of New Zealand (three sets of samples from three different years) and the South Island of New Zealand (1 set of samples); 2) the Cascades of Oregon; 3) the Harney, Alvord Desert and Owyhee geothermal areas of Oregon; 4) the Dixie Valley and Beowawe fields in Nevada; 5) Palinpiiion, the Philippines; 6) the Salton Sea and Heber geothermal fields of southern California; and 7) the

27

Aeromagnetic Survey At Dixie Valley Geothermal Field Area (Blackwell, Et  

Open Energy Info (EERE)

Dixie Valley Geothermal Field Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Aeromagnetic Survey Activity Date Usefulness useful DOE-funding Unknown Notes The high resolution aeromagnetic technique was very successful along the east side of the valley, but less along the geothermally important west side. Detailed correlation will be investigated when the high resolution data are available. The magnetic results will also vary from area to area depending on the local rock types more than in the other techniques. Nonetheless important information on the style of the faulting is contained in the data. References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of

28

Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky, Et Al.,  

Open Energy Info (EERE)

2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown References Steven Wesnousky, S. John Caskey, John W. Bell (2003) Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Dixie_Valley_Geothermal_Field_Area_(Wesnousky,_Et_Al.,_2003)&oldid=510736" Categories: Exploration Activities DOE Funded Activities What links here

29

Possible Magmatic Input to the Dixie Valley Geothermal Field, and  

Open Energy Info (EERE)

Possible Magmatic Input to the Dixie Valley Geothermal Field, and Possible Magmatic Input to the Dixie Valley Geothermal Field, and Implications for District-Scale Resource Exploration, Inferred from Magnetotelluric (MT) Resistivity Surveying Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Possible Magmatic Input to the Dixie Valley Geothermal Field, and Implications for District-Scale Resource Exploration, Inferred from Magnetotelluric (MT) Resistivity Surveying Abstract Magnetotelluric (MT) profiling in northwestern Nevadais used to test hypotheses on the main sources of heat andhydrothermal fluid for the Dixie Valley-Central NevadaSeismic Belt area. The transect reveals families of resistivitystructures commonly dominated by steeply-dipping features,some of which may be of key geothermal significance. Mostnotably, 2-D inversion

30

Aeromagnetic Survey At Dixie Valley Geothermal Field Area (Blackwell, Et  

Open Energy Info (EERE)

Aeromagnetic Survey At Dixie Valley Geothermal Field Aeromagnetic Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2009) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Aeromagnetic Survey Activity Date Usefulness useful DOE-funding Unknown Notes In 2002 a high-resolution aeromagnetic survey was conducted over a 940 km2 area extending from Dixie Meadows northeastward to the Sou Hills, and from the eastern front of the Stillwater Range to the western edge of the Clan Alpine Range (Grauch, 2002). The resulting aeromagnetic map is described and discussed by Smith et al. (2002). Many of the shallow faults revealed by the aeromagnetic data (Figure 3) coincide with faults mapped based on surface expression on aerial photographs (Smith et al., 2001). However, in

31

Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada  

DOE Green Energy (OSTI)

Publish new thermal and drill data from the Dizie Valley Geothermal Field that affect evaluation of Basin and Range Geothermal Resources in a very major and positive way. Completed new geophysical surveys of Dizie Valley including gravity and aeromagnetics and integrated the geophysical, seismic, geological and drilling data at Dizie Valley into local and regional geologic models. Developed natural state mass and energy transport fluid flow models of generic Basin and Range systems based on Dizie Valley data that help to understand the nature of large scale constraints on the location and characteristics of the geothermal systems. Documented a relation between natural heat loss for geothermal and electrical power production potential and determined heat flow for 27 different geothermal systems. Prepared data set for generation of a new geothermal map of North American including industry data totaling over 25,000 points in the US alone.

David Blackwell; Kenneth Wisian; Maria Richards; Mark Leidig; Richard Smith; Jason McKenna

2003-08-14T23:59:59.000Z

32

A model for the shallow thermal regime at Dixie Valley geothermal field |  

Open Energy Info (EERE)

A model for the shallow thermal regime at Dixie Valley geothermal field A model for the shallow thermal regime at Dixie Valley geothermal field Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A model for the shallow thermal regime at Dixie Valley geothermal field Authors R. G. Allis, Stuart D. Johnson, Gregory D. Nash and Dick Benoit Published Journal TRANSACTIONS-GEOTHERMAL RESOURCES COUNCIL, 1999 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for A model for the shallow thermal regime at Dixie Valley geothermal field Citation R. G. Allis,Stuart D. Johnson,Gregory D. Nash,Dick Benoit. 1999. A model for the shallow thermal regime at Dixie Valley geothermal field. TRANSACTIONS-GEOTHERMAL RESOURCES COUNCIL. 23:493-498. Retrieved from "http://en.openei.org/w/index.php?title=A_model_for_the_shallow_thermal_regime_at_Dixie_Valley_geothermal_field&oldid=682587"

33

Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field  

E-Print Network (OSTI)

of a tracer test at Dixie Valley, Nevadaö, Proc. 22 ndand footwall faulting at Dixie Valley, Nevadaö, Geothermalthe shallow thermal regime at Dixie Valley geothermal field,

Foxall, B.; Vasco, D.W.

2008-01-01T23:59:59.000Z

34

Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy & Van  

Open Energy Info (EERE)

Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy & Van Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness useful DOE-funding Unknown Notes Fluids from springs, fumaroles, and wells throughout Dixie Valley, NV were analyzed for noble gas abundances and isotopic compositions. The helium isotopic compositions of fluids produced from the Dixie Valley geothermal field range from 0.70 to 0.76 Ra, are among the highest values in the valley, and indicate that _7.5% of the total helium is derived from the

35

Field Mapping At Dixie Valley Geothermal Field Area (Smith, Et Al., 2001) |  

Open Energy Info (EERE)

Et Al., 2001) Et Al., 2001) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Dixie Valley Geothermal Field Area (Smith, Et Al., 2001) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown References Richard P. Smith, Kenneth W. Wisianz, David D. BlackweIl (2001) Geologic And Geophysical Evidence For Intra-Basin And Footwall Faulting At Dixie Valley, Nevada Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Dixie_Valley_Geothermal_Field_Area_(Smith,_Et_Al.,_2001)&oldid=510735" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link

36

Ground Gravity Survey At Dixie Valley Geothermal Field Area (Blackwell, Et  

Open Energy Info (EERE)

Dixie Valley Geothermal Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Ground Gravity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The gravity data are not as site specific as the seismic, but put the major parts of the structure in their proper location and places vital constraints on the possible interpretations of the seismic data. References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Retrieved from "http://en.openei.org/w/index.php?title=Ground_Gravity_Survey_At_Dixie_Valley_Geothermal_Field_Area_(Blackwell,_Et_Al.,_2003)&oldid=388459

37

Water Sampling At Dixie Valley Geothermal Field Area (Wood, 2002) | Open  

Open Energy Info (EERE)

Water Sampling At Dixie Valley Geothermal Field Area Water Sampling At Dixie Valley Geothermal Field Area (Wood, 2002) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Water Sampling Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes Geothermal fluids from hot springs and wells have been sampled from a number of locations, including: 1) the North Island of New Zealand (three sets of samples from three different years) and the South Island of New Zealand (1 set of samples); 2) the Cascades of Oregon; 3) the Harney, Alvord Desert and Owyhee geothermal areas of Oregon; 4) the Dixie Valley and Beowawe fields in Nevada; 5) Palinpiiion, the Philippines; 6) the Salton Sea and Heber geothermal fields of southern California; and 7) the

38

Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy & Van  

Open Energy Info (EERE)

Dixie Valley Geothermal Field Area (Kennedy & Van Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness useful DOE-funding Unknown Notes Dixie Valley study suggests that helium isotopes may provide a new tool for mapping zones of deep permeability and therefore the potential for high fluid temperatures. The permeable zones are identified by local enrichments in 3He relative to a regional helium isotope trend. More work needs to be done, but it appears that helium isotopes may provide the best and perhaps

39

Water Sampling At Dixie Valley Geothermal Field Area (Kennedy & Van Soest,  

Open Energy Info (EERE)

Van Soest, Van Soest, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Water Sampling Activity Date Usefulness useful DOE-funding Unknown Notes Fluids from springs, fumaroles, and wells throughout Dixie Valley, NV were analyzed for noble gas abundances and isotopic compositions. The helium isotopic compositions of fluids produced from the Dixie Valley geothermal field range from 0.70 to 0.76 Ra, are among the highest values in the valley, and indicate that _7.5% of the total helium is derived from the mantle. A lack of recent volcanics or other potential sources requires flow

40

Compound and Elemental Analysis At Dixie Valley Geothermal Field...  

Open Energy Info (EERE)

geothermal fields of southern California; and 7) the Dieng field in Central Java, Indonesia. We have analyzed the samples from all fields for REE except the last two. Our...

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Direct-Current Resistivity At Dixie Valley Geothermal Field Area (Laney,  

Open Energy Info (EERE)

2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Structural Controls, Alteration, Permeability and Thermal Regime of Dixie Valley from New-Generation Mt/Galvanic Array Profiling, Phillip Wannamaker. A new-generation MT/DC array resistivity measurement system was applied at the Dixie Valley thermal area. Basic goals of the survey are 1), resolve a fundamental structural ambiguity at the Dixie Valley thermal area (single rangefront fault versus shallower, stepped pediment; 2), delineate fault

42

Direct-Current Resistivity Survey At Dixie Valley Geothermal Field Area  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Dixie Valley Direct-Current Resistivity Survey At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Structural Controls, Alteration, Permeability and Thermal Regime of Dixie Valley from New-Generation Mt/Galvanic Array Profiling, Phillip Wannamaker. A new-generation MT/DC array resistivity measurement system was applied at the Dixie Valley thermal area. Basic goals of the survey are 1), resolve a fundamental structural ambiguity at the Dixie Valley thermal area (single rangefront fault versus shallower, stepped pediment; 2), delineate fault zones which have experienced fluid flux as indicated by low resistivity;

43

InSAR At Dixie Valley Geothermal Field Area (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Laney, 2005) Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: InSAR At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique InSAR Activity Date Usefulness useful DOE-funding Unknown Notes Localized Strain as a Discriminator of Hidden Geothermal Systems, Vasco and Foxall, 2005. Recent work has focused on (1) collaborating with Alessandro Ferretti to use Permanent Scatterer (PS) InSAR data to infer strain at depth, (2) working with Lane Johnson to develop a dynamic faulting model, and (3) acquiring InSAR data for the region surrounding the Dixie Valley fault zone in collaboration with Dr. William Foxall of LLNL. The InSAR data have been processed and an initial interpretation of the results is

44

Thermodynamic calculations of calcium carbonate scaling in geothermal wells, Dixie Valley geothermal field, U. S. A  

Science Conference Proceedings (OSTI)

Wells in the Dixie Valley geothermal field of central Nevada intercept a fracture-dominated hydrothermal system at depths of 2.5 to 3 km. The reservoir water is a dilute sodium-bicarbonate-chloride type of solution thought to be in equilibrium with quartz, calcite, chlorite, and albite. Fluid sampling and chemical analysis of production during an early flow test gave remarkably low calcium concentrations. Thermodynamic calculations of mineral stability in the presence of the reservoir water indicate that five times the amount of calcium measured in fluid reaching the surface is actually in solution in the reservoir fluid. Approximately 80 percent of the calcium is lost as calcium carbonate scale on the well casing before the fluid reaches the surface. The results of thermodynamic calculations compare well with the scale-volume measurements of Benoit.

Reed, M.J. (Geothermal Technology Div., U.S. Dept. of Energy, Washington, DC (US))

1989-01-01T23:59:59.000Z

45

Ground Gravity Survey At Dixie Valley Geothermal Field Area (Blackwell, Et  

Open Energy Info (EERE)

Blackwell, Et Blackwell, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2009) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Ground Gravity Survey Activity Date Usefulness useful DOE-funding Unknown Notes "The gravity data are described by (Blackwell et al., 1999; 2002). On a basin-wide scale the gravity low in Dixie Valley is strongly asymmetrical from east to west. The west side is relatively well-defined by rapid horizontal changes in the gravity anomaly value, whereas along the east side horizontal changes are more subdued and often consist of several steps. The horizontal gradient of the gravity field has proved most useful

46

Preliminary investigation of scale formation and fluid chemistry at the Dixie Valley Geothermal Field, Nevada  

DOE Green Energy (OSTI)

The chemistry of geothermal, production, and injection fluids at the Dixie Valley Geothermal Field, Nevada, was characterized to address an ongoing scaling problem and to evaluate the effects of reinjection into the reservoir. Fluids generally followed mixing-dilution trends. Recharge to the Dixie Valley system apparently originates from local sources. The low-pressure brine and injection waters were saturated with respect to amorphous silica, which correlated with the ongoing scaling problem. Local shallow ground water contains about 15% geothermal brine mixed with regional recharge. The elevated Ca, Mg, and HCO{sub 3} content of this water suggests that carbonate precipitation may occur if shallow groundwater is reinjected. Downhole reservoir fluids are close to equilibrium with the latest vein mineral assemblage of wairakite-epidote-quartz-calcite. Reinjection of spent geothermal brine is predicted to affect the region near the wellbore differently than it does the region farther away.

Bruton, C.J.; Counce, D.; Bergfeld, D.; Goff, F.; Johnson, S.D.; Moore, J.N.; Nimz, G.

1997-06-27T23:59:59.000Z

47

1974 geothermal field tests at the Niland Reservoir in the Imperial Valley of California  

DOE Green Energy (OSTI)

The phases of the 1974 geothermal field tests at the Niland Reservoir in the Imperial Valley of California are documented. The following tests are included: separator, steam scrubber, steam turbine, heat exchanger, packed heat exchanger, corrosion, chemical cleaning, and control and instrumentation. (MHR)

Not Available

1974-01-01T23:59:59.000Z

48

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al.,  

Open Energy Info (EERE)

3) 3) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Reflection Survey Activity Date Usefulness useful DOE-funding Unknown Notes The seismic reflection data are very useful and can be site specific when a profile is in the right place, but are sparse, very difficult to interpret correctly, and expensive to collect. The velocity values used are uncertain even though there are several sonic logs for the wells. A VSP, Vertical Seismic Profile, survey would significantly improve the precision of the interpretation References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada

49

Pumpernickel Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Pumpernickel Valley Geothermal Area Pumpernickel Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Pumpernickel Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (0) 10 References Map: Pumpernickel Valley Geothermal Area Pumpernickel Valley Geothermal Area Location Map Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northwest Basin and Range Geothermal Region GEA Development Phase: none"None" 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.

50

Possible Magmatic Input to the Dixie Valley Geothermal Field...  

Open Energy Info (EERE)

Basin. Authors Philip E. Wannamaker, William M. Doerner and Derrick P. Hasterok Published Journal 31st Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford,...

51

Regional hydrology of the Dixie Valley geothermal field, Nevada: preliminary interpretations of chemical and isotopic data  

SciTech Connect

Chemical and isotopic analyses of Dixie Valley regional waters indicate several distinct groups ranging in recharge age from Pleistocene (<20 ka) to recent (<50a). Valley groundwater is older than water from perennial springs and artesian wells in adjacent ranges, with Clan Alpine range (east) much younger (most <50a) than Stillwater range (west; most >1000a). Geothermal field fluids ({approximately}12-14 ka) appear derived from water similar in composition to non-thermal groundwater observed today in valley artesian wells (also -14 ka). Geothermal fluid interaction with mafic rocks (Humboldt Lopolith) appears to be common, and significant reaction with granodiorite may also occur. Despite widespread occurrence of carbonate rocks, large scale chemical interaction appears minor. Age asymmetry of the ranges, more extensive interaction with deep-seated waters in the west, and distribution of springs and artesian wells suggest the existence of a regional upward hydrologic gradient with an axis in proximity to the Stillwater range.

Counce, D; Dunlap, C; Goff, F; Huebner, M; Janik, C; Johnson, S; Nimz, G

1999-08-16T23:59:59.000Z

52

Lualualei Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon ┬╗ Lualualei Valley Geothermal Area (Redirected from Lualualei Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lualualei Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

53

Regional hydrology of the Dixie Valley geothermal field, Nevada: preliminary interpretations of chemical and isotopic data  

Science Conference Proceedings (OSTI)

Chemical and isotopic analyses of Dixie Valley regional waters indicate several distinct groups ranging in recharge age from Pleistocene (1000a). Geothermal field fluids ({approximately}12-14 ka) appear derived from water similar in composition to non-thermal groundwater observed today in valley artesian wells (also -14 ka). Geothermal fluid interaction with mafic rocks (Humboldt Lopolith) appears to be common, and significant reaction with granodiorite may also occur. Despite widespread occurrence of carbonate rocks, large scale chemical interaction appears minor. Age asymmetry of the ranges, more extensive interaction with deep-seated waters in the west, and distribution of springs and artesian wells suggest the existence of a regional upward hydrologic gradient with an axis in proximity to the Stillwater range.

Counce, D; Dunlap, C; Goff, F; Huebner, M; Janik, C; Johnson, S; Nimz, G

1999-08-16T23:59:59.000Z

54

Recency of Faulting and Neotechtonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range  

DOE Green Energy (OSTI)

We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal development. The approach developed here during our pilot study provides an inexpensive approach to (1) better define the best locations to site geothermal wells within known geothermal fields and (2) to define the location of yet discovered geothermal fields which are not manifest at the surface by active geothermal springs. More specifically, our investigation shows that induced stress concentrations at the endpoints of normal fault ruptures appear to promote favorable conditions for hydrothermal activity in two ways. We conclude that an understanding of the spatial distribution of active faults and the past history of earthquakes on those faults be incorporated as a standard tool in geothermal exploration and in the siting of future boreholes in existing geothermal fields.

Steven Wesnousky; S. John Caskey; John W. Bell

2003-02-20T23:59:59.000Z

55

Lualualei Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Lualualei Valley Geothermal Area Lualualei Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lualualei Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

56

Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field  

E-Print Network (OSTI)

site and the Okuaizu geothermal field, Japan", Geothermics,at the Cerro Prieto geothermal field, Baja California,and seismicity in the Coso geothermal area, Inyo County,

Foxall, B.; Vasco, D.W.

2008-01-01T23:59:59.000Z

57

Gabbs Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Gabbs Valley Geothermal Area Gabbs Valley Geothermal Area (Redirected from Gabbs Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Gabbs Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (4) 9 Exploration Activities (11) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Central Nevada Seismic Zone GEA Development Phase: None"None" 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.

58

Jersey Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Jersey Valley Geothermal Area Jersey Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Jersey Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (0) 10 References Area Overview Geothermal Area Profile Location: near Fallon, NV Exploration Region: Central Nevada Seismic Zone Geothermal Region GEA Development Phase: None"None" 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.

59

Isotopic Constraints on the Chemical Evolution of Geothermal Fluids, Long Valley, CA  

E-Print Network (OSTI)

Energy Sciences and Office of Geothermal Technologies underconcentrations in Long Valley geothermal waters discriminateand wells from the geothermal field and a nearby exploratory

Brown, Shaun

2010-01-01T23:59:59.000Z

60

Reflection Survey At Dixie Valley Geothermal Field Area (Blackwell, Et Al.,  

Open Energy Info (EERE)

9) 9) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Reflection Survey Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes "The seismic reflection profiles of the range front structures are difficult to interpret because of he steep dips and 3-d fault zone geometry, in the-classical paper by Okaya and Thompson (1985) the range-bounding fault is not imaged as they proposed. The reflection seismic studies are the most useful of the geophysical techniques also the most expensive. The reflection data are two-dimensional making structural interpretation complicated for the three-dimensional geometry of the basin so that the other structural studied have been critical in correctly interpreting the seismic profiles. There are many

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61

Reservoir-scale fracture permeability in the Dixie Valley, Nevada, geothermal field  

Science Conference Proceedings (OSTI)

Wellbore image data recorded in six wells penetrating a geothermal reservoir associated with an active normal fault at Dixie Valley, Nevada, were used in conjunction with hydrologic tests and in situ stress measurements to investigate the relationship between reservoir productivity and the contemporary in situ stress field. The analysis of data from wells drilled into productive and non-productive segments of the Stillwater fault zone indicates that fractures must be both optimally oriented and critically stressed to have high measured permeabilities. Fracture permeability in all wells is dominated by a relatively small number of fractures oriented parallel to the local trend of the Stillwater Fault. Fracture geometry may also play a significant role in reservoir productivity. The well-developed populations of low angle fractures present in wells drilled into the producing segment of the fault are not present in the zone where production is not commercially viable.

Barton, C.A.; Zoback, M.D. [Stanford Univ., CA (United States). Dept. of Geophysics; Hickman, S. [Geological Survey, Menlo Park, CA (United States); Morin, R. [Geological Survey, Denver, CO (United States); Benoit, D. [Oxbow Geothermal Corp., Reno, NV (United States)

1998-08-01T23:59:59.000Z

62

Pumpernickel Valley Geothermal Project Thermal Gradient Wells  

DOE Green Energy (OSTI)

The Pumpernickel Valley geothermal project area is located near the eastern edge of the Sonoma Range and is positioned within the structurally complex Winnemucca fold and thrust belt of north-central Nevada. A series of approximately north-northeast-striking faults related to the Basin and Range tectonics are superimposed on the earlier structures within the project area, and are responsible for the final overall geometry and distribution of the pre-existing structural features on the property. Two of these faults, the Pumpernickel Valley fault and Edna Mountain fault, are range-bounding and display numerous characteristics typical of strike-slip fault systems. These characteristics, when combined with geophysical data from Shore (2005), indicate the presence of a pull-apart basin, formed within the releasing bend of the Pumpernickel Valley ľ Edna Mountain fault system. A substantial body of evidence exists, in the form of available geothermal, geological and geophysical information, to suggest that the property and the pull-apart basin host a structurally controlled, extensive geothermal field. The most evident manifestations of the geothermal activity in the valley are two areas with hot springs, seepages, and wet ground/vegetation anomalies near the Pumpernickel Valley fault, which indicate that the fault focuses the fluid up-flow. There has not been any geothermal production from the Pumpernickel Valley area, but it was the focus of a limited exploration effort by Magma Power Company. In 1974, the company drilled one exploration/temperature gradient borehole east of the Pumpernickel Valley fault and recorded a thermal gradient of 160oC/km. The 1982 temperature data from five unrelated mineral exploration holes to the north of the Magma well indicated geothermal gradients in a range from 66 to 249oC/km for wells west of the fault, and ~283oC/km in a well next to the fault. In 2005, Nevada Geothermal Power Company drilled four geothermal gradient wells, PVTG-1, -2, -3, and -4, and all four encountered geothermal fluids. The holes provided valuable water geochemistry, supporting the geothermometry results obtained from the hot springs and Magma well. The temperature data gathered from all the wells clearly indicates the presence of a major plume of thermal water centered on the Pumpernickel Valley fault, and suggests that the main plume is controlled, at least in part, by flow from this fault system. The temperature data also defines the geothermal resource with gradients >100oC/km, which covers an area a minimum of 8 km2. Structural blocks, down dropped with respect to the Pumpernickel Valley fault, may define an immediate reservoir. The geothermal system almost certainly continues beyond the recently drilled holes and might be open to the east and south, whereas the heat source responsible for the temperatures associated with this plume has not been intersected and must be at a depth greater than 920 meters (depth of the deepest well ľ Magma well). The geological and structural setting and other characteristics of the Pumpernickel Valley geothermal project area are markedly similar to the portions of the nearby Dixie Valley geothermal field. These similarities include, among others, the numerous, unexposed en echelon faults and large-scale pull-apart structure, which in Dixie Valley may host part of the geothermal field. The Pumpernickel Valley project area, for the majority of which Nevada Geothermal Power Company has geothermal rights, represents a geothermal site with a potential for the discovery of a relatively high temperature reservoir suitable for electric power production. Among locations not previously identified as having high geothermal potential, Pumpernickel Valley has been ranked as one of four sites with the highest potential for electrical power production in Nevada (Shevenell and Garside, 2003). Richards and Blackwell (2002) estimated the total heat loss and the preliminary production capacity for the entire Pumpernickel Valley geothermal system to be at 35MW. A more conservative estimate, for

Z. Adam Szybinski

2006-01-01T23:59:59.000Z

63

Sierra Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Sierra Valley Geothermal Area Sierra Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Sierra Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.71166667,"lon":-120.3216667,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

64

Gabbs Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon ┬╗ Gabbs Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Gabbs Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (4) 9 Exploration Activities (11) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Central Nevada Seismic Zone GEA Development Phase: None"None" 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.

65

Dixie Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Dixie Valley Geothermal Area Dixie Valley Geothermal Area (Redirected from Dixie Valley Geothermal Field Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Dixie Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (6) 9 Exploration Activities (25) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.967665,"lon":-117.855074,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

66

Inversion of Synthetic Aperture Radar Interferograms for Sources of Production-Related Subsidence at the Dixie Valley Geothermal Field  

DOE Green Energy (OSTI)

We used synthetic aperture radar interferograms to image ground subsidence that occurred over the Dixie Valley geothermal field during different time intervals between 1992 and 1997. Linear elastic inversion of the subsidence that occurred between April, 1996 and March, 1997 revealed that the dominant sources of deformation during this time period were large changes in fluid volumes at shallow depths within the valley fill above the reservoir. The distributions of subsidence and subsurface volume change support a model in which reduction in pressure and volume of hot water discharging into the valley fill from localized upflow along the Stillwater range frontal fault is caused by drawdown within the upflow zone resulting from geothermal production. Our results also suggest that an additional source of fluid volume reduction in the shallow valley fill might be similar drawdown within piedmont fault zones. Shallow groundwater flow in the vicinity of the field appears to be controlled on the NW by a mapped fault and to the SW by a lineament of as yet unknown origin.

Foxall, W; Vasco, D

2003-02-07T23:59:59.000Z

67

Grass Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Grass Valley Geothermal Area Grass Valley Geothermal Area (Redirected from Grass Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Grass Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (2) 9 Exploration Activities (1) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.60333333,"lon":-117.645,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

68

Valley Of Ten Thousand Smokes Region Geothermal Area | Open Energy  

Open Energy Info (EERE)

Valley Of Ten Thousand Smokes Region Geothermal Area Valley Of Ten Thousand Smokes Region Geothermal Area (Redirected from Valley Of Ten Thousand Smokes Region Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Valley Of Ten Thousand Smokes Region Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Alaska Exploration Region: Alaska Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

69

Walker Lake Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Walker Lake Valley Geothermal Area Walker Lake Valley Geothermal Area (Redirected from Walker Lake Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Walker Lake Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

70

Valley Of Ten Thousand Smokes Region Geothermal Area | Open Energy  

Open Energy Info (EERE)

Valley Of Ten Thousand Smokes Region Geothermal Area Valley Of Ten Thousand Smokes Region Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Valley Of Ten Thousand Smokes Region Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Alaska Exploration Region: Alaska Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

71

Walker Lake Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Walker Lake Valley Geothermal Area Walker Lake Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Walker Lake Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

72

Dixie Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Dixie Valley Geothermal Area Dixie Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Dixie Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (6) 9 Exploration Activities (25) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.967665,"lon":-117.855074,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

73

Grass Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Grass Valley Geothermal Area Grass Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Grass Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (2) 9 Exploration Activities (1) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.60333333,"lon":-117.645,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

74

Little Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Little Valley Geothermal Area Little Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Little Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.89166667,"lon":-117.5,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

75

Geothermal Literature Review At Long Valley Caldera Geothermal Area (1984)  

Open Energy Info (EERE)

Geothermal Literature Review At Long Valley Caldera Geothermal Area (1984) Geothermal Literature Review At Long Valley Caldera Geothermal Area (1984) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At Long Valley Caldera Geothermal Area (1984) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique Geothermal Literature Review Activity Date 1984 Usefulness not indicated DOE-funding Unknown Notes The melt zones of volcanic clusters was analyzed with recent geological and geophysical data for five magma-hydrothermal systems were studied for the purpose of developing estimates for the depth, volume and location of magma beneath each area. References Goldstein, N. E.; Flexser, S. (1 December 1984) Melt zones beneath five volcanic complexes in California: an assessment of shallow

76

Dixie Valley Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

Dixie Valley Geothermal Facility Dixie Valley Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Dixie Valley Geothermal Facility General Information Name Dixie Valley Geothermal Facility Facility Dixie Valley Sector Geothermal energy Location Information Location Dixie Valley, Nevada Coordinates 39.966973991529┬░, -117.85519123077┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.966973991529,"lon":-117.85519123077,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

77

Little Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon ┬╗ Little Valley Geothermal Area (Redirected from Little Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Little Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.89166667,"lon":-117.5,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

78

New River Geothermal Research Project, Imperial Valley, California...  

Open Energy Info (EERE)

New River Geothermal Research Project, Imperial Valley, California Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title New River Geothermal...

79

Railroad Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon ┬╗ Railroad Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Railroad Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.434,"lon":-115.529,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

80

Geothermal resource investigations, Imperial Valley, California. Status report  

DOE Green Energy (OSTI)

The discussion is presented under the following chapter titles: geothermal resource investigations, Imperial Valley, California; the source of geothermal heat; status of geothermal resources (worldwide); geothermal aspects of Imperial Valley, California; potential geothermal development in Imperial Valley; environmental considerations; and proposed plan for development. (JGB)

Not Available

1971-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Results from shallow research drilling at Inyo Domes, Long Valley Caldera, California and Salton Sea geothermal field, Salton Trough, California  

DOE Green Energy (OSTI)

This report reviews the results from two shallow drilling programs recently completed as part of the United States Department of Energy Continental Scientific Drilling Program. The purpose is to provide a broad overview of the objectives and results of the projects, and to analyze these results in the context of the promise and potential of research drilling in crustal thermal regimes. The Inyo Domes drilling project has involved drilling 4 shallow research holes into the 600-year-old Inyo Domes chain, the youngest rhyolitic event in the coterminous United States and the youngest volcanic event in Long Valley Caldera, California. The purpose of the drilling at Inyo was to understand the thermal, chemical and mechanical behavior of silicic magma as it intrudes the upper crust. This behavior, which involves the response of magma to decompression and cooling, is closely related to both eruptive phenomena and the establishment of hydrothermal circulation. The Salton Sea shallow research drilling project involved drilling 19 shallow research holes into the Salton Sea geothermal field, California. The purpose of this drilling was to bound the thermal anomaly, constrain hydrothermal flow pathways, and assess the thermal budget of the field. Constraints on the thermal budget links the local hydrothermal system to the general processes of crustal rifting in the Salton Trough.

Younker, L.W.; Eichelberger, J.C.; Kasameyer, P.W.; Newmark, R.L.; Vogel, T.A.

1987-09-01T23:59:59.000Z

82

Structure, Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site,  

Open Energy Info (EERE)

Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site, Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site, Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Structure, Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site, Dixie Valley, Nevada Author Gabriel L. Plank Published Journal Geothermal Resources Council Transactions, 1995 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Structure, Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site, Dixie Valley, Nevada Citation Gabriel L. Plank. 1995. Structure, Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site, Dixie Valley, Nevada. Geothermal Resources Council Transactions. 19: (!) . Retrieved from "http://en.openei.org/w/index.php?title=Structure,_Stratigraphy,_and_Tectonics_of_the_Dixie_Valley_Geothermal_Site,_Dixie_Valley,_Nevada&oldid=682622"

83

Geothermal Literature Review At Fish Lake Valley Area (Deymonaz...  

Open Energy Info (EERE)

Search Page Edit History Facebook icon Twitter icon Geothermal Literature Review At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL...

84

Clayton Valley Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Clayton Valley Geothermal Project Clayton Valley Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Clayton Valley Geothermal Project Project Location Information Coordinates 37.755┬░, -117.63472222222┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.755,"lon":-117.63472222222,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

85

Geothermal chemistry/exploration investigations at Dixie Valley, Nevada  

DOE Green Energy (OSTI)

Dixie Valley geothermal field has continuously produced electric power since 1988. At the request of Oxbow Geothermal Corp. and the US Department of Energy, the authors have organized an inter-agency team of investigators to examine several topics of concern regarding management and behavior of the resource. These topics include scaling of the injection system, recharge of the reservoir, geochemical monitoring of the reservoir, and development of increased fumarolic activity north of the power plant.

Goff, F.; Bergfeld, D.; Counce, D. [Los Alamos National Lab., NM (United States); Janik, C.J. [Geological Survey (United States); Bruton, C.J.; Nimz, G. [Lawrence Livermore National Lab., CA (United States)

1998-12-01T23:59:59.000Z

86

Field Mapping At Fish Lake Valley Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Fish Lake Valley Area (DOE GTP) Exploration...

87

Field Mapping At Gabbs Valley Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Gabbs Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Gabbs Valley Area (DOE GTP) Exploration Activity...

88

Near-Surface CO2 Monitoring And Analysis To Detect Hidden Geothermal Systems  

E-Print Network (OSTI)

dioxide flux at the Dixie Valley geothermal field, Nevada;volcanic system, USA Dixie Valley Geothermal Field, USAProvince system like the Dixie Valley (Nevada) geothermal

Lewicki, Jennifer L.; Oldenburg, Curtis M.

2005-01-01T23:59:59.000Z

89

Buffalo Valley Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Buffalo Valley Hot Springs Geothermal Area Buffalo Valley Hot Springs Geothermal Area (Redirected from Buffalo Valley Hot Springs Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Buffalo Valley Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (6) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.368333,"lon":-117.325,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

90

Long Valley Caldera Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Long Valley Caldera Geothermal Area Long Valley Caldera Geothermal Area (Redirected from Long Valley Caldera Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Long Valley Caldera Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Heat Source 8 Geofluid Geochemistry 9 NEPA-Related Analyses (3) 10 Exploration Activities (50) 11 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.778261,"lon":-119.4179324,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

91

Stragegies to Detect Hidden Geothermal Systems Based on Monitoring and Analysis of CO2 in the Near-Surface Environment  

E-Print Network (OSTI)

dioxide flux at the Dixie Valley geothermal field, Nevada;volcanic system, USA Dixie Valley Geothermal Field, USAProvince system like the Dixie Valley (Nevada) geothermal

Lewicki, Jennifer L.; Oldenburg, Curtis M.

2008-01-01T23:59:59.000Z

92

Smith Creek Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Smith Creek Valley Geothermal Area Smith Creek Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Smith Creek Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3128,"lon":-117.5493,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

93

Buffalo Valley Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Buffalo Valley Hot Springs Geothermal Area Buffalo Valley Hot Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Buffalo Valley Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (6) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.368333,"lon":-117.325,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

94

Fish Lake Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Fish Lake Valley Geothermal Area Fish Lake Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Fish Lake Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (22) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.86,"lon":-118.05,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

95

Long Valley Caldera Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Long Valley Caldera Geothermal Area Long Valley Caldera Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Long Valley Caldera Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Heat Source 8 Geofluid Geochemistry 9 NEPA-Related Analyses (3) 10 Exploration Activities (50) 11 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.778261,"lon":-119.4179324,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

96

West Valley Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Valley Reservoir Geothermal Area Valley Reservoir Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: West Valley Reservoir Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.19166667,"lon":-120.385,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

97

Indian Valley Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Valley Hot Springs Geothermal Area Valley Hot Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Indian Valley Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.14139,"lon":-120.93389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

98

Whirlwind Valley Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Whirlwind Valley Geothermal Project Whirlwind Valley Geothermal Project Project Location Information Coordinates 39.4375┬░, -113.87583333333┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.4375,"lon":-113.87583333333,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

99

High Valley Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

High Valley Geothermal Project High Valley Geothermal Project Project Location Information Coordinates 38.863611111111┬░, -122.80138888889┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.863611111111,"lon":-122.80138888889,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

100

Dixie Valley Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Dixie Valley Geothermal Project Dixie Valley Geothermal Project Project Location Information Coordinates 39.7223036┬░, -118.0616895┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.7223036,"lon":-118.0616895,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

North Valley Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

North Valley Geothermal Project North Valley Geothermal Project Project Location Information Coordinates 39.830833333333┬░, -119┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.830833333333,"lon":-119,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

102

Map showing geothermal resources of The Lake City-Surprise Valley Known Geothermal Resource Area, Modoc County, California  

DOE Green Energy (OSTI)

Geothermal data are summarized from published and unpublished geophysical, geochemical, and geologic reports on Surprise Valley prepared during the past 26 years. Particular emphasis is placed on a comprehensive structural interpretation of the west half of the valley that is based on map compilation of concealed faults that have been inferred from geophysical methods and exposed faults that can be seen in the field and/or on aerial photographs. The faults apparently control the location of modern geothermal activity.

Not Available

1981-01-01T23:59:59.000Z

103

Fish Lake Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon ┬╗ Fish Lake Valley Geothermal Area (Redirected from Fish Lake Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Fish Lake Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (22) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.86,"lon":-118.05,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

104

Structure, Stratigraphy, and Tectonics of the Dixie Valley Geothermal...  

Open Energy Info (EERE)

1995 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Structure, Stratigraphy, and Tectonics of the Dixie Valley Geothermal Site,...

105

Egs Exploration Methodology Project Using the Dixie Valley Geothermal...  

Open Energy Info (EERE)

2013 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Egs Exploration Methodology Project Using the Dixie Valley Geothermal...

106

Cuttings Analysis At Imperial Valley Geothermal Area (1976) | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon ┬╗ Cuttings Analysis At Imperial Valley Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Imperial Valley Geothermal Area (1976) Exploration Activity Details Location Imperial Valley Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the geologic environment of the geothermal area Notes The geologic environment of the particular areas of interest are described, including rock types, geologic structure, and other important parameters

107

Remote Sensing For Geothermal Exploration Over Buffalo Valley, Nv | Open  

Open Energy Info (EERE)

Sensing For Geothermal Exploration Over Buffalo Valley, Nv Sensing For Geothermal Exploration Over Buffalo Valley, Nv Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Remote Sensing For Geothermal Exploration Over Buffalo Valley, Nv Details Activities (1) Areas (1) Regions (0) Abstract: Remote sensing is a useful tool for identifying the surface expression of geothermal systems based on characteristic mineral assemblages that result from hydrothermal alteration (Kratt et al., 2004; Vaughan et al., 2005). Buffalo Valley in Pershing and Lander Counties, Nevada, is an area of high potential for geothermal energy production (Shevenell et al., 2004). Geothermal heat is expressed by several hot springs with surface temperatures of up to 79┬░C (Olmsted et al., 1975). The hot springs and a chain of Quaternary cinder cones appear to be

108

Petrography of late cenozoic sediments, Raft River geothermal field, Idaho  

Open Energy Info (EERE)

of late cenozoic sediments, Raft River geothermal field, Idaho of late cenozoic sediments, Raft River geothermal field, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Petrography of late cenozoic sediments, Raft River geothermal field, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; RAFT RIVER VALLEY; GEOTHERMAL FIELDS; PETROGRAPHY; BIOTITE; CALCITE; CLAYS; LIMESTONE; PYRITE; SANDSTONES; SEDIMENTS; SHALES; VOLCANIC ROCKS; ZEOLITES; ALKALINE EARTH METAL COMPOUNDS; CALCIUM CARBONATES; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATE ROCKS; CARBONATES; CHALCOGENIDES; IDAHO; IGNEOUS ROCKS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; IRON COMPOUNDS; IRON SULFIDES; MICA; MINERALS; NORTH AMERICA; ORES; OXYGEN COMPOUNDS; PACIFIC NORTHWEST REGION; PYRITES; ROCKS; SEDIMENTARY ROCKS; SULFIDES; SULFUR COMPOUNDS;

109

Evaluation of a Distributed Fiber-Optic Temperature Sensor for Logging Wellbore Temperature at the Beowawe and Dixie Valley Geothermal Fields  

DOE Green Energy (OSTI)

A distributed temperature sensor (DTS) system, utilizing Raman backscattering to measure temperatures of optical fiber, has recently been installed in production wells at the Beowawe and Dixie Valley, NV, geothermal fields. The system has the potential to reduce the cost and complexity of acquiring temperature logs. However, the optical transmission of the initial fibers installed at Beawawe degraded over several months, resulting in temperature errors. Optical transmission spectra of the failed fibers indicate hydroxide contamination via hydrogen diffusion as a possible failure mechanism. Additional fibers with coatings designed to resist hydrogen diffusion were installed and have maintained their optical transmission over several months in the 340-360 F Beowawe wells. The same fibers installed in a 470 F Dixie Valley well rapidly failed. Possible methods to prevent fiber degradation include encasing the fiber in metallic buffer layer that resists hydrogen diffusion. Additional methods to correct temperature errors include using additional optical sources to measure fiber losses at the operating wavelengths. Although the DTS system is expected to have one degree F accuracy, we have observed an average accuracy of five degrees. The fiber connections appear to be the uncertainty source. Using connectors with greater stability should restore accuracy.

Smithpeter, Colin; Norman, Randy; Krumhansl, James; Benoit, Dick; Thompson, Steve

1999-07-19T23:59:59.000Z

110

Pumpernickel Valley Geothermal Project Thermal Gradient Wells | Open Energy  

Open Energy Info (EERE)

Valley Geothermal Project Thermal Gradient Wells Valley Geothermal Project Thermal Gradient Wells Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Pumpernickel Valley Geothermal Project Thermal Gradient Wells Details Activities (4) Areas (1) Regions (0) Abstract: The Pumpernickel Valley geothermal project area is located near the eastern edge of the Sonoma Range and is positioned within the structurally complex Winnemucca fold and thrust belt of north-central Nevada. A series of approximately north-northeast-striking faults related to the Basin and Range tectonics are superimposed on the earlier structures within the project area, and are responsible for the final overall geometry and distribution of the pre-existing structural features on the property. Two of these faults, the Pumpernickel Valley fault and Edna Mountain fault,

111

Resistivity studies of the Imperial Valley geothermal area, California |  

Open Energy Info (EERE)

Resistivity studies of the Imperial Valley geothermal area, California Resistivity studies of the Imperial Valley geothermal area, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Resistivity studies of the Imperial Valley geothermal area, California Abstract Electrical resistivity has been employed for mapping thehnperial Valley of California as part of a multi-disciplinaryapproach to assess its geothermal potential. Vertical and lateralresistivity changes were determined from Schlumherger deptilsoundings with effective probing depths up to 8000 ft.Chie/ conclusions were: (1) Known geothermal anomaliesappear as residual resistivity lows superimposed on the regionalgradient which decreases northwest.ward from the southeastcorner of the Imperial Valley, near the Colorado River, tovalues about two orders of magnitude lower at the Salton

112

Surprise Valley Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon ┬╗ Surprise Valley Hot Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Surprise Valley Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.53333,"lon":-120.07667,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

113

Isotopic Analysis- Fluid At Sierra Valley Geothermal Area (1990) | Open  

Open Energy Info (EERE)

Isotopic Analysis- Fluid At Sierra Valley Geothermal Area (1990) Isotopic Analysis- Fluid At Sierra Valley Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Sierra Valley Geothermal Area (1990) Exploration Activity Details Location Sierra Valley Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the recharge of the area Notes Hydrogen and oxygen isotope data on waters of Coso thermal and nonthermal waters were studied. Hydrogen and oxygen isotopes do not uniquely define the recharge area for the Coso geothermal system but strongly suggest Sierran recharge with perhaps some local recharge. References Whelan, J. A. (1 September 1990) Water geochemistry study of

114

Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area  

Open Energy Info (EERE)

Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area (1990) Exploration Activity Details Location Indian Valley Hot Springs Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the recharge of the area Notes Hydrogen and oxygen isotope data on waters of Coso thermal and nonthermal waters were studied. Hydrogen and oxygen isotopes do not uniquely define the recharge area for the Coso geothermal system but strongly suggest Sierran recharge with perhaps some local recharge. References

115

Isotopic Analysis- Fluid At Rose Valley Geothermal Area (1990) | Open  

Open Energy Info (EERE)

Isotopic Analysis- Fluid At Rose Valley Geothermal Area (1990) Isotopic Analysis- Fluid At Rose Valley Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Rose Valley Geothermal Area (1990) Exploration Activity Details Location Rose Valley Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the recharge of the area Notes Hydrogen and oxygen isotope data on waters of Coso thermal and nonthermal waters were studied. Hydrogen and oxygen isotopes do not uniquely define the recharge area for the Coso geothermal system but strongly suggest Sierran recharge with perhaps some local recharge. References Whelan, J. A. (1 September 1990) Water geochemistry study of

116

Strategies for Detecting Hidden Geothermal Systems by Near-Surface Gas Monitoring  

E-Print Network (OSTI)

Conceptual models of the Dixie Valley, Nevada Geothermaldioxide flux at the Dixie Valley geothermal field, Nevada;by faulting. At the Dixie Valley Geothermal Field, USA, CO 2

Lewicki, Jennifer L.; Oldenburg, Curtis M.

2004-01-01T23:59:59.000Z

117

Electromagnetic soundings for geothermal resources in Dixie Valley, Nevada  

DOE Green Energy (OSTI)

An electromagnetic (EM) sounding survey was performed over a region encompassing the Dixie Valley geothermal field to map the subsurface resistivity in the geothermal field and the surrounding area. The EM survey, consisting of 19 frequency-domain depth soundings made with the LBL EM-60 system, was undertaken to explore a narrow region adjacent to the Stillwater Range to a depth of 2 to 3 km. Lithologic and well log resistivity information from well 66-21 show that for EM interpretation the section can be reduced to a three-layer model consisting of moderately resistive alluvial sediments, low resistivity lacustrine sediments, and high resistivity Tertiary volcanics and older rocks. This three layer model was used as a starting point in interpreting EM sounding data. Variations in resistivity and thickness provided structural information and clues to the accumulation of geothermal fluids. The interpreted soundings reveal a 1 to 1.5-km-deep low-resistivity zone spatially associated with the geothermal field. The shallow depth suggests that the zone detected is either fluid leakage or hydrothermal alteration, rather than high-temperature reservoir fluids. The position of the low-resistivity zone also conforms to changes in depth to the high resistivity basal layer, suggesting that faulting is a control on the location of productive intervals. 10 refs., 7 figs.

Wilt, M.J.; Goldstein, N.E.

1985-03-01T23:59:59.000Z

118

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir  

Open Energy Info (EERE)

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Abstract Temperature, pressure, and spinner (TPS) logs have been recorded in several wells from the Dixie Valley Geothermal Reservoir in west central Nevada. A variety of well-test analyses has been performed with these data to quantify the hydrologic properties of this fault-dominated geothermal resource. Four complementary analytical techniques were employed, their individual application depending upon availability and quality of data and validity of scientific assumptions. In some instances, redundancy in

119

Exploration ofr geothermal resources in Dixie Valley, Nevada  

Science Conference Proceedings (OSTI)

A case history of SUNEDCO's exploratory efforts, which ultimately led to the drilling and discovery of the Dixie Valley goethermal field, is presented. The geochemistry from three active lot springs in the area: Dixie Hot Springs, South Hot Springs, and Hyder Hot Springs, was examined. Two heat flow drilling programs were conducted at Dixie Hot Springs consisting of 45 temperature gradient holes ranging in depth from 30 to 1500 ft. From this program a heat-flow anomaly was mapped extending along the Stillwater Range front in which temperature gradients are greater than 100/sup 0/c/Km. in 1978, the number 1 SW Lamb well was drilled on a 152 acre farmout from Chevron. The well was completed as a geothermal producer in a zone of fractured volcanic rocks. Since then, five additional geothermal producing wells were completed within the anomalous area. (MJF)

Parchman, W.L.; Knox, J.W.

1981-06-01T23:59:59.000Z

120

Electromagnetic soundings over a geothermal reservoir in Dixie Valley, Nevada  

DOE Green Energy (OSTI)

An electromagnetic (EM) sounding survey was performed over a region encompassing the Dixie Valley geothermal field with the purpose of mapping the subsurface resistivity in the geothermal field and its surroundings. The EM survey consisted of 19 frequency-domain depth soundings made with the EM-60 system using three separate horizontal-loop transmitters, and was designed to explore a narrow region adjacent to the Stillwater Range to a depth of 2 to 3 k. Most sounding curves could be fitted to three-layer resistivity models. The surface layer is moderately conductive (10 to 15 ohm-m), has a maximum thickness of 500 m, and consists mainly of alluvial fan and lake sediments. More conductive zones are associated with hydrothermally altered rocks; a resistivity high may be associated with siliceous hot spring deposits. The conductive second layer (2 to 5 ohm-m) varies in thickness from 400 to 800 m and thickens toward the center of the valley. This layer probably consists of lacustrine sediments saturated with saline waters. Local resistivity lows observed in the second layer may be related to elevated subsurface temperatures. This layer may act as a cap rock for the geothermal system. Resistivities of the third layer are high (50 to 100 ohm-m) except in a narrow 5-km band paralleling the range front. This low-resistivity zone, within volcanic rocks, correlates well in depth and location with reported zones of geothermal fluid production. It also seems to correlate with the western margin of a concealed graben structure previously inferred from other geophysical data.

Wilt, M.J.; Goldstein, N.E.

1983-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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121

Coachella Valley Fish Farm Aquaculture Low Temperature Geothermal Facility  

Open Energy Info (EERE)

Coachella Valley Fish Farm Aquaculture Low Temperature Geothermal Facility Coachella Valley Fish Farm Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Coachella Valley Fish Farm Aquaculture Low Temperature Geothermal Facility Facility Coachella Valley Fish Farm Sector Geothermal energy Type Aquaculture Location Mecca, California Coordinates 33.571692┬░, -116.0772244┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

122

Indian Valley Hospital Space Heating Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Valley Hospital Space Heating Low Temperature Geothermal Facility Valley Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Indian Valley Hospital Space Heating Low Temperature Geothermal Facility Facility Indian Valley Hospital Sector Geothermal energy Type Space Heating Location Greenville, California Coordinates 40.1396126┬░, -120.9510675┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

123

Langel Valley Space Heating Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Langel Valley Space Heating Low Temperature Geothermal Facility Langel Valley Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Langel Valley Space Heating Low Temperature Geothermal Facility Facility Langel Valley Sector Geothermal energy Type Space Heating Location Bonanza, Oregon Coordinates 42.1987607┬░, -121.4061076┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

124

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal...  

Open Energy Info (EERE)

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper:...

125

Data Acquisition-Manipulation At Imperial Valley Geothermal Area (1982) |  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon ┬╗ Data Acquisition-Manipulation At Imperial Valley Geothermal Area (1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Imperial Valley Geothermal Area (1982) Exploration Activity Details Location Imperial Valley Geothermal Area Exploration Technique Data Acquisition-Manipulation Activity Date 1982 Usefulness useful DOE-funding Unknown Exploration Basis Develop parameters to identify geothermal region Notes Statistical methods are outlined to separate spatially, temporally, and magnitude-dependent portions of both the random and non-random components

126

Microseisms in geothermal exploration: studies in Grass Valley, Nevada  

DOE Green Energy (OSTI)

Frequency-wavenumber (f-k) spectra of seismic noise in the bands 1 less than or equal to f less than or equal to 10 Hz in frequency and parallel bar k parallel bar less than or equal to 35.7 cycles/km in wavenumber, measured at several places in Grass Valley, Nevada, exhibit numerous features which can be correlated with variations in surface geology and sources associated with hot spring activity. Exploration techniques for geothermal reservoirs, based upon the spatial distribution of the amplitude and frequency characteristics of short-period seismic noise, are applied and evaluated in a field program at a potential geothermal area in Grass Valley, Nevada. A detailed investigation of the spatial and temporal characteristics of the noise field was made to guide subsequent data acquisition and processing. Contour maps of normalized noise-level derived from carefully sampled data are dominated by the hot spring noise source and the generally high noise levels outlining the regions of thick alluvium. Major faults are evident when they produce a shallow lateral contrast in rock properties. Conventional seismic noise mapping techniques cannot differentiate noise anomalies due to buried seismic sources from those due to shallow geological effects. The noise radiating from a deep reservoir ought to be evident as body waves of high phase velocity with time-invariant source azimuth. A small two-dimensional array was placed at 16 locations in the region to map propagation parameters. The f-k spectra reveal local shallow sources, but no evidence for a significant body wave component in the noise field was found. With proper data sampling, array processing provides a powerful method for mapping the horizontal component of the vector phase velocity of the noise field. In Grass Valley, and probably in most areas, the 2 to 10 Hz microseismic field is predominantly fundamental mode Rayleigh waves controlled by the very shallow structure.

Liaw, A.L.C.

1977-11-01T23:59:59.000Z

127

Railroad Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Power Plants (0) Projects (0) Activities (1) NEPA(0) Geothermal Area Profile Location Nevada Exploration Region Northern Basin and Range Geothermal Region GEA Development Phase...

128

Egs Exploration Methodology Project Using the Dixie Valley Geothermal  

Open Energy Info (EERE)

Egs Exploration Methodology Project Using the Dixie Valley Geothermal Egs Exploration Methodology Project Using the Dixie Valley Geothermal System, Nevada, Status Update Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Egs Exploration Methodology Project Using the Dixie Valley Geothermal System, Nevada, Status Update Authors Joe Iovenitti, Jon Sainsbury, Ileana Tibuleac, Robert Karlin, Philip Wannamaker, Virginia Maris, David Blackwell, Mahesh Thakur, Fletcher H. Ibser, Jennifer Lewicki, B. Mack. Kennedy and Michael Swyer Conference Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University; Stanford, California; 2013 Published Publisher Not Provided, 2013 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Egs Exploration Methodology Project Using the

129

Update On Geothermal Exploration At Fort Bidwell, Surprise Valley  

Open Energy Info (EERE)

Geothermal Exploration At Fort Bidwell, Surprise Valley Geothermal Exploration At Fort Bidwell, Surprise Valley California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Update On Geothermal Exploration At Fort Bidwell, Surprise Valley California Details Activities (1) Areas (1) Regions (0) Abstract: A fourth exploration well within Fort Bidwell Indian Community (FBIC) lands has been successfully drilled to a total depth of 4,670 feet. Mud return temperatures and cuttings analysis are consistent with the hydrothermal model on which the well location was based. Wireline surveys have encountered an obstruction just below the casing shoe, and further evaluation of this well and resource awaits clean-out and testing activities. Author(s): Joe LaFleur, Anna Carter, Karen Moore, Ben Barker, Paul

130

Exploration for Geothermal Resources in Dixie Valley, Nevada- Case History  

Open Energy Info (EERE)

in Dixie Valley, Nevada- Case History in Dixie Valley, Nevada- Case History Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Exploration for Geothermal Resources in Dixie Valley, Nevada- Case History Abstract After several years of reconnaissance geology in Nevada, an exploration program to evaluate the geothermal resource potential of Dixie Valley was begun in 1974. Between 1974 and 1978 Sunoco Energy Development Co. conducted two heat-flow drilling programs, a resistivity survey, a seismic emission study, a ground noise survey, two magnetotelluric surveys, a hydrology study, and a surface geology survey. The synthesis of the data resulting from these projects into the regional geologic framework led to the acquisition of geothermal resource leases from fee property owners,

131

Recency Of Faulting And Neotechtonic Framework In The Dixie Valley...  

Open Energy Info (EERE)

Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Jump to: navigation, search GEOTHERMAL...

132

New River Geothermal Research Project, Imperial Valley, California  

Open Energy Info (EERE)

Research Project, Imperial Valley, California Research Project, Imperial Valley, California Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title New River Geothermal Research Project, Imperial Valley, California Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description Current models for the tectonic evolution of the Salton Trough provide a refined geologic model to be tested within the New River system and subsequently applied to additional rift dominated settings. Specific concepts to be included in model development include: rifting as expressed by the Brawley Seismic zone setting, northwest extensional migration, detachment faulting and a zone of tectonic subsidence as defining permeability zones; and evaluation and signature identification of diabase dike systems. Lateral continuous permeable sand units will be demonstrated through integration of existing well records with results of drilling new wells in the area.

133

Surprise Valley Hospital Space Heating Low Temperature Geothermal Facility  

Open Energy Info (EERE)

Hospital Space Heating Low Temperature Geothermal Facility Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Surprise Valley Hospital Space Heating Low Temperature Geothermal Facility Facility Surprise Valley Hospital Sector Geothermal energy Type Space Heating Location Cedarville, California Coordinates 41.5290606┬░, -120.1732781┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

134

Hyder Valley Aquaculture Low Temperature Geothermal Facility | Open Energy  

Open Energy Info (EERE)

Aquaculture Low Temperature Geothermal Facility Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Hyder Valley Aquaculture Low Temperature Geothermal Facility Facility Hyder Valley Sector Geothermal energy Type Aquaculture Location Gila Bend, Arizona Coordinates 32.9478236┬░, -112.7168305┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

135

Valley Fish Farms Aquaculture Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Fish Farms Aquaculture Low Temperature Geothermal Facility Fish Farms Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Valley Fish Farms Aquaculture Low Temperature Geothermal Facility Facility Valley Fish Farms Sector Geothermal energy Type Aquaculture Location Imperial, California Coordinates 32.8475528┬░, -115.5694391┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

136

Investigation of Low-Temperature Geothermal Resources in the Sonoma Valley Area, California  

DOE Green Energy (OSTI)

The Sonoma Valley area contains low-temperature geothermal resources (20 C {le} T {le} 90 C) having the potential for useful development. Sonoma Valley residents, local governments and institutions, private developers, and manufacturers may be able to utilize the geothermal resources as an alternate energy source. Historically, there have been at least six geothermal spring areas developed in the Sonoma Valley. Four of these (Boyes Hot Springs, Fetter's Hot Springs, Agua Caliente Springs, and the Sonoma State Hospital warm spring) lie on a linear trend extending northwestward from the City of Sonoma. Detailed geophysical surveys delineated a major fault trace along the east side of the Sonoma Valley in association with the historic geothermal areas. Other fault traces were also delineated revealing a general northwest-trending structural faulting fabric underlying the valley. Water wells located near the ''east side'' fault have relatively high boron concentrations. Geochemical evidence may suggest the ''east side'' fault presents a barrier to lateral fluid migration but is a conduit for ascending fluids. Fifteen of the twenty-nine geothermal wells or springs located from literature research or field surveys are located along or east of this major fault in a 10 km (6.2 miles) long, narrow zone. The highest recorded water temperature in the valley appears to be 62.7 C (145 F) at 137.2 meters (450 feet) in a well at Boyes Hot Springs. This is consistent with the geothermal reservoir temperature range of 52-77 C (126-171 F) indicated by geothermometry calculations performed on data from wells in the area. Interpretation of data indicates a low-temperature geothermal fluid upwelling or ''plume'', along the ''east side'' fault with subsequent migration into permeable aquifers predominantly within volcanic strata. It is quite likely other geothermal fluid ''plumes'' in association with faulting are present within the Sonoma Valley area. A 5.8 km{sup 2} geothermal zone, that parallels the fault trace, is delineated and is perhaps the most favorable area for further investigation and possible geothermal production.

Youngs, Leslie G.; Chapman, Rodger H.; Chase, Gordon W.; Bezore, Stephen P.; Majmundar, Hasu H.

1983-01-01T23:59:59.000Z

137

Geothermal hydrology of Warner Valley, Oregon: a reconnaissance study  

DOE Green Energy (OSTI)

Warner Valley and its southern extension, Coleman Valley, are two of several high-desert valleys in the Basin and Range province of south-central Oregon that contain thermal waters. At least 20 thermal springs, defined as having temperatures of 20/sup 0/C or more, issue from Tertiary basaltic flows and tuffs in and near the valleys. Many shallow wells also produce thermal waters. The highest measured temperature is 127/sup 0/C, reported from a well known as Crump geyser, at a depth of 200 meters. The hottest spring, located near Crump geyser, has a surface temperature of 78/sup 0/C. The occurrence of these thermal waters is closely related to faults and fault intersections in the graben and horst structure of the valleys. Chemical analyses show that the thermal waters are of two types: sodium chloride and sodium bicarbonate waters. Chemical indicators show that the geothermal system is a hot-water rather than a vapor-dominated system. Conductive heat flow in areas of the valley unaffected by hydrothermal convection is probably about 75 milliwatts per square meter. The normal thermal gradient in valley-fill dpeosits in these areas may be about 40/sup 0/C per kilometer. Geothermometers and mixing models indicate that temperatures of equilibration are at least 170/sup 0/C for the thermal components of the hotter waters. The size and location of geothermal reservoirs are unknown.

Sammel, E.A.; Craig, R.W.

1981-01-01T23:59:59.000Z

138

Correlation of wireline log characteristics with hydrothermal alteration and other reservoir properties of the Salton Sea and Westmorland geothermal fields, Imperial Valley, California, USA  

Science Conference Proceedings (OSTI)

A detailed study of wireline logs from 11 wells in the Salton Sea and Westmorland geothermal systems was undertaken in order to determine the effects of hydrothermal alteration on the response of electrical and gamma-gamma density well logs. For the Salton Sea geothermal field, definite correspondence between log responses and hydrothermal mineralogy is evident, which in turn is related to the physical properties of the rocks. Three hydrothermal and one unaltered zone can be identified from log data on shales. These are: (1) the unaltered montmorillonite zone (290/sup 0/ to 300/sup 0/C). The characteristic responses on well logs by which these zones are identified result primarily from changes in clay mineralogy of the shales and increases in density with progressive hydrothermal metamorphism. In the Westmorland geothermal field, differentiating mineral zones from log responses was only partially successful. However, analyses of both well log and petrologic data for wells Landers 1 and Kalin Farms 1 suggest that the former is heating up and the latter is cooling.

Muramoto, F.S.; Elders, W.A.

1984-05-01T23:59:59.000Z

139

Correlation of wireline log characteristics with hydrothermal alteration and other reservoir properties of the Salton Sea and Westmorland geothermal fields, Imperial Valley, California, USA  

DOE Green Energy (OSTI)

A detailed study of wireline logs from 11 wells in the Salton Sea and Westmorland geothermal systems was undertaken in order to determine the effects of hydrothermal alteration on the response of electrical and gamma-gamma density well logs. For the Salton Sea geothermal field, definite correspondence between log responses and hydrothermal mineralogy is evident, which in turn is related to the physical properties of the rocks. Three hydrothermal and one unaltered zone can be identified from log data on shales. These are: (1) the unaltered montmorillonite zone (<100/sup 0/ to 190/sup 0/C); (2) the illite zone (100/sup 0/ to 190/sup 0/C to 230/sup 0/ to 250/sup 0/C); (3) the chlorite zone (230/sup 0/ to 250/sup 0/C to 290/sup 0/ to 300/sup 0/C); and (4) the feldspar zone (>290/sup 0/ to 300/sup 0/C). The characteristic responses on well logs by which these zones are identified result primarily from changes in clay mineralogy of the shales and increases in density with progressive hydrothermal metamorphism. In the Westmorland geothermal field, differentiating mineral zones from log responses was only partially successful. However, analyses of both well log and petrologic data for wells Landers 1 and Kalin Farms 1 suggest that the former is heating up and the latter is cooling.

Muramoto, F.S.; Elders, W.A.

1984-05-01T23:59:59.000Z

140

Geothermal/Well Field | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon ┬╗ Geothermal/Well Field < Geothermal(Redirected from Well Field) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Well Fields and Reservoirs General Techniques Tree Techniques Table Regulatory Roadmap NEPA (45) Geothermal energy plant at The Geysers near Santa Rosa in Northern California, the world's largest electricity-generating hydrothermal geothermal development. Copyright ┬ę 1995 Warren Gretz Geothermal Well Fields discussion Groups of Well Field Techniques

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Cooperative geochemical investigation of geothermal resources in the Imperial Valley and Yuma areas. Final report  

DOE Green Energy (OSTI)

Preliminary studies indicate that the Imperial Valley has a large geothermal potential. In order to delineate additional geothermal systems a chemical and isotopic investigation of samples from water wells, springs, and geothermal wells in the Imperial Valley and Yuma areas was conducted. Na, K, and Ca concentrations of nearly 200 well water, spring water, hot spring, and geothermal fluid samples from the Imperial Valley area were measured by atomic absorption spectrophotometry. Fournier and Truesdell's function was determined for each water sample. Suspected geothermal areas are identified. Hydrogen and oxygen isotope abundances were determined in order to determine and to identify the source of the water in the Mesa geothermal system. (JGB)

Coplen, T.B.

1973-10-01T23:59:59.000Z

142

Petrology and stable isotope geochemistry of three wells in the Buttes area of the Salton Sea Geothermal Field, Imperial Valley, California, USA  

DOE Green Energy (OSTI)

A detailed investigation is reported of cuttings recovered from three wells in the Salton Sea geothermal field located at the southeast end of the Salton Sea, California. The wells, Magmamax No. 2, Magmamax No. 3, and Woolsey No. 1 penetrate 1340 m, 1200 m, and 730 m, respectively, of altered sandstones, siltstones, and shales of the Colorado River delta. The wells are located at the crest of a thermal anomaly, reach a maximum of 320/sup 0/C at 1070 m, and produce a brine containing approximately 250,000 mg/1 of dissolved solids.

Kendall, C.

1976-12-01T23:59:59.000Z

143

Geothermal Modeling of the Raft River Geothermal Field | Open Energy  

Open Energy Info (EERE)

Geothermal Modeling of the Raft River Geothermal Field Geothermal Modeling of the Raft River Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal Modeling of the Raft River Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: This interim report presents the results to date of chemical modeling of the Raft River KGRA. Earlier work indicated a northwest-southeast anomaly in the contours. Modeling techniques applied to more complete data allowed further definition of the anomaly. Models described in this report show the source of various minerals in the geothermal water. There appears to be a regional heat source that gives rise to uniform conductive heat flow in the region, but convective flow is concentrated near the upwelling in the Crook well vicinity. Recommendations

144

Dixie Valley - Geothermal Development in the Basin and Range | Open Energy  

Open Energy Info (EERE)

- Geothermal Development in the Basin and Range - Geothermal Development in the Basin and Range Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Dixie Valley - Geothermal Development in the Basin and Range Published Publisher Not Provided, Date Not Provided DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Dixie Valley - Geothermal Development in the Basin and Range Citation Dixie Valley - Geothermal Development in the Basin and Range [Internet]. [updated 2013/01/01;cited 2013/01/01]. Available from: http://www.geothermex.com/projects-dixie-valley.php Retrieved from "http://en.openei.org/w/index.php?title=Dixie_Valley_-_Geothermal_Development_in_the_Basin_and_Range&oldid=682561" Categories: References Geothermal References Uncited

145

Geothermal/Well Field | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Well Field Geothermal/Well Field < Geothermal Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Well Fields and Reservoirs General Techniques Tree Techniques Table Regulatory Roadmap NEPA (42) Geothermal energy plant at The Geysers near Santa Rosa in Northern California, the world's largest electricity-generating hydrothermal geothermal development. Copyright ┬ę 1995 Warren Gretz Geothermal Well Fields discussion Groups of Well Field Techniques There are many different techniques that are utilized in geothermal well field development and reservoir maintenance depending on the region's geology, economic considerations, project maturity, and other considerations such as land access and permitting requirements. Well field

146

Climatology of air quality of Long Valley Geothermal Resource Area  

DOE Green Energy (OSTI)

The Long Valley Known Geothermal Resource Area is one of the more promising regions for development of a large-scale geothermal energy center. This report discusses the climatology and air quality of the area. Details are given on the temperatures, temperature inversions, and winds. Estimates are presented for the present air quality and future air quality during and following development of the resource area. Also discussed are project impact from added pollutants, noise, and precipitation augmentation. The major deleterious effects from development of the Long Valley Geothermal Resource Area appear to be due to increased dust loading during and following construction, and noise from production testing and potential well blowouts. Increased pollution from release of hydrogen sulfide and other pollutants associated with hot water geothermal wells seems to present no problems with regard to surrounding vegetation, potential contamination of Lake Crowley, and odor problems in nearby communities. Precipitation augmentation will probably increase the water level of Lake Crowley, at the expense of possible additional fogging and icing of nearby highways.

Peterson, K.R.; Palmer, T.Y.

1977-06-01T23:59:59.000Z

147

Geothermal emissions data base, Wairakei geothermal field  

DOE Green Energy (OSTI)

A database subset on the gaseous emissions from the Wairakei geothermal field is presented. Properties and states of the reservoir fluid such as flow rates, wellhead pressure, and enthalpy are included in the file along with the well name and constituent measurement. This subset is the result of an initial screening of the data covering 1965 to 1971, and new additions will be appended periodically to the file. The data is accessed by a database management system as are all other subsets in the file. Thereby, one may search the database for specific data requirements and print selective output. For example, one may wish to locate reservoir conditions for cases only when the level of the constituent exceeded a designated value. Data output is available in the form of numerical compilations such as the attached, or graphical displays disposed to paper, film or magnetic tape.

Schwartz, S.R. (comp.)

1978-04-01T23:59:59.000Z

148

Field Mapping At Raft River Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Raft River Geothermal Area (1980) Raft River Geothermal Area (1980) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Field Mapping Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Delineate the subsurface geology Notes The Raft River Valley occupies an upper Cenozoic structural basin filled with nearly 1600 m of fluvial silt, sand, and gravel. Rapid facies and thickness changes, steep initial dips (30 0C), and alteration make correlation of basin-fill depositional units very difficult. The Raft River geothermal system is a hot water convective system relying on deep circulation of meteoric water in a region of high geothermal gradients and open fractures near the base of the Tertiary basin fill. References Covington, H. R. (1 September 1980) Subsurface geology of the

149

Analysis of Injection-Induced Micro-Earthquakes in a Geothermal Steam Reservoir, The Geysers Geothermal Field, California  

E-Print Network (OSTI)

Geothermal Field, Monograph on The Geysers GeothermalField, Geothermal Resources Council, Special Report no. 17,Subsidence at The Geysers geothermal field, N. California

Rutqvist, J.

2008-01-01T23:59:59.000Z

150

Seismicity and seismic stress in the Coso Range, Coso geothermal field, and  

Open Energy Info (EERE)

Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian Wells Valley region, Southeast-Central California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian Wells Valley region, Southeast-Central California Details Activities (1) Areas (1) Regions (0) Abstract: The temporal and spatial distribution of seismicity in the Coso Range, the Coso geothermal field, and the Indian Wells Valley region of southeast-central California are discussed in this paper. An analysis of fault-related seismicity in the region led us to conclude that the Little Lake fault and the Airport Lake fault are the most significant seismogenic zones. The faulting pattern clearly demarcates the region as a transition

151

An Integrated Geophysical Study Of The Geothermal Field Of Tule...  

Open Energy Info (EERE)

Geothermal Field Of Tule Chek, Bc, Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Geophysical Study Of The Geothermal Field Of...

152

Near-Surface CO2 Monitoring And Analysis To Detect Hidden Geothermal Systems  

E-Print Network (OSTI)

flux at the Dixie Valley geothermal field, Nevada; relationssurface phenomena and the geothermal reservoirö, Chemicalapplication to volcanic- geothermal areas and landfillsö,

Lewicki, Jennifer L.; Oldenburg, Curtis M.

2005-01-01T23:59:59.000Z

153

Geothermal assessment of a portion of the Escalante Valley, Utah  

DOE Green Energy (OSTI)

In February 1981, the Utah geological and Mineral Survey (UGMS) contracted with the Department of Energy (DOE) to evaluate the geothermal potential of an area proposed for a possible Missile Experimental (MX) operations base in the Escalante Valley region of Utah. Exploration techniques employed included a temperature survey, chemical analysis of springs and wells, and temperature-depth measurements in holes of opportunity. The highest water temperatures recorded in the area, with the exceptions of a 60/sup 0/C (140/sup 0/F) geothermal exploration hole and Thermo Hot Springs (42 to 78/sup 0/C or 108 to 172/sup 0/F), were 27 and 28/sup 0/C (81 and 82/sup 0/F) at two wells located northwest of Zane, Utah.

Klauk, R.H.; Gourley, C.

1983-12-01T23:59:59.000Z

154

Mercury In Soils Of The Long Valley, California, Geothermal System | Open  

Open Energy Info (EERE)

In Soils Of The Long Valley, California, Geothermal System In Soils Of The Long Valley, California, Geothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Mercury In Soils Of The Long Valley, California, Geothermal System Details Activities (3) Areas (1) Regions (0) Abstract: An evaluation of the Hg distribution in soils of the Long Valley, California, geothermal area, was made. A1-horizon soil samples were collected utilizing a grid system from the resurgent dome area and the Long Valley area. In addition, samples were collected in five traverses across three fault systems and four traverses across east-west-oriented gullies to measure the importance of aspect. Additional samples were collected in an analysis of variance design to evaluate natural variability in soil composition with sampling interval distance. The primary objectives of this

155

Isotopic Analysis-Fluid At Long Valley Caldera Geothermal Area (1977) |  

Open Energy Info (EERE)

Fluid At Long Valley Caldera Geothermal Area (1977) Fluid At Long Valley Caldera Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis-Fluid At Long Valley Caldera Geothermal Area (1977) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique Isotopic Analysis-Fluid Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis Estimate deep reservoir temperature Notes The oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes have been tested. Methods are described to calculate the effects of boiling and dilution. The geothermometer, is applied to thermal systems of Yellowstone Park, Wyoming, Long Valley, California, and Raft River, Idaho to estimate deep reservoir temperatures

156

Total field aeromagnetic map of the Raft River known Geothermal Resource  

Open Energy Info (EERE)

field aeromagnetic map of the Raft River known Geothermal Resource field aeromagnetic map of the Raft River known Geothermal Resource Area, Idaho by the US Geological Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Total field aeromagnetic map of the Raft River known Geothermal Resource Area, Idaho by the US Geological Survey Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; MAGNETIC SURVEYS; MAPS; RAFT RIVER VALLEY; AERIAL SURVEYING; GEOTHERMAL RESOURCES; IDAHO; KGRA; FEDERAL REGION X; GEOPHYSICAL SURVEYS; NORTH AMERICA; RESOURCES; SURVEYS; USA Author(s): Geological Survey, Denver, CO (USA) Published: DOE Information Bridge, 1/1/1981 Document Number: Unavailable DOI: 10.2172/5456508 Source: View Original Report Aeromagnetic Survey At Raft River Geothermal Area (1981) Raft River Geothermal Area

157

3D Magnetotelluric characterization of the COSO Geothermal Field  

E-Print Network (OSTI)

model of the Coso geothermal field has been constructed. TheResistivity model of the Coso geothermal site compiled fromthe Department of Energy, Geothermal Program Office. MT data

Newman, Gregory A.; Hoversten, Michael; Gasperikova, Erika; Wannamaker, Philip E.

2005-01-01T23:59:59.000Z

158

3D Magnetotelluic characterization of the Coso Geothermal Field  

E-Print Network (OSTI)

130, 475-496. the Coso Geothermal Field, Proc.28 th Workshop on Geothermal Reservoir Engineering, Stanfords ratio and porosity at Coso geothermal area, California: J.

Newman, Gregory A.; Hoversten, G. Michael; Wannamaker, Philip E.; Gasperikova, Erika

2008-01-01T23:59:59.000Z

159

Geothermal Field Developments in Iceland  

SciTech Connect

The exploration and research carried out in conjunction with the exploitation of the various geothernal fields has vastly deepened our understanding of the hydrothermal systems in Inceland. They have proved to be more diverse with respect to physical state, chemical composition, hydrological properties, and geological control than previously thought. The purpose of the present paper is to review the present state of knowledge regarding the Icelandic geothermal systems, with emphasis on the production and reservoir engineering aspects.

Palmason, G.; Stefansson, V.; Thorhallsson, S.; Thorsteinsson, T.

1983-12-15T23:59:59.000Z

160

Integrated dense array and transect MT surveying at dixie valley geothermal  

Open Energy Info (EERE)

dense array and transect MT surveying at dixie valley geothermal dense array and transect MT surveying at dixie valley geothermal area, Nevada- structural controls, hydrothermal alteration and deep fluid sources Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Integrated dense array and transect MT surveying at dixie valley geothermal area, Nevada- structural controls, hydrothermal alteration and deep fluid sources Authors Philip E. Wannamaker, William M. Doerner and Derrick P. Hasterok Conference proceedings, 32th workshop on geothermal reservoir Engineering, Stanford University; Stanford University; 2007 Published Publisher Not Provided, 2007 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Integrated dense array and transect MT surveying at dixie valley geothermal area, Nevada- structural controls, hydrothermal

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Investigation of ecosystems impacts from geothermal development in Imperial Valley, California  

DOE Green Energy (OSTI)

A summary of three years of field ecological investigation in Imperial Valley Environmental Program is presented. The potential terrestrial habitat impacts of geothermal development are discussed for shorebirds and waterfowl habitat, the endangered clapper rail, powerline corridors, noise effects, animal trace element burdens, and the desert community. Aquatic habitats are discussed in terms of Salton Sea salinity, effects of geothermal brine discharges to the Salton Sea, trace element baselines, and potential toxicity of brine spills in freshwater. Studies of impacts on agriculture involved brine movement in soil, release of trace metals, trace element baselines in soil and plants, water requirements of crops, and H{sub 2}S effects on crop production in the presence of CO{sub 2} and ozone.

Shinn, J.H.; Ireland, R.R.; Kercher, J.R.; Koranda, J.J.; Tompkins, G.A.

1979-07-13T23:59:59.000Z

162

Geothermal environmental studies, Heber Region, Imperial Valley, California. Environmental baseline data acquisition. Final report  

DOE Green Energy (OSTI)

The Electric Power Research Institute (EPRI) has been studying the feasibility of a Low Salinity Hydrothermal Demonstration Plant as part of its Geothermal Energy Program. The Heber area of the Imperial Valley was selected as one of the candidate geothermal reservoirs. Documentation of the environmental conditions presently existing in the Heber area is required for assessment of environmental impacts of future development. An environmental baseline data acquisition program to compile available data on the environment of the Heber area is reported. The program included a review of pertinent existing literature, interviews with academic, governmental and private entities, combined with field investigations and meteorological monitoring to collect primary data. Results of the data acquisition program are compiled in terms of three elements: the physical, the biological and socioeconomic settings.

Not Available

1977-02-01T23:59:59.000Z

163

Subsidence and uplift at Heber Geothermal field, California  

SciTech Connect

Heber Geothermal field is in the Imperial Valley near the City of Heber, California, about 3 1/2 miles north of the Mexican border. The field is at the southern end of a network of irrigated agricultural fields extending across the valley floor. The Heber geothermal system is circular, producing water of moderate temperature (360{degrees}F) and low-salinity (13,000-14,000 ppm TDS). In cross section, the geothermal system resembles a lopsided mushroom. The system has three major permeability units: capping clays form 500 to 1800 feet; a high-matrix-permeability, deltaic-sandstone outflow reservoir from 1,800 to 5,500 feet; and feeder faults and fractures in indurated sediments below 5,500 feet. The deltaic sandstones were deposited by the ancestral Colorado River. As both power plants continue operating in Heber field, the need persists to monitor subsidence and uplift. The field`s subsidence bowl is not expected to expand significantly, but some small changes are expected due to pressure changes caused by production for the SIGC binary power plant. The three SIGC injection wells, located between the production areas for the two power plants, will be managed for adequate reservoir pressure support.

Boardman, T.S.

1996-01-01T23:59:59.000Z

164

Geothermal Literature Review At Fish Lake Valley Area (Deymonaz, Et Al.,  

Open Energy Info (EERE)

Deymonaz, Et Al., Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish Lake Valley Area Exploration Technique Geothermal Literature Review Activity Date Usefulness not indicated DOE-funding Unknown Notes (1) Assembly and review of relevant published and proprietary literature and previous geothermal investigations in the region; References John Deymonaz, Jeffrey G. Hulen, Gregory D. Nash, Alex Schriener (2008) Esmeralda Energy Company Final Scientific Technical Report, January 2008, Emigrant Slimhole Drilling Project, Doe Gred Iii (De-Fc36-04Go14339) Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Literature_Review_At_Fish_Lake_Valley_Area_(Deymonaz,_Et_Al.,_2008)&oldid=510804"

165

GEOTHERMAL RESOURCE AND RESERVOIR INVESTIGATIONS OF U.S. BUREAU OF RECLAMATION LEASEHOLDS AT EAST MESA, IMPERIAL VALLEY, CALIFORNIA  

E-Print Network (OSTI)

document. LBL-7094 UC-66~1 GEOTHERMAL RESOURCE AND RESERVOIRInc. , 1976. Study of the geothermal reservoir underlyingtest, 1976, East Mesa geothermal field in California.

2009-01-01T23:59:59.000Z

166

IN SEARCH FOR THERMAL ANOMALIES IN THE COSO GEOTHERMAL FIELD...  

Open Energy Info (EERE)

IN SEARCH FOR THERMAL ANOMALIES IN THE COSO GEOTHERMAL FIELD (CALIFORNIA) USING REMOTE SENSING AND FIELD DATA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

167

MICROSEISMS IN GEOTHERMAL EXPLORATION: STUDIES IN GRASS VALLEY, NEVADA  

E-Print Network (OSTI)

period seismic noise (T>30 sec) . . . 2.5 Geothermal ground226. Clacy, G.R.T. ? 1968, Geothermal ground noise amplitudestudies at the Cos0 geothermal area, China Lake, California:

Liaw, A.L.C.

2011-01-01T23:59:59.000Z

168

Geothermal resources and conflicting concerns in the Alvord Valley, Oregon: an update  

DOE Green Energy (OSTI)

The geothermal resource potential of the Alvord Valley is among the highest in Oregon. However, environmental concerns, litigation, and administrative requirements have delayed exploration for and development of this resource. Present estimates indicate that deep exploratory drilling may not take place on Federal lands in the Alvord Valley until 1982.

Wassinger, C.E.; Koza, D.M.

1980-01-01T23:59:59.000Z

169

Assessment of geothermal development in the Imperial Valley of California. Volume 1. Environment, health, and socioeconomics  

DOE Green Energy (OSTI)

Utilization of the Imperial Valley's geothermal resources to support energy production could be hindered if environmental impacts prove to be unacceptable or if geothermal operations are incompatible with agriculture. To address these concerns, an integrated environmental and socioeconomic assessment of energy production in the valley was prepared. The most important impacts examined in the assessment involved air quality changes resulting from emissions of hydrogen sulfide, and increases in the salinity of the Salton Sea resulting from the use of agricultural waste waters for power plant cooling. The socioeconomics consequences of future geothermal development will generally be beneficial. (MHR)

Layton, D. (ed.)

1980-07-01T23:59:59.000Z

170

Geotechnical environmental aspects of geothermal power generation at Herber, Imperial Valley, California  

DOE Green Energy (OSTI)

The feasibility of constructing a 25-50 MWe geothermal power plant using low salinity hydrothermal fluid as the energy source was assessed. Here, the geotechnical aspects of geothermal power generation and their relationship to environmental impacts in the Imperial Valley of California were investigated. Geology, geophysics, hydrogeology, seismicity and subsidence are discussed in terms of the availability of data, state-of-the-art analytical techniques, historical and technical background and interpretation of current data. Estimates of the impact of these geotechnical factors on the environment in the Imperial Valley, if geothermal development proceeds, are discussed.

Not Available

1976-10-01T23:59:59.000Z

171

EA for Well Field Development at Patua Geothermal Area -  

Open Energy Info (EERE)

for Well Field Development at Patua Geothermal Area - for Well Field Development at Patua Geothermal Area - DOI-BLM-NV-C010-2011-00016-EA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home NEPA Document Collection for: EA for Well Field Development at Patua Geothermal Area - DOI-BLM-NV-C010-2011-00016-EA EA at Patua Geothermal Area for Geothermal/Exploration, Geothermal/Well Field, Patua Geothermal Project Phase II General NEPA Document Info Energy Sector Geothermal energy Environmental Analysis Type EA Applicant Gradient Resources Geothermal Area Patua Geothermal Area Project Location Fernley, Nevada Project Phase Geothermal/Exploration, Geothermal/Well Field Techniques Drilling Techniques, Thermal Gradient Holes Time Frame (days) NEPA Process Time 327 Participating Agencies Lead Agency BLM Funding Agency none provided

172

The Coso geothermal field: A nascent metamorphic core complex | Open Energy  

Open Energy Info (EERE)

The Coso geothermal field: A nascent metamorphic core complex The Coso geothermal field: A nascent metamorphic core complex Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: The Coso geothermal field: A nascent metamorphic core complex Abstract Investigation of the Coso Range using seismicity, gravity, and geochemistry of rocks and fluids, supports the interpretation that the structure hosting the geothermal resource is a nascent metamorphic core complex. The structural setting is a releasing bend in a dextral strike-slip system that extends from the Indian Wells Valley northward into the Owens Valley. This tectonic setting results in NW-directed transtension, which is accommodated by normal and strike-slip faulting of the brittle upper 4-6 km of the crust, and shearing and ductile stretching below this depth, accompanied by

173

Seismic refraction investigation of the Salton Sea geothermal area, Imperial Valley, California  

DOE Green Energy (OSTI)

Seven seismic refraction profiles and four long-distance refraction shots have been used to investigate the Salton Sea geothermal area. From these data, two models of the geothermal and adjacent area are proposed. Model 1 proposes a basement high within the geothermal area trending parallel to the axis of the Imperial Valley. Model 2 assumes a horizontal basement in the E-W direction, and proposes a seismic velocity gradient that increases the apparent basement velocity from east to west approximately 15% within the geothermal area. Both models propose basement dip of 3 degrees to the south, yielding a thickness of sediments of 6.6 km near Brawley, California, in the center of the Imperial Valley. Based on offsets inferred in the sedimentary seismic layers of the geothermal area, two NW-SE trending fault zones are proposed.

Frith, R.B.

1978-12-01T23:59:59.000Z

174

Characteristics of geothermal wells located in the Salton Sea geothermal field, Imperial County, California  

DOE Green Energy (OSTI)

A summary is given of the geophysical, geochemical, and geothermal characteristics of wells located in the Salton Sea Geothermal Field. Based on the geothermal characteristics of the wells, a subsurface heat profile was developed for the entire geothermal field. Maps of temperature contours for specified depths throughout the field were also drawn.

Palmer, T.D.

1975-12-15T23:59:59.000Z

175

Structural interpretation of the Coso geothermal field. Summary...  

Open Energy Info (EERE)

interpretation of the Coso geothermal field. Summary report, October 1986-August 1987 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Structural interpretation...

176

Three-dimensional anatomy of a geothermal field, Coso, Southeast...  

Open Energy Info (EERE)

California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Three-dimensional anatomy of a geothermal field, Coso, Southeast-Central California...

177

Field Mapping At Mccoy Geothermal Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Mccoy Geothermal Area (DOE GTP) Exploration Activity Details Location Mccoy Geothermal Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding...

178

An Updated Conceptual Model Of The Travale Geothermal Field Based...  

Open Energy Info (EERE)

Travale Geothermal Field Based On Recent Geophysical And Drilling Data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Updated Conceptual Model Of...

179

FLUID GEOCHEMISTRY AT THE RAFT RIVER GEOTHERMAL FIELD, IDAHO...  

Open Energy Info (EERE)

FLUID GEOCHEMISTRY AT THE RAFT RIVER GEOTHERMAL FIELD, IDAHO- NEW DATA AND HYDROGEOLOGICAL IMPLICATIONS Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference...

180

Total field aeromagnetic map of the Raft River known Geothermal...  

Open Energy Info (EERE)

field aeromagnetic map of the Raft River known Geothermal Resource Area, Idaho by the US Geological Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report:...

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Field Mapping At Fish Lake Valley Area (Deymonaz, Et Al., 2008) | Open  

Open Energy Info (EERE)

Fish Lake Valley Area (Deymonaz, Et Al., 2008) Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish Lake Valley Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown Notes (2) detailed geologic mapping of the Emigrant Miocene sedimentary basin and surrounding Paleozoic basement rocks; References John Deymonaz, Jeffrey G. Hulen, Gregory D. Nash, Alex Schriener (2008) Esmeralda Energy Company Final Scientific Technical Report, January 2008, Emigrant Slimhole Drilling Project, Doe Gred Iii (De-Fc36-04Go14339) Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Fish_Lake_Valley_Area_(Deymonaz,_Et_Al.,_2008)&oldid=510737"

182

SUMMARY OF RESERVOIR ENGINEERING DATA: WAIRAKEI GEOTHERMAL FIELD, NEW ZEALAND  

E-Print Network (OSTI)

Grange, L. I. (Compiler), Geothermal Steam for Power i n N eGeology of the Tauhara Geothermal Field, Lake Taupo,"DSIR Geological Survey Geothermal Report No. 4, 1966.

Pritchett, J.W.

2012-01-01T23:59:59.000Z

183

SUMMARY OF RESERVOIR ENGINEERING DATA: WAIRAKEI GEOTHERMAL FIELD, NEW ZEALAND  

E-Print Network (OSTI)

Grange, L. I. (Compiler), Geothermal Steam for Power i n N eGeology of the Tauhara Geothermal Field, Lake Taupo,"DSIR Geological Survey Geothermal Report No. 4, 1966.

Pritchett, J.W.

2010-01-01T23:59:59.000Z

184

FINAL REPORT ENHANCED GEOTHERMAL SYSTEMS TECHNOLOGY PHASE II ANIMAS VALLEY, NEW MEXICO  

Science Conference Proceedings (OSTI)

Final Technical Report covering siting, permitting, and drilling two geothermal temperature gradient holes. This report provides a summary of geotechnical and geophysical data that led to the siting, drilling, and completion of 2 temperature gradient holes in the geothermal anomaly at Lightning Dock Known Geothermal Resource Area in the Animas Valley of New Mexico. Included in this report is a summary of institutional factors and data defining the well drilling process and acquiring drilling permits. Data covering the results of the drilling and temperature logging of these two holes are provided. The two gradient holes were sited on federal geothermal leases owned by Lightning Dock Geothermal, Inc. and both holes were drilled into lakebed sediments some distance from the intense shallow geothermal anomaly located in the eastern half of Section 7, Township 25 South, Range 19 West.

Roy A.Cunniff; Roger L. Bowers

2003-12-29T23:59:59.000Z

185

Indian Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Indian Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility Indian Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility Facility Indian Valley Hot Springs Sector Geothermal energy Type Pool and Spa Location Greenville, California Coordinates 40.1396126┬░, -120.9510675┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

186

Saline Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Saline Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility Saline Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility Facility Saline Valley Hot Springs Sector Geothermal energy Type Pool and Spa Location Inyo County, California Coordinates 36.3091865┬░, -117.5495846┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

187

Valley View Hot Springs Pool & Spa Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Valley View Hot Springs Pool & Spa Low Temperature Geothermal Facility Valley View Hot Springs Pool & Spa Low Temperature Geothermal Facility Facility Valley View Hot Springs Sector Geothermal energy Type Pool and Spa Location Villa Grove, Colorado Coordinates 38.248999┬░, -105.948608┬░ Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

188

Non-electric utilization of geothermal energy in the San Luis Valley, Colorado. Final report  

DOE Green Energy (OSTI)

Information on the geothermal resources of the San Luis Valley, Colorado, has been gathered and reviewed and a preliminary, quantitative assessment of the magnitude and quality of resources present was carried out. Complete process designs were developed for the processes of producing crystal sugar from beets and for malting barley for use in the brewing industry, in each case adapting the processes to use a 302/sup 0/F geothermal water supply as the main process energy source. A parametric design analysis was performed for a major pipeline to be used to ship geothermal water, and thus deliver its heat, out of the San Luis Valley to three major Colorado cities along the eastern threshold of the Rocky Mountains. Cost estimates for capital equipment and energy utilization are presented. The analyses of the two process applications indicate favorable economics for conversion and operation as geothermally-heated plants. A major geothermal water pipeline for this region is seriously limited on achievement of the economy of scale by the physical absence of significant demand for heat energy. Finally, the development and utilization of Colorado's San Luis Valley geothermal groundwaters hold the potential to contribute to the prudent and beneficial management of that area's natural water resources systems.

Vorum, M.; Coury, G.E.; Goering, S.W.; Fritzler, E.A.

1978-02-01T23:59:59.000Z

189

Geothermal systems of the Mono Basin-Long Valley region, eastern California and western Nevada  

DOE Green Energy (OSTI)

The region that includes Mono Basin, Long Valley, the Bridgeport-Bodie Hills area, and Aurora, in eastern California and western Nevada was studied to determine the possible causes and interactions of the geothermal anomalies in the Mono Basin-Long Valley region as a whole. A special goal of the study was to locate possible shallow bodies of magma and to determine their influence on the hydrothermal systems in the region. (ACR)

Higgins, C.T.; Flynn, T.; Chapman, R.H.; Trexler, D.T.; Chase, G.R.; Bacon, C.F.; Ghusn, G. Jr.

1985-01-01T23:59:59.000Z

190

Structural interpretation of the Coso geothermal field. Summary report,  

Open Energy Info (EERE)

the Coso geothermal field. Summary report, the Coso geothermal field. Summary report, October 1986-August 1987 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Structural interpretation of the Coso geothermal field. Summary report, October 1986-August 1987 Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Geothermal Field, located east of the Sierra Nevada at the northern edge of the high Mojave Desert in Southern California, is an excellent example of a structurally controlled geothermal resource. Author(s): Austin, C.F.; Moore, J.L. Published: Publisher Unknown, 9/1/1987 Document Number: Unavailable DOI: Unavailable Source: View Original Report Geothermal Literature Review At Coso Geothermal Area (1987) Coso Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Structural_interpretation_of_the_Coso_geothermal_field._Summary_report,_October_1986-August_1987&oldid=473519"

191

Patterns of geothermal lease acquisition in the Imperial Valley: 1958--1974  

DOE Green Energy (OSTI)

Patterns for the development of geothermal resources in the Imperial Valley are analyzed, with particular consideration of corporate behavior in geothermal development. Actions of the companies were examined over a period of time to discover patterns of involvement, investment, and likelihood of further development. Discussion is presented under the following section headings: research organization; legal aspects; characteristics of development; location of geothermal leases; analysis of major leaseholders; and findings and conclusions. The addendum is entitled Federal Land Lease Sales: An analysis in terms of Lease Acquisition Patterns. The three appendices are: research methodology; a methodological note on the maps; and exploratory drilling sites. (JGB)

Sullivan, M.; McDougal, S.; Van Huntley, F.

1974-08-01T23:59:59.000Z

192

Geothermal resource assessment of the Animas Valley, Colorado. Resource Series 17  

DOE Green Energy (OSTI)

The Colorado Geological Survey, has been engaged in assessing the nature and extent of Colorado's geothermal resources. The program has included geologic and hydrogeologic reconnaissance, and geophysical and geochemical surveys. In the Animas Valley, in southwestern Colorado, two groups of thermal springs exist: Pinkerton Springs to the north, and Tripp-Trimble-Stratten Springs about 5 miles (8.1 Km) south of Pinkerton. The geothermal resources of the Animas Valley were studied. Due to terrain problems in the narrow valley, a soil mercury survey was conducted only at Tripp-Trimble Stratten, while an electrical D.C. resistivity survey was limited to the vicinity of Pinkerton. Although higher mercury values tended to be near a previously mapped fault, the small extent of the survey ruled out conclusive results. Consistent low resistivity zones interpreted from the geophysical data were mapped as faults near Pinkerton, and compared well with aerial photo work and spring locations. This new information was added to reconnaissance geology and hydrogeology to provide several clues regarding the geothermal potential of the valley. Hydrothermal minerals found in faults in the study area are very similar to ore mined in a very young mountain range, nearby. Groundwater would not need to circulate very deeply along faults to attain the estimated subsurface temperatures present in the valley. The water chemistry of each area is unique. Although previously incompletely manned, faulting in the area is extensive. The geothermal resources in the Animas Valley are fault controlled. Pinkerton and Tripp-Trimble-Stratten are probably not directly connected systems, but may have the same source at distance. Recharge to the geothermal system comes from the needle and La Plata Mountains, and the latter may also be a heat source. Movement of the thermal water is probably primarily horizontal, via the Leadville Limestone aquifer.

McCarthy, K.P.; Zacharakis, T.G.; Ringrose, C.D.

1982-01-01T23:59:59.000Z

193

CO{sub 2} flux measurements across portions of the Dixie Valley geothermal system, Nevada  

DOE Green Energy (OSTI)

A map of the CO{sub 2} flux across a newly formed area of plant kill in the NW part of the Dixie Valley geothermal system was constructed to monitor potential growth of a fumarole field. Flux measurements were recorded using a LI-COR infrared analyzer. Sample locations were restricted to areas within and near the dead zone. The data delineate two areas of high CO{sub 2} flux in different topographic settings. Older fumaroles along the Stillwater range front produce large volumes of CO{sub 2} at high temperatures. High CO{sub 2} flux values were also recorded at sites along a series of recently formed ground fractures at the base of the dead zone. The two areas are connected by a zone of partial plant kill and moderate flux on an alluvial fan. Results from this study indicate a close association between the range front fumaroles and the dead zone fractures. The goals of this study are to characterize recharge to the geothermal system, provide geochemical monitoring of reservoir fluids and to examine the temporal and spatial distribution of the CO{sub 2} flux in the dead zone. This paper reports the results of the initial CO{sub 2} flux measurements taken in October, 1997.

Bergfeld, D.; Goff, F. [Los Alamos National Lab., NM (United States). Earth and Environmental Sciences Div.; Janik, C.J. [Geological Survey, Menlo Park, CA (United States); Johnson, S.D. [Oxbow Power Services, Reno, NV (United States)

1998-12-31T23:59:59.000Z

194

Geothermal energy potential in the San Luis Valley, Colorado  

DOE Green Energy (OSTI)

The background of the area itself is investigated considering the geography, population, economy, attitudes of residents, and energy demands of the area. The requirements for geothermal energy development are considered, including socio-economic, institutional, and environmental conditions as well as some technical aspects. The current, proposed, and potential geothermal energy developments are described. The summary, conclusions, and methodology are included. (MHR)

Coe, B.A.

1980-01-01T23:59:59.000Z

195

Microseismicity, stress, and fracture in the Coso geothermal field,  

Open Energy Info (EERE)

Microseismicity, stress, and fracture in the Coso geothermal field, Microseismicity, stress, and fracture in the Coso geothermal field, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Microseismicity, stress, and fracture in the Coso geothermal field, California Details Activities (1) Areas (1) Regions (0) Abstract: Microseismicity, stress, and fracture in the Coso geothermal field are investigated using seismicity, focal mechanisms and stress analysis. Comparison of hypocenters of microearthquakes with locations of development wells indicates that microseismic activity has increased since the commencement of fluid injection and circulation. Microearthquakes in the geothermal field are proposed as indicators of shear fracturing associated with fluid injection and circulation along major pre-existing

196

Low-temperature geothermal assessment of the Jordan Valley Salt Lake County, Utah  

DOE Green Energy (OSTI)

Two known low-temperature areas (Warm Springs fault and Crystal Hot Springs) are located in the Jordan Valley, but the primary purpose of this report is to locate other low-temperature resources not previously identified. Geothermal reconnaissance techniques utilized in this study include a temperature survey and chemical analysis of wells and springs, and temperature-depth measurements in holes of opportunity. Also, further site specific gravity modelling for the Warm Springs fault geothermal area and initial modelling for the entire valley were also conducted. Areas identified as having potential low-temperature geothermal resources at depth are: (1) the north-central valley area; (2) an east-west portion of the central valley; and (3) a north-south oriented area extending from Draper to Midvale. Each of these areas exhibits ground-water temperatures 20/sup 0/C or greater. Each area has thermal wells with common ion characteristics similar to both Crystal Hot Springs and the Warm Springs fault geothermal systems. Significant concentrations of Sr, Li, B, and F are present in many of these wells.

Klauk, R.H.

1984-07-01T23:59:59.000Z

197

ERDA test facilities, East Mesa Test Site. Geothermal resource investigations, Imperial Valley, California  

DOE Green Energy (OSTI)

Detailed specifications which must be complied with in the construction of the ERDA Test Facilities at the East Mesa Site for geothermal resource investigations in Imperial Valley, California are presented for use by prospective bidders for the construction contract. The principle construction work includes a 700 gpm cooling tower with its associated supports and equipment, pipelines from wells, electrical equipment, and all earthwork. (LCL)

Not Available

1976-01-01T23:59:59.000Z

198

Klamath Falls geothermal field, Oregon  

DOE Green Energy (OSTI)

Klamath Falls, Oregon, is located in a Known Geothermal Resource Area which has been used by residents, principally to obtain geothermal fluids for space heating, at least since the turn of the century. Over 500 shallow-depth wells ranging from 90 to 2,000 ft (27 to 610 m) in depth are used to heat (35 MWt) over 600 structures. This utilization includes the heating of homes, apartments, schools, commercial buildings, hospital, county jail, YMCA, and swimming pools by individual wells and three district heating systems. Geothermal well temperatures range from 100 to 230{degree}F (38 to 110{degree}C) and the most common practice is to use downhole heat exchangers with city water as the circulating fluid. Larger facilities and district heating systems use lineshaft vertical turbine pumps and plate heat exchangers. Well water chemistry indicates approximately 800 ppM dissolved solids, with sodium sulfate having the highest concentration. Some scaling and corrosion does occur on the downhole heat exchangers (black iron pipe) and on heating systems where the geo-fluid is used directly. 73 refs., 49 figs., 6 tabs.

Lienau, P.J.; Culver, G.; Lund, J.W.

1989-09-01T23:59:59.000Z

199

Geological and Geothermal Investigation of the Lower Wind River Valley, Southwestern Washington Cascade Range  

DOE Green Energy (OSTI)

The Wind River Valley, on the west slope of the Cascade Range, is a northwest-trending drainage that joins the Columbia River near Carson, Washington. The region has been heavily dissected by fluvial and glacial erosion. Ridges have sharp crests and deep subsidiary valleys typical of a mature topography, with a total relief of as much as 900 m. The region is vegetated by fir and hemlock, as well as dense, brushy ground-cover and undergrowth. The lower 8 km of the valley is privately owned and moderately populated. The upper reaches lies within the Gifford Pinchot National Forest, and include several campgrounds and day parks, the Carson National Fish Hatchery, and the Wind River Ranger Station and Wind River Nursery of the US Forest Service. Logging activity is light due to the rugged terrain, and consequently, most valley slopes are not accessible by vehicle. The realization that a potential for significant geothermal resources exists in the Wind River area was brought about by earlier exploration activities. Geologic mapping and interpretation was needed to facilitate further exploration of the resource by providing a knowledge of possible geologic controls on the geothermal system. This report presents the detailed geology of the lower Wind River valley with emphasis on those factors that bear significantly on development of a geothermal resource.

Berri, Dulcy A.; Korosec, Michael A.

1983-01-01T23:59:59.000Z

200

Inverse modeling and forecasting for the exploitation of the Pauzhetsky geothermal field, Kamchatka, Russia  

E-Print Network (OSTI)

Heat and mass transfer in geothermal systems of Kamchatka.study of the Pauzhetsky geothermal field, Kamchatka, Russia.Modeling the Pauzhetsky geothermal field, Kamchatka, Russia.

Kiryukhin, A.V.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Geothermal field case studies that document the usefulness of models in predicting reservoir and well behavior  

SciTech Connect

The geothermal industry has shown significant interest in case histories that document field production histories and demonstrate the techniques which work best in the characterization and evaluation of geothermal systems. In response to this interest, LBL has devoted a significant art of its geothermal program to the compilation and analysis of data from US and foreign fields (e.g., East Mesa, The Geysers, Susanville, and Long Valley in California; Klamath Falls in Oregon; Valles Caldera, New Mexico; Cerro Prieto and Los Azufres in Mexico; Krafla and Nesjavellir in Iceland; Larderello in Italy; Olkaria in Kenya). In each of these case studies we have been able to test and validate in the field, or against field data, the methodology and instrumentation developed under the Reservoir Technology Task of the DOE Geothermal Program, and to add to the understanding of the characteristics and processes occurring in geothermal reservoirs. Case study results of the producing Cerro Prieto and Olkaria geothermal fields are discussed in this paper. These examples were chosen because they illustrate the value of conceptual and numerical models to predict changes in reservoir conditions, reservoir processes, and well performance that accompany field exploitation, as well as to reduce the costs associated with the development and exploitation of geothermal resources. 14 refs., 6 figs.

Lippmann, M.J.

1989-03-01T23:59:59.000Z

202

Geothermal Field Case Studies that Document the Usefulness of Models in Predicting Reservoir and Well Behavior  

SciTech Connect

The geothermal industry has shown significant interest in case histories that document field production histories and demonstrate the techniques which work best in the characterization and evaluation of geothermal systems. In response to this interest, LBL has devoted a significant part of its geothermal program to the compilation and analysis of data from US and foreign fields (e.g., East Mesa, The Geysers, Susanville, and Long Valley in California; Klamath Fall in Oregon; Valles Caldera, New Mexico; Cerro Prieto and Los Azufres in Mexico; Krafla and Nesjavellir in Iceland; Larderello in Italy; Olkaria in Kenya). In each of these case studies we have been able to test and validate in the field, or against field data, the methodology and instrumentation developed under the Reservoir Technology Task of the DOE Geothermal Program, and to add to the understanding of the characteristics and processes occurring in geothermal reservoirs. Case study results of the producing Cerro Prieto and Olkaria geothermal fields are discussed in this paper. These examples were chosen because they illustrate the value of conceptual and numerical models to predict changes in reservoir conditions, reservoir processes, and well performance that accompany field exploitation, as well as to reduce the costs associated with the development and exploitation of geothermal resources.

Lippmann, Marcelo J.

1989-03-21T23:59:59.000Z

203

Automatic History Matching of Geothermal Field Performance  

DOE Green Energy (OSTI)

We have developed inverse modeling capabilities for the multiphase multicomponent numerical simulator TOUGH2 to facilitate automatic history matching and parameter estimation based on data obtained during exploitation of geothermal fields. The ITOUGH2 code allows one to estimate TOUGH2 input parameters based on any type of observation for which a corresponding TOUGH2 output can be calculated. Furthermore, a detailed residual and error analysis is performed, and the uncertainty of model predictions can be evaluated. This paper focuses on the solution of the inverse problem, i.e. the determination of model-related parameters by automatically calibrating a conceptual model of the geothermal system against data obtained during field operation. We first describe the modeling approach used to simulate fluid and heat flow in fractured-porous media. The inverse problem is then formulated, followed by a brief discussion of the optimization algorithm. A sample problem is given to demonstrate the application of the method to geothermal reservoir data.

Finsterle, S.; Pruess, K.

1995-01-01T23:59:59.000Z

204

Automatic history matching of geothermal field performance  

DOE Green Energy (OSTI)

We have developed inverse modeling capabilities for the multiphase multicomponent numerical simulator TOUGH2 to facilitate automatic history matching, and parameter estimation based on data obtained during exploitation of Geothermal fields. The ITOUGH2 code allows one to estimate TOUGH2 input parameters based on any type of observation for which a corresponding TOUGH2 output can be calculated. Furthermore, a detailed residual and error analysis is performed, and the uncertainty of model predictions can be evaluated. This paper focuses on the solution of the inverse; problem, i.e. the determination of model-related parameters by automatically calibrating a conceptual model of the Geothermal system against data obtained during field operation. We first describe the modeling, approach used to simulate fluid and heat flow in fractured-porous media. The inverse problem is then formulated, followed by a brief discussion of the optimization algorithm. A sample problem is given to demonstrate the application of the method to Geothermal reservoir data.

Finsterle, S.; Pruess, K>

1995-08-01T23:59:59.000Z

205

Seismicity related to geothermal development in Dixie Valley, Nevada  

DOE Green Energy (OSTI)

A ten-station seismic network was operated in and around the Dixie Valley area from January 1980 to November 1981; three of these stations are still in operation. Data from the Dixie Valley network were analyzed through 30 Jun 1981, and results of analysis were compared with analysis of somewhat larger events for the period 1970-1979. The seismic cycle in the Western Great Basic, the geologic structural setting, and the instrumentation are also described.

Ryall, A.S.; Vetter, U.R.

1982-07-08T23:59:59.000Z

206

Tongonan geothermal field Leyte, Philippines. Report on exploration and development  

DOE Green Energy (OSTI)

Geothermal exploration and development in the Philippines are reviewed. The geology, geophysics, and geochemistry of the Tongonan geothermal field are described. The well drilling, power development, and plans for a 112 MW power plant are included. (MHR)

Not Available

1979-09-01T23:59:59.000Z

207

Geological and geothermal investigation of the lower Wind River valley, southwestern Washington Cascade Range  

DOE Green Energy (OSTI)

The detailed geology of the lower Wind River valley is presented with emphasis on those factors that bear significantly on development of a geothermal resource. The lower Wind River drainage consists primarily of the Ohanapecosh Formation, an Oligocene unit that is recognized across the entire southern Washington Cascade Range. The formation is at least 300 m thick in the Wind River valley area. It consists largely of volcaniclastic sediments, with minor massive pyroclastic flows, volcanic breccias and lava flows. Low grade zeolite facies metamorphism during the Miocene led to formation of hydrothermal minerals in Ohanapecosh strata. Metamorphism probably occurred at less than 180{sup 0}C.

Berri, D.A.; Korosec, M.A.

1983-01-01T23:59:59.000Z

208

Seismic response to fluid injection and production in two Salton Trough geothermal fields, southern California  

E-Print Network (OSTI)

of the Salton Sea Geothermal Field, California.Journal of Volcanology and Geothermal Research, 12: 221-258patterns in hydrocarbon and geothermal reservoirs: Six case

Lajoie, Lia Joyce

2012-01-01T23:59:59.000Z

209

Geological Interpretation of Self-Potential Data from the Cerro Prieto Geothermal Field  

E-Print Network (OSTI)

study of samples from geothermal reservoirs: Riverside,study of samples from geothermal reservoirs: petrology andat the Cerro Prieto geothermal field, in Proceedings, First

Corwin, R.F.

2009-01-01T23:59:59.000Z

210

Field Mapping At Walker Lake Valley Area (Shoffner, Et Al., 2010...  

Open Energy Info (EERE)

Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Retrieved from "http:en.openei.orgw...

211

Detection of Surface Temperature Anomalies in the Coso Geothermal Field  

Open Energy Info (EERE)

Detection of Surface Temperature Anomalies in the Coso Geothermal Field Detection of Surface Temperature Anomalies in the Coso Geothermal Field Using Thermal Infrared Remote Sensing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Detection of Surface Temperature Anomalies in the Coso Geothermal Field Using Thermal Infrared Remote Sensing Details Activities (1) Areas (1) Regions (0) Abstract: We use thermal infrared (TIR) data from the spaceborne ASTER instrument to detect surface temperature anomalies in the Coso geothermal field in eastern California. The identification of such anomalies in a known geothermal area serves as an incentive to apply similar markers and techniques to areas of unknown geothermal potential. We carried out field measurements concurrently with the collection of ASTER images. The field

212

Reservoir assessment of The Geysers Geothermal field  

DOE Green Energy (OSTI)

Big Sulphur Creek fault zone, in The Geysers Geothermal field, may be part of a deep-seated, wrench-style fault system. Hydrothermal fluid in the field reservoir may rise through conduits beneath the five main anomalies associated with the Big Sulphur Creek wrench trend. Some geophysical anomalies (electrical resistivity and audio-magnetotelluric) evidently are caused by the hot water geothermal field or zones of altered rocks; others (gravity, P-wave delays, and possibly electrical resistivity) probably respresent the underlying heat source, a possible magma chamber; and others (microearthquake activity) may be related to the steam reservoir. A large negative gravity anomaly and a few low-resistivity anomalies suggest areas generally favorable for the presence of steam zones, but these anomalies apparently do not directly indicate the known steam reservoir. At the current generating capacity of 930 MWe, the estimated life of The Geysers Geothermal field reservoir is 129 years. The estimated reservoir life is 60 years for the anticipated maximum generating capacity of 2000 MWe as of 1990. Wells at The Geysers are drilled with conventional drilling fluid (mud) until the top of the steam reservoir is reached; then, they are drilled with air. Usually, mud, temperature, caliper, dual induction, and cement bond logs are run on the wells.

Thomas, R.P.; Chapman, R.H.; Dykstra, H.

1981-01-01T23:59:59.000Z

213

Geothermal reservoir assessment case study: Northern Dixie Valley, Nevada  

DOE Green Energy (OSTI)

Two 1500 foot temperature gradient holes and two deep exploratory wells were drilled and tested. Hydrologic-hydrochemical, shallow temperature survey, structural-tectonic, petrologic alteration, and solid-sample geochemistry studies were completed. Eighteen miles of high resolution reflection seismic data were gathered over the area. The study indicates that a geothermal regime with temperatures greater than 400/sup 0/F may exist at a depth of approximately 7500' to 10,000' over an area more than ten miles in length.

Denton, J.M.; Bell, E.J.; Jodry, R.L.

1980-11-01T23:59:59.000Z

214

Geothermal emissions data base: Cerro Prieto geothermal field  

DOE Green Energy (OSTI)

A new database subset on the gaseous emissions from the Cerro Prieto geothermal field is presented. Properties and states of the reservoir fluid such as flow rates, wellhead pressure, and enthalpy are included in the file along with the well name and constituent measurement. This subset is the result of an initial screening of the data covering 1967 to 1969, and new additions will be appended periodically to the file. The data are accessed by a database management system as are all other subsets in the file. Thereby, one may search the database for specific data requirements and print selective output. For example, one may wish to locate reservoir conditions for cases only when the level of the constituent exceeded a designated value. Data output is available in the form of numerical compilations such as the attached, or graphical displays disposed to paper, film, or magnetic tape.

Schwartz, S.R. (comp.)

1978-04-01T23:59:59.000Z

215

Field Mapping At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Coso Geothermal Area (2006) Field Mapping At Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 2006 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine impact of brittle faulting and seismogenic deformation on permeability in geothermal reservoir Notes New mapping documents a series of late Quaternary NNE-striking normal faults in the central Coso Range that dip northwest, toward and into the main production area of the Coso geothermal field. The faults exhibit geomorphic features characteristic of Holocene activity, and locally are associated with fumaroles and hydothermal alteration. The active faults

216

Structural interpretation of Coso Geothermal field, Inyo County, California  

Open Energy Info (EERE)

Coso Geothermal field, Inyo County, California Coso Geothermal field, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Structural interpretation of Coso Geothermal field, Inyo County, California Details Activities (2) Areas (1) Regions (0) Abstract: The Coso Geothermal field, located east of the Sierra Nevada at the northern edge of the high Mojave Desert in southern California, is an excellent example of a structurally controlled geothermal resource. The geothermal system appears to be associated with at least one dominant north-south-trending feature which extends several miles through the east-central portion of the Coso volcanic field. Wells drilled along this feature have encountered production from distinct fractures in crystalline basement rocks. The identified producing fractures occur in zones which

217

Geothermal Literature Review At San Francisco Volcanic Field Area (Morgan,  

Open Energy Info (EERE)

Morgan, Morgan, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At San Francisco Volcanic Field Area (Morgan, Et Al., 2003) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Geothermal Literature Review Activity Date Usefulness not indicated DOE-funding Unknown References Paul Morgan, Wendell Duffield, John Sass, Tracey Felger (2003) Searching For An Electrical-Grade Geothermal Resource In Northern Arizona To Help Geopower The West Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Literature_Review_At_San_Francisco_Volcanic_Field_Area_(Morgan,_Et_Al.,_2003)&oldid=510822" Category: Exploration Activities What links here

218

Preliminary direct heat geothermal resource assessment of the Tennessee Valley region  

DOE Green Energy (OSTI)

A preliminary appraisal of the direct heat geothermal energy resources of the Tennessee Valley region has been completed. This region includes Kentucky, Tennessee and parts of adjacent states. Intermediate and deep aquifers were selected for study. Basement and Top-of-Knox structure and temperature maps were compiled from oil and gas well data on file at various state geological survey offices. Results of this study indicate that the New Madrid seismic zone is the only area within the region that possesses potential for direct heat utilization. In other areas geothermal energy is either too deep for economical extraction or it will not be able to compete with other local energy resources. The only anomalously high temperature well outside the New Madrid seismic zone was located in the Rome Trough and near the central part of the eastern Kentucky coal basin. Geothermal energy in that region would face strong competition from coal, oil and natural gas.

Staub, W.P.

1980-01-01T23:59:59.000Z

219

Hydrologic properties of the Dixie Valley, Nevada, geothermal reservoir from well-test analyses  

DOE Green Energy (OSTI)

Temperature, pressure, and spinner (TPS) logs have been recorded in several wells from the Dixie Valley Geothermal Reservoir in west central Nevada. A variety of well-test analyses has been performed with these data to quantify the hydrologic properties of this fault-dominated geothermal resource. Four complementary analytical techniques were employed, their individual application depending upon availability and quality of data and validity of scientific assumptions. In some instances, redundancy in methodologies was used to decouple interrelated terms. The methods were (1) step-drawdown, variable-discharge test; (2) recovery analysis; (3) damped-oscillation response; and (4) injection test. To date, TPS logs from five wells have been examined and results fall into two distinct categories. Productive, economically viable wells have permeability-thickness values on the order of 10{sup 5} millidarcy-meter (mD-m) and storativities of about 10{sup {minus}3}. Low-productivity wells, sometimes located only a few kilometers from their permeable counterparts, are artesian and display a sharp reduction in permeability-thickness to about 10 mD-m with storativities on the order of 10{sup {minus}4}. These results demonstrate that the hydrologic characteristics of this liquid-dominated geothermal system exhibit a significant spatial variability along the range-bounding normal fault that forms the predominant aquifer. A large-scale, coherent model of the Dixie Valley Geothermal Reservoir will require an understanding of the nature of this heterogeneity and the parameters that control it.

Morin, R.H. [Geological Survey, Denver, CO (United States); Hickman, S.H. [Geological Survey, Menlo Park, CA (United States); Barton, C.A. [Stanford Univ., CA (United States). Dept. of Geophysics; Shapiro, A.M. [Geological Survey, Reston, VA (United States); Benoit, W.R. [Oxbow Geothermal Corp., Reno, NV (United States); Sass, J.H. [Geological Survey, Flagstaff, AZ (United States)

1998-08-01T23:59:59.000Z

220

Geotechnical Environmental Aspects of Geothermal Power Generation at Heber, Imperial Valley, California. Topical report 1  

DOE Green Energy (OSTI)

This report presents a portion of the results from a one-year feasibility study sponsored by the Electric Power Research Institute (EPRI) to assess the feasibility of constructing a 25-50 MWe geothermal power plant using low salinity hydrothermal fluid as the energy source. The impact of power generation from hydrothermal resources on subsurface water flow, seismicity and subsidence are of acute interest in the determination of the environmental acceptance of geothermal energy. At the same time, the experience and data bases in these areas are very limited. The objective of the project was to assess the technical, geotechnical, environmental and economic feasibility of producing electricity from hydrothermal resources like those known to exist in the US. The objective of this part of the study was to investigate the geotechnical aspects of geothermal power generation and their relationship to environmental impacts in the Imperial Valley of California. This report discusses geology, geophysics, hydrogeology, seismicity and subsidence in terms of the availability of data, state-of-the-art analytical techniques, historical and technical background and interpretation of current data. it also discusses estimates of the impact of these geotechnical factors on the environment in the Imperial Valley, if geothermal development proceeds.

None

1976-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Public opinion in Cobb Valley concerning geothermal development in Lake County, California  

DOE Green Energy (OSTI)

In the Spring of 1975 the Friends of Cobb, a local environmental group, polled the registered voters of the Cobb Valley precinct, Lake County, California, about their opinions regarding the development of geothermal energy in Lake County. Sixty-five percent of those polled responded, and an analysis of their responses indicates the following: (1) The people of the Cobb Valley (which lies directly in the path of geothermal development) are rather less pleased with the prospect than a previous poll has shown the people of Lake County as a whole to be. As measured by an index of general support for development, one-third of the Cobb people are for development, one-third are against, and the remaining third are undecided or have mixed feelings. (Countywide, nearly two-thirds support development.) (2) Support for and opposition to geothermal development correlate most highly with the perception of environmental impacts, the expectation of economic benefits in the form of increased job opportunities and tax revenues, and size of land holdings. (3) Among those who own more than ten acres of land, the willingness to lease land for geothermal development correlates most highly with the perception of environmental impacts.

Vollintine, L.; Weres, O.

1976-06-01T23:59:59.000Z

222

SEISMOLOGICAL INVESTIGATIONS AT THE GEYSERS GEOTHERMAL FIELD  

E-Print Network (OSTI)

P. Muffler, 1972. The Geysers Geothermal Area, California.B. C. Hearn, 1977. ~n Geothermal Prospecting Geology, TheC. , 1968. of the Salton Sea Geothermal System. pp. 129-166.

Majer, E. L.

2011-01-01T23:59:59.000Z

223

San Juan Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

San Juan Volcanic Field Geothermal Area San Juan Volcanic Field Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: San Juan Volcanic Field Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

224

Pre-Investigation Geological Appraisal Of Geothermal Fields | Open Energy  

Open Energy Info (EERE)

Pre-Investigation Geological Appraisal Of Geothermal Fields Pre-Investigation Geological Appraisal Of Geothermal Fields Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Pre-Investigation Geological Appraisal Of Geothermal Fields Details Activities (2) Areas (1) Regions (0) Abstract: In recent years there has been interest in the possibility of generating electricity from geothermal steam in many countries. The initial stage is the preliminary evaluation of geothermal resources and, apart from economic considerations, the problem is essentially geological. This paper deals with the factors involved in the selection of areas that warrant expenditure on investigation and development. Preferred requirements in geothermal fields for power generation are temperatures above 200┬░C and permeable aquifers or zones within 2000 m from the surface. The existence

225

San Francisco Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

San Francisco Volcanic Field Geothermal Area San Francisco Volcanic Field Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: San Francisco Volcanic Field Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Arizona Exploration Region: Other GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

226

3D Magnetotelluic characterization of the Coso Geothermal Field | Open  

Open Energy Info (EERE)

Magnetotelluic characterization of the Coso Geothermal Field Magnetotelluic characterization of the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3D Magnetotelluic characterization of the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: Electrical resistivity may contribute to progress in understanding geothermal systems by imaging the geometry, bounds and controlling structures in existing production, and thereby perhaps suggesting new areas for field expansion. To these ends, a dense grid of magnetotelluric (MT) stations plus a single line of contiguous bipole array profiling has been acquired over the east flank of the Coso geothermal system. Acquiring good quality MT data in producing geothermal systems is a challenge due to production related electromagnetic (EM) noise and, in the

227

Geothermal Development and Resource Management in the Yakima Valley : A Guidebook for Local Governments.  

DOE Green Energy (OSTI)

The guidebook defines the barriers to geothermal energy development at all levels of government and proposes ways to overcome these various barriers. In recognition that wholesale development of the region's geothermal resources could create a series of environmental problems and possible conflicts between groundwater users, resource management options are identified as possible ways to ensure the quality and quantity of the resource for future generations. It is important for local governments to get beyond the discussion of the merits of geothermal energy and take positive actions to develop or to encourage the development of the resource. To this end, several sources of technical and financial assistance are described. These sources of assistance can enable local governments and others to take action should they choose to do so. Even though the Yakima Valley is the setting for the analysis of local issues that could hamper geothermal development, this guidebook could be used by any locale with geothermal energy resources. The guidebook is not a scientific manual, but rather a policy document written especially for local government staff and officials who do not have technical backgrounds in geology or hydrology.

Creager, Kurt

1984-03-01T23:59:59.000Z

228

Recency Of Faulting And Neotechtonic Framework In The Dixie Valley  

Open Energy Info (EERE)

Of Faulting And Neotechtonic Framework In The Dixie Valley Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Details Activities (6) Areas (3) Regions (0) Abstract: We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal

229

Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada...  

Open Energy Info (EERE)

Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada, Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper:...

230

SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS | Open Energy Information  

Open Energy Info (EERE)

SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: SEISMIC ATTRIBUTES IN GEOTHERMAL FIELDS Details Activities (1) Areas (1) Regions (0) Abstract: Large velocity contrasts are regularly encountered in geothermal fields due to poorly consolidated and hydro-thermally altered rocks. The appropriate processing of seismic data is therefore crucial to delineate the geological structure. To assess the benefits of surface seismic surveys in such settings, we applied different migration procedures to image a synthetic reservoir model and seismic data from the Coso Geothermal Field. We have shown that the two-dimensional migration of synthetic seismic data from a typical reservoir model resolves the geological structure very well

231

Seismic Velocity And Attenuation Structure Of The Geysers Geothermal Field,  

Open Energy Info (EERE)

Velocity And Attenuation Structure Of The Geysers Geothermal Field, Velocity And Attenuation Structure Of The Geysers Geothermal Field, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismic Velocity And Attenuation Structure Of The Geysers Geothermal Field, California Details Activities (1) Areas (1) Regions (0) Abstract: The Geysers geothermal field is located in northern California and is one of the world's largest producers of electricity from geothermal energy. A key resource management issue at this field is the distribution of fluid in the matrix of the reservoir rock. In this paper, we interpret seismic compressional-wave velocity and quality quotient (Q) data at The Geysers in terms of the geologic structure and fluid saturation in the reservoir. Our data consist of waveforms from approximately 300

232

GEOLOGIC FRAMEWORK OF THE EAST FLANK, COSO GEOTHERMAL FIELD: IMPLICATIONS  

Open Energy Info (EERE)

GEOLOGIC FRAMEWORK OF THE EAST FLANK, COSO GEOTHERMAL FIELD: IMPLICATIONS GEOLOGIC FRAMEWORK OF THE EAST FLANK, COSO GEOTHERMAL FIELD: IMPLICATIONS FOR EGS DEVELOPMENT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: GEOLOGIC FRAMEWORK OF THE EAST FLANK, COSO GEOTHERMAL FIELD: IMPLICATIONS FOR EGS DEVELOPMENT Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Geothermal Field is a large, high temperature system located in eastern California on the western edge of the Basin and Range province. The East Flank of this field is currently under study as a DOE-funded Enhanced Geothermal Systems (EGS) project. This paper summarizes petrologic and geologic investigations on two East Flank wells, 34A-9 and 34-9RD2 conducted as part of a continuing effort to better understand how the rocks will behave during hydraulic and thermal stimulation. Well 34A-9

233

San Juan Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

San Juan Volcanic Field Geothermal Area San Juan Volcanic Field Geothermal Area (Redirected from San Juan Volcanic Field Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: San Juan Volcanic Field Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

234

Structural Analysis of the Desert Peak-Brady Geothermal Fields,  

Open Energy Info (EERE)

Structural Analysis of the Desert Peak-Brady Geothermal Fields, Structural Analysis of the Desert Peak-Brady Geothermal Fields, Northwestern Nevada: Implications for Understanding Linkages Between Northeast-Trending Structures and Geothermal Reservoirs in the Humboldt Structural Zone Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Structural Analysis of the Desert Peak-Brady Geothermal Fields, Northwestern Nevada: Implications for Understanding Linkages Between Northeast-Trending Structures and Geothermal Reservoirs in the Humboldt Structural Zone Abstract Detailed geologic mapping, delineation of Tertiary strata, analysis of faults and folds, and a new gravity survey have elucidated the structural controls on the Desert Peak and Brady geothermal fields in the Hot Springs Mountains of northwestern Nevada. The fields lie within the Humboldt

235

Optimization of injection scheduling in geothermal fields  

DOE Green Energy (OSTI)

This study discusses the application of algorithms developed in Operations Research to the optimization of brine reinjection in geothermal fields. The injection optimization problem is broken into two sub-problems: (1) choosing a configuration of injectors from an existing set of wells, and (2) allocating a total specified injection rate among chosen injectors. The allocation problem is solved first. The reservoir is idealized as a network of channels or arcs directly connecting each pair of wells in the field. Each arc in the network is considered to have some potential for thermal breakthrough. This potential is quantified by an arc-specific break-through index, b/sub ij/, based on user-specified parameters from tracer tests, field geometry, and operating considerations. The sum of b/sub ij/-values for all arcs is defined as the fieldwide breakthrough index, B. Injection is optimized by choosing injection wells and rates so as to minimize B subject to constraints on the number of injectors and the total amount of fluid to be produced and reinjected. The study presents four computer programs which employ linear or quadratic programming to solve the allocation problem. In addition, a program is presented which solves the injector configuration problem by a combination of enumeration and quadratic programming. The use of the various programs is demonstrated with reference both to hypothetical data and an actual data set from the Wairakei Geothermal Field in New Zealand.

Lovekin, J.

1987-05-01T23:59:59.000Z

236

Optimization of Injection Scheduling in Geothermal Fields  

DOE Green Energy (OSTI)

This study discusses the application of algorithms developed in Operations Research to the optimization of brine reinjection in geothermal fields. The injection optimization problem is broken into two sub-problems: (1) choosing a configuration of injectors from an existing set of wells, and (2) allocating a total specified injection rate among chosen injectors. The allocation problem is solved first. The reservoir is idealized as a network of channels or arcs directly connecting each pair of wells in the field. Each arc in the network is considered to have some potential for thermal breakthrough. This potential is quantified by an arc-specific breakthrough index, b{sub ij}, based on user-specified parameters from tracer tests, field geometry, and operating considerations. The sum of b{sub ij}-values for all arcs is defined as the fieldwide breakthrough index, B. Injection is optimized by choosing injection wells and rates so as to minimize B subject to constraints on the number of injectors and the total amount of fluid to be produced and reinjected. The use of the various methods is demonstrated with reference both to hypothetical data and an actual data set from the Wairakei Geothermal Field in New Zealand.

Lovekin, James; Horne, Roland N.

1989-03-21T23:59:59.000Z

237

Tectonic controls on fracture permeability in a geothermal reservoir at Dixie Valley, Nevada  

DOE Green Energy (OSTI)

To help determine the nature and origins of permeability variations within a fault-hosted geothermal reservoir at Dixie Valley, Nevada, the authors conducted borehole televiewer logging and hydraulic fracturing stress measurements in six wells drilled into the Stillwater fault zone at depths of 2--3 km. Televiewer logs from wells penetrating the highly permeable portion of the fault zone revealed extensive drilling-induced tensile fractures. As the Stillwater fault at this location dips S45{degree}E at {approximately} 53{degree} it is nearly at the optimal orientation for normal faulting in the current stress field. Hydraulic fracturing tests from these permeable wells show that the magnitude of S{sub hmin} is very low relative to the vertical stress S{sub v}. Similar measurements conducted in two wells penetrating a relatively impermeable segment of the Stillwater fault zone 8 and 20 km southwest of the producing geothermal reservoir indicate that the orientation of S{sub hmin} is S20{degree}E and S41{degree}E, respectively, with S{sub hmin}/S{sub v} ranging from 0.55--0.64 at depths of 1.9--2.2 km. This stress orientation is near optimal for normal faulting on the Stillwater fault in the northernmost non-producing well, but {approximately} 40{degree} rotated from the optimal orientation for normal faulting in the southernmost well. The observation that borehole breakouts were present in these nonproducing wells, but absent in wells drilled into the permeable main reservoir, indicates a significant increase in the magnitude of maximum horizontal principal stress, S{sub Hmax}, in going from the producing to non-producing segments of the fault. The increase in S{sub Hmaz}, coupled with elevated S{sub hmin}/S{sub v} values and a misorientation of the Stillwater fault zone with respect to the principal stress directions, leads to a decrease in the proximity of the fault zone to Coulomb failure. This suggests that a necessary condition for high reservoir permeability is that the Stillwater fault zone be critically stressed for frictional failure in the current stress field.

Hickman, S. [Geological Survey, Menlo Park, CA (United States); Zoback, M. [Stanford Univ., CA (United States). Dept. of Geophysics

1998-08-01T23:59:59.000Z

238

Potential air quality impact of geothermal power production in the Imperial Valley  

DOE Green Energy (OSTI)

A regional assessment of the potential impact on air quality of developing the Imperial Valley's geothermal resources for power production is presented. A network of six stations was installed to characterize the air quality and atmospheric transport properties of the valley before development. These measured the ambient air concentrations of H/sub 2/S, SO/sub 2/, O/sub 3/, NO, NO/sub x/, CO/sub 2/, Hg, Rn, and particulates. Wind velocity and the directional variability of the winds were also measured to determine atmospheric stability. The geothermal fluids were analyzed chemically to estimate potential emission rates of H/sub 2/S, NH/sub 3/, CO/sub 2/, CH/sub 4/, Hg, and Rn from future power plants. Using these data and advanced air quality modeling led to the prediction of the potential valley-wide impact of a 3000 MW development scenario. The impact analysis reveals that H/sub 2/S is the principal gaseous pollutant of concern due to its noxious odor and the potential release rate. The ambient H/sub 2/S concentrations that would result from generating 3000 MW without emission controls exceed the California air quality standard (30 ppb) at least 1% of the time for an area in the northern part of the valley that is roughly 1500 km/sup 2/ in size. This compares with current ambient air concentrations that exceed the standard much less than 0.1% of the time. The population center most impacted is Calipatria, where the standard could be exceeded almost 10% of the time. In addition, the odor of H/sub 2/S will be noticeable at least 1% of the time for most of the valley if the 3000 MW are placed on-line without abatement systems.

Gudiksen, P.H.; Ermak, D.L.; Lamson, K.C.; Axelrod, M.C.; Nyholm, R.A.

1979-10-01T23:59:59.000Z

239

Geobotanical characterization of a geothermal system using hyperspectral imagery: Long Valley Caldera, CA  

SciTech Connect

We have analyzed hyperspectral Airborne Visible-Infrared Imaging System (AVIRIS) imagery taken in September of 1992 in Long Valley Caldera, CA, a geothermally active region expressed surficially by hot springs and fumaroles. Geological and vegetation mapping are attempted through spectral classification of imagery. Particular hot spring areas in the caldera are targeted for analysis. The data is analyzed for unique geobotanical patterns in the vicinity of hot springs as well as gross identification of dominant plant and mineral species. Spectra used for the classifications come from a vegetation spectral library created for plant species found to be associated with geothermal processes. This library takes into account the seasonality of vegetation by including spectra for species on a monthly basis. Geological spectra are taken from JPL and USGS mineral libraries. Preliminary classifications of hot spring areas indicate some success in mineral identification and less successful vegetation species identification. The small spatial extent of individual plants demands either sub-pixel analysis or increased spatial resolution of imagery. Future work will also include preliminary analysis of a hyperspectral thermal imagery dataset and a multitemporal air photo dataset. The combination of these remotely sensed datasets for Long Valley will yield a valuable product for geothermal exploration efforts in other regions.

Carter, M R; Cochran, S A; Martini, B A; Pickles, W L; Potts, D C; Priest, R E; Silver, E A; Wayne, B A; White, W T

1998-12-01T23:59:59.000Z

240

Potential effects of geothermal energy conversion on Imperial Valley ecosystems. [Seven workshop presentations  

DOE Green Energy (OSTI)

This workshop on potential effcts of geothermal energy conversion on the ecology of Imperial Valley brought together personnel of Lawrence Livermore Laboratory and many collaborators under the sponsorship of the ERDA Imperial Valley Environmental Project (IVEP). The LLL Integrated Assessment Team identified the electric power potential and its associated effluents, discharges, subsidence, water requirements, land use, and noise. The Working Groups addressed the ecological problems. Water resource management problems include forces on water use, irrigation methods and water use for crops, water production, and water allocation. Agricultural problems are the contamination of edible crops and the reclamation of soil. A strategy is discussed for predevelopment baseline data and for identification of source term tracers. Wildlife resources might be threatened by habitat destruction, powerline impacts, noise and disturbance effects, gas emissions, and secondary impacts such as population pressure. Aquatic ecosystems in both the Salton Sea and fresh waters have potential hazards of salinity and trace metal effects, as well as existing stresses; baseline and bioassay studies are discussed. Problems from air pollution resulting from geothermal resource development might occur, particularly to vegetation and pollinator insects. Conversion of injury data to predicted economic damage isneeded. Finally, Imperial Valley desert ecosystems might be threatened by destruction of habitat and the possible effects on community structure such as those resulting from brine spills.

Shinn, J.H. (ed.)

1976-12-17T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

3D MAGNETOTELLURIC CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD | Open  

Open Energy Info (EERE)

CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: 3D Magnetotelluric characterization of the COSO Geothermal Field Details Activities (0) Areas (0) Regions (0) Abstract: Knowledge of the subsurface electrical resistivity/conductivity can contribute to a better understanding of complex hydrothermal systems, typified by Coso geothermal field, through mapping the geometry (bounds and controlling structures) over existing production. Three-dimensional magnetotelluric (MT) inversion is now an emerging technology for characterizing the resistivity structures of complex geothermal systems. The method appears to hold great promise, but histories exploiting truly 3D inversion that demonstrate the advantages that can be gained by acquiring

242

Temporal Velocity Variations beneath the Coso Geothermal Field Observed  

Open Energy Info (EERE)

Velocity Variations beneath the Coso Geothermal Field Observed Velocity Variations beneath the Coso Geothermal Field Observed using Seismic Double Difference Tomography of Compressional and Shear Wave Arrival Times Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Temporal Velocity Variations beneath the Coso Geothermal Field Observed using Seismic Double Difference Tomography of Compressional and Shear Wave Arrival Times Details Activities (1) Areas (1) Regions (0) Abstract: Microseismic imaging can be an important tool for characterizing geothermal reservoirs. Since microseismic sources occur more or less continuously both due to the operations of a geothermal field and the naturally occurring background seismicity, passive seismic monitoring is well suited to quantify the temporal variations in the vicinity of a

243

Brawley- Resurrection Of A Previously Developed Geothermal Field | Open  

Open Energy Info (EERE)

Brawley- Resurrection Of A Previously Developed Geothermal Field Brawley- Resurrection Of A Previously Developed Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Brawley- Resurrection Of A Previously Developed Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: The Brawley Geothermal Field was originally developed by Unocal. In addition to drilling geothermal wells, this development included building and operating a 10 MWe power plant. Corrosion and scaling issues resulted in Unocal abandoning the project in the 1980's. Ormat Nevada investigated the potential of the shallow sands in 2006. It was concluded that these matrixpermeable sands contained moderately saline water, high porosity, and could support a binary-type power plant. In 2007, Ormat Nevada drilled and tested five wells. These test results confirmed the

244

Field Mapping At Coso Geothermal Area (1978) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Coso Geothermal Area (1978) Field Mapping At Coso Geothermal Area (1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 1978 Usefulness not indicated DOE-funding Unknown Notes Geology and alteration mapping analyzed exposed rocks in geothermal region. Neither geologic mapping nor deep drilling have revealed potential deep primary aquifers. Surface alteration at Coso is of three main types: (1) clay-opal-alunite alteration, (2) weak argillic alteration, and (3) stockwork calcite veins and veinlets, which are locally associated with calcareous sinter. References Hulen, J. B. (1 May 1978) Geology and alteration of the Coso

245

Field Mapping At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Coso Geothermal Area (1980) Field Mapping At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the areal extent of the magma reservoir Notes The distribution of quaternary rhyolite dome of the Coso Range was analyzed. Thirty-eight separate domes and flows of phenocryst-poor, high-silica rhyolite of similar major element chemical composition were erupted over the past 1 m.y. from vents arranged in a crudely S-shaped array atop a granitic horst in the Coso Range, California. The immediate source of heat for the surficial geothermal phenomena is probably a silicic

246

Analysis of cause and mechanism for injection-induced seismicity at the Geysers Geothermal Field, California  

E-Print Network (OSTI)

rock from the Geysers Geothermal Field, California. Int. J.strain at The Geysers geothermal field. Ph.D. dissertation,Subsidence at The Geysers geothermal field, N. California

Rutqvist, Jonny; Oldenburg, Curtis

2007-01-01T23:59:59.000Z

247

Assessment of geothermal development in the Imperial Valley of California. Volume 2. Environmental control technology  

DOE Green Energy (OSTI)

Environmental control technologies are essential elements to be included in the overall design of Imperial Valley geothermal power systems. Environmental controls applicable to abatement of hydrogen sulfide emissions, cooling tower drift, noise, liquid and solid wastes, and induced subsidence and seismicity are assessed here. For optimum abatement of H{sub 2}S under a variety of plant operating conditions, removal of H{sub 2}S upstream of the steam turbine is recommended. The environmental impact of cooling tower drift will be closely tied to the quality of cooling water supplies. Conventional noise abatement procedures can be applied and no special research and development are needed. Injection technology constitutes the primary and most essential environmental control and liquid waste disposal technology for Imperial Velley geothermal operations. Subsurface injection of fluids is the primary control for managing induced subsidence. Careful maintenance of injection pressure is expected to control induced seismicity. (MHR)

Morris, W.; Hill, J. (eds.)

1980-07-01T23:59:59.000Z

248

Prelimiary investigation desalting of geothermal brines in the Imperial Valley of California  

SciTech Connect

The Imperial Valley Project is an applied research program to provide geologic, hydrologic, engineering, and economic information necessary for development of the geothermal resources of the delta of the lower Colorado River. It is suggested that a desalting pilot plant be associated with the project to develop an economic desalting process if 2 to 3% geothermal brine is produced. The process will be unconventional in that waste heat must be rejected to atmosphere in wet or dry cooling towers. The presence of large amounts of CO/sub 2/, H/sub 2/S, and silica will require gas removal and silicascale control equipment. The plant would process up to 75,000 gallons of brine per day. (MCW)

Spiewak, I.; Hise, E.C.; Reed, S.A.; Thompson, S.A.

1970-03-01T23:59:59.000Z

249

Field Mapping At Coso Geothermal Area (2010) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Coso Geothermal Area (2010) Field Mapping At Coso Geothermal Area (2010) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 2010 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine if there is geothermal potential in the South Ranges Notes It has been believed that the South Ranges at China Lake may host geothermal resources for several decades. Recent Garlock Fault mapping, associated thermochronology work and a well documented but geologically unresolved steaming well to the west suggests that the South Ranges should be investigated for geothermal potential. In 2009, GPO awarded a contract to the University of Kansas to follow through on detailed mapping, trenching, dating and thermochronoloy in the Lava Mountains and the

250

Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field  

Open Energy Info (EERE)

Audiomagnetotellurics (Aamt) In The Geothermal Field Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany Details Activities (0) Areas (0) Regions (0) Abstract: In October 1981 the AAMT method was tested in the geothermal field of Travale. This method is based on the MT method, but uses artificial EM fields excited by a transmitter some kilometres from the receiving station. The transmitter consists of a switch mode amplifier for the lower frequency band (< 300 Hz) and six stacked linear amplifiers for the high frequency band. Maximum output is about 5 kW. For measurement of the very small EM field at the receiver the correlation technique is used

251

Fracture Permeability and in Situ Stress in the Dixie Valley, Nevada, Geothermal Reservoir  

DOE Green Energy (OSTI)

We have collected and analyzed fracture and fluid flow data from wells both within and outside the producing geothermal reservoir at Dixie Valley. Data from wellbore imaging and flow tests in wells outside the producing field that are not sufficiently hydraulically connected to the reservoir to be of commercial value provide both the necessary control group of fracture populations and an opportunity to test the concepts proposed in this study on a regional, whole-reservoir scale. Results of our analysis indicate that fracture zones with high measured permeabilities within the producing segment of the fault are parallel to the local trend of the Stillwater fault and are optimally oriented and critically stressed for frictional failure in the overall east-southeast extensional stress regime measured at the site. In contrast, in the non-producing (i.e., relatively impermeable:) well 66-21 the higher ratio of S{sub hmin} to S{sub v} acts to decrease the shear stress available to drive fault slip. Thus, although many of the fractures at this site (like the Stillwater fault itself) are optimally oriented for normal faulting they are not critically stressed for frictional failure. Although some of the fractures observed in the non-producing well 45-14 are critically stressed for frictional failure, the Stillwater fault zone itself is frictionally stable. Thus, the high horizontal differential stress (i.e., S{sub Hmax}-S{sub hmin}) together with the severe misorientation of the Stillwater fault zone for normal faulting at this location appear to dominate the overall potential for fluid flow.

M. D. Zoback

1999-03-08T23:59:59.000Z

252

Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA  

DOE Green Energy (OSTI)

Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.

Pickles, W L; Martini, B A; Silver, E A; Cocks, P A

2004-03-03T23:59:59.000Z

253

Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA  

SciTech Connect

Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.

Pickles, W L; Martini, B A; Silver, E A; Cocks, P A

2004-03-03T23:59:59.000Z

254

Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA  

SciTech Connect

Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.

Martini, B; Silver, E; Pickles, W; Cocks, P

2004-03-25T23:59:59.000Z

255

Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA  

DOE Green Energy (OSTI)

Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.

Martini, B; Silver, E; Pickles, W; Cocks, P

2004-03-25T23:59:59.000Z

256

Identification of environmental control technologies for geothermal development in the Imperial Valley of California  

DOE Green Energy (OSTI)

Control technologies to manage environmental impacts from geothermal developments in California's Imperial Valley from development to 1985 are discussed. Included are descriptions of methods for managing land subsidence by fluid injection; for preventing undesirable induced seismicity or mitigating the effects of seismic events; for managing liquid wastes through pretreatment or subsurface injection; for controlling H/sub 2/S by dispersal, reinjection, and chemical treatment of effluents; and for minimizing the impact of noise from power plants by setting up buffer zones and exclusion areas.

Snoeberger, D.F.; Hill, J.H.

1978-10-05T23:59:59.000Z

257

Wine Valley Inn: A mineral water spa in Calistoga, California. Geothermal-energy-system conceptual design and economic feasibility  

DOE Green Energy (OSTI)

The purpose of this study is to determine the engineering and economic feasibility for utilizing geothermal energy for air conditioning and service water heating at the Wine Valley Inn, a mineral water spa in Calistoga, California. The study evaluates heating, ventilating, air conditioning and water heating systems suitable for direct heat geothermal application. Due to the excellent geothermal temperatures available at this site, the mechanics and economics of a geothermally powered chilled water cooling system are evaluated. The Wine Valley Inn has the resource potential to have one of the few totally geothermal powered air conditioning and water heating systems in the world. This total concept is completely developed. A water plan was prepared to determine the quantity of water required for fresh water well development based on the special requirements of the project. An economic evaluation of the system is included to justify the added capital investment needed to build the geothermally powered mineral spa. Energy payback calculations are presented. A thermal cascade system is proposed to direct the geothermal water through the energy system to first power the chiller, then the space heating system, domestic hot water, the two spas and finally to heat the swimming pool. The Energy Management strategy required to automatically control this cascade process using industrial quality micro-processor equipment is described. Energy Management controls are selected to keep equipment sizing at a minimum, pump only the amount of geothermal water needed and be self balancing.

Not Available

1981-10-26T23:59:59.000Z

258

Pilot fruit drier for Los Azufres geothermal field, Michoacan, Mexico  

DOE Green Energy (OSTI)

Comision Federal de Electricidad (CFE) has a Division in charge of the exploration of a geothermal reservoir located in Los Azufres, State of Michoacan. At present, CFE is only using the steam of the wells and rejecting the hot water that comes off associated with the steam. Based on a trip to the Los Azufres geothermal field in December of 1992, a design for a pilot geothermal fruit drier was undertaken for CFE. The details of the geothermal field and the local fruit production are detailed.

Lund, J.W.

1993-02-01T23:59:59.000Z

259

Field Mapping At Raft River Geothermal Area (1990) | Open Energy  

Open Energy Info (EERE)

Field Mapping At Raft River Geothermal Area (1990) Field Mapping At Raft River Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Raft River Geothermal Area (1990) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Field Mapping Activity Date 1990 Usefulness not indicated DOE-funding Unknown Notes Together, field and 40Ar/39Ar results suggest that Late Cretaceous extension occurred in the Sevier belt hinterland at the same time as shortening in the eastern foreland and at depth in the hinterland. Sufficient topography must have been present to drive upper-crustal extension in the eastern hinterland. References Wells, M.L.; Allmendinger, R.W.; Dallmeyer, R.D. (1 October 1990) Late Cretaceous extension in the hinterland of the Sevier thrust belt,

260

A Preliminary Structural Model for the Blue Mountain Geothermal Field,  

Open Energy Info (EERE)

Structural Model for the Blue Mountain Geothermal Field, Structural Model for the Blue Mountain Geothermal Field, Humboldt County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Preliminary Structural Model for the Blue Mountain Geothermal Field, Humboldt County, Nevada Abstract The Blue Mountain geothermal field is a blind geothermalprospect (i.e., no surface hot springs) along the west flank of BlueMountain in southern Humboldt County, Nevada. Developmentwells in the system have high flow rates and temperatures above190┬░C at depths of ~600 to 1,070 m. Blue Mountain is a small~8-km-long east-tilted fault block situated between the EugeneMountains and Slumbering Hills. The geothermal field occupiesthe intersection between a regional NNE- to ENE-striking,west-dipping

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
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261

Recency of Faulting and Neotectonic Framework in the Dixie Valley  

Open Energy Info (EERE)

of Faulting and Neotectonic Framework in the Dixie Valley of Faulting and Neotectonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Recency of Faulting and Neotectonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range Abstract We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal development. The

262

An Audiomagnetotelluric Survey Over The Chaves Geothermal Field (Ne  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon ┬╗ An Audiomagnetotelluric Survey Over The Chaves Geothermal Field (Ne Portugal) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Audiomagnetotelluric Survey Over The Chaves Geothermal Field (Ne Portugal) Details Activities (0) Areas (0) Regions (0) Abstract: In an attempt to define the resistivity model of the Chaves geothermal field in NE Portugal, a detailed survey with scalar audiomagnetotelluric measurements was performed. The soundings were made in the frequency range from 2300 to 4.1 Hz. Electrical resistivity models were derived from the application of 1-D inversion, 2-D trial and error modeling and 2-D inversion procedures. The resistivities inside the geothermal field are low, reaching not more than 30 ╬ęm and increasing up to 60-150 ╬ęm

263

A Fluid-Inclusion Investigation Of The Tongonan Geothermal Field,  

Open Energy Info (EERE)

Fluid-Inclusion Investigation Of The Tongonan Geothermal Field, Fluid-Inclusion Investigation Of The Tongonan Geothermal Field, Philippines Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Fluid-Inclusion Investigation Of The Tongonan Geothermal Field, Philippines Details Activities (0) Areas (0) Regions (0) Abstract: At least 660 fluid-inclusion homogenization temperature (Th) and 44 freezing temperature (Tm) measurements, mainly on anhydrite crystals sampled to 2.5 km depth from 28 wells, record thermal and chemical changes in the Tongonan geothermal field. Interpretations of the Th (175-368┬░C range). Tm (-0.3 to -12.7┬░C range) and crushing stage observations indicate that early trapped fluids contained up to (approximate)2 mol% CO2 (now measured at <0.4 mol%). reservoir temperatures have decreased by

264

Field Mapping At Raft River Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Field Mapping At Raft River Geothermal Area (1977) Field Mapping At Raft River Geothermal Area (1977) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Field Mapping Activity Date 1977 Usefulness useful DOE-funding Unknown Exploration Basis To estimate the permeability and storage parameters of the geothermal reservoir, and the possible existence of barrier boundaries. Notes Production and interference tests were conducted on the geothermal wells RRGE 1 and RRGE 2 during September--November, 1975. In all, three tests were conducted, two of them being short-duration production tests and one, a long duration interference test. The data collected during the tests also indicated that the reservoir pressure varies systematically in response to the changes in the Earth's gravitational field caused by the passage of the

265

Characterizing Structural Controls of Geothermal Fields in the Northwestern  

Open Energy Info (EERE)

Characterizing Structural Controls of Geothermal Fields in the Northwestern Characterizing Structural Controls of Geothermal Fields in the Northwestern Great Basin- A Progress Report Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Characterizing Structural Controls of Geothermal Fields in the Northwestern Great Basin- A Progress Report Abstract Considering a lack of recent volcanism, the abundant geothermal activity in the northwestern Great Basin is somewhat anomalous. The prolific activity may result from enhanced dilation on N- to NNE-striking normal faults induced by a transfer of NW-directed dextral shear from the Walker Lane to NW-directed extension in the Great Basin. Although faults control most geothermal activity in the Great Basin, few detailed investigations have been conducted on the specific structural controls of individual fields.

266

Brawley Resurrection of a Previously Developed Geothermal Field | Open  

Open Energy Info (EERE)

Brawley Resurrection of a Previously Developed Geothermal Field Brawley Resurrection of a Previously Developed Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Brawley Resurrection of a Previously Developed Geothermal Field Abstract The Brawley Geothermal Field was originally developed byUnocal. In addition to drilling geothermal wells, this developmentincluded building and operating a 10 MWe power plant.Corrosion and scaling issues resulted in Unocal abandoning theproject in the 1980's. Ormat Nevada investigated the potentialof the shallow sands in 2006. It was concluded that these matrixpermeablesands contained moderately saline water, high porosity,and could support a binary-type power plant. In 2007, OrmatNevada drilled and tested five wells. These test results confirmedthe earlier conclusions and

267

Active Faulting in the Coso Geothermal Field, Eastern California | Open  

Open Energy Info (EERE)

Faulting in the Coso Geothermal Field, Eastern California Faulting in the Coso Geothermal Field, Eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Active Faulting in the Coso Geothermal Field, Eastern California Details Activities (1) Areas (1) Regions (0) Abstract: New mapping documents a series of late Quaternary NNE-striking normal faults in the central Coso Range that dip northwest, toward and into the main production area of the Coso geothermal field. The faults exhibit geomorphic features characteristic of Holocene activity, and locally are associated with fumaroles and hydothermal alteration. The active faults sole into or terminate against the brittle-ductile transition zone (BDT) at a depth of about 4 to 5 km. The BDT is arched upward over a volume of crust

268

Field Mapping At Coso Geothermal Area (1999) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Coso Geothermal Area (1999) Field Mapping At Coso Geothermal Area (1999) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (1999) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 1999 Usefulness not indicated DOE-funding Unknown Exploration Basis Develop an understanding of the sedimentology and stratigraphy of well-exposed Cenozoic sedimentary strata Notes A detailed sedimentation and tectonics study of the Coso Formation was undertaken to provide a more complete picture of the development of the Basin and Range province in this area. Detailed mapping and depositional analysis distinguishes separate northern and southern depocenters, each with its own accommodation and depositional history.

269

The Northern Fish Lake Valley Pull-Apart Basin: Geothermal Prospecting with Hyperspectral Imaging  

SciTech Connect

High fidelity continuous surface mineralogy maps are combined with local and regional structural models in order to define/refine exploration targets in Fish Lake Valley, NV. Surface mineralogy is derived from a 400 km{sup 2} airborne hyperspectral survey collected in July 2003. Smart and efficient first-tier algorithms consisting primarily of band indices were developed to process and 'spectrally strain' the large dataset for zones of prospective mineral assemblages. The reduced mineral targets then endured re-processing with more sophisticated spectral identification and mapping algorithms. A site at the intersection of the east-trending Coaldale Fault and north-northeast-trending Emigrant Peak Fault Zone was delineated and re-processed for further spectral identification. Populations of montmorillonite, kaolinite, jarosite, alunite and pyrophyllite in this region indicate anomalous geothermal gradients now or in the past and sustained hydrothermal discharge along faults, fractures and contacts in far northeastern Fish Lake Valley. Increased permeability and higher geothermal inputs at this locale are likely due to the transtensional deformation that focuses in this portion of the major right-stepover of the central Walker Lane deformation belt.

Martini, B; Hausknecht, P; Pickles, W

2004-04-26T23:59:59.000Z

270

Seismic monitoring at the Geysers Geothermal Field  

DOE Green Energy (OSTI)

This report summarizes the efforts of LBL to utilize MEQ data in reservoir definition as well as in evaluating its performance. Results of the study indicate that the velocity and attenuation variations correlate with the known geology of the field. At the NW Geysers, high velocity anomalies correspond to metagraywacke and greenstone units while low velocity anomalies seem to be associated with Franciscan melanges. Low Vp/Vs and high attenuation delineate the steam reservoir suggesting undersaturation of the reservoir rocks. Ongoing monitoring of Vp/Vs may be useful in tracking the expansion of the steam zone with time. Spatial and temporal patterns of seismicity exhibit compelling correlation with geothermal exploitation. Clusters of MEQs occur beneath active injection wells and appear to shift with changing injection activities. High resolution MEQ locations hold promise for inferring fluid flow paths, especially in tracking injectate. This study has demonstrated that continuous seismic monitoring may be useful as an active reservoir management tool.

Romero, A.E. Jr.; Kirkpatrick, A.; Majer, E.L.; Peterson, J.E. Jr.

1994-09-01T23:59:59.000Z

271

Potential growth of electric power production from Imperial Valley geothermal resources  

DOE Green Energy (OSTI)

The growth of geothermal electric power operations in Imperial Valley, California is projected over the next 40 years. With commercial power forecast to become available in the 1980's, the scenario considers three subsequent growth rates: 40, 100, and 250 MW per year. These growth rates, along with estimates of the total resource size, result in a maximum level of electric power production ranging from 1000 to 8000 MW to be attained in the 2010 to 2020 time period. Power plant siting constraints are developed and used to make siting patterns for the 400- through 8000-MW level of power production. Two geothermal technologies are included in the scenario: flashed steam systems that produce cooling water from the geothermal steam condensate and emit noncondensable gases to the atmosphere; and high pressure, confined flow systems that inject the geoghermal fluid back into the ground. An analysis of the scenario is made with regard to well drilling and power plant construction rates, land use, cooling water requirements, and hydrogen sulfide emissions.

Ermak, D.L.

1977-09-30T23:59:59.000Z

272

A Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) | Open  

Open Energy Info (EERE)

Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) Details Activities (0) Areas (0) Regions (0) Abstract: A preliminary magnetotelluric study consisting of twenty measurements, in the frequency range 128-0.016 Hz, was undertaken on the active volcanic island of Nissyros. Two boreholes identify the existence of high enthalpy manifestations. The results correlate well with the borehole logs and delineate, in a 1-D approximation, the existence and symmetry of a possible geothermal reservoir. Some of the main faulting features were detected as well as an inferred highly conductive zone at the centre of the

273

A Broadband Tensorial Magnetotelluric Study In The Travale Geothermal Field  

Open Energy Info (EERE)

Broadband Tensorial Magnetotelluric Study In The Travale Geothermal Field Broadband Tensorial Magnetotelluric Study In The Travale Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Broadband Tensorial Magnetotelluric Study In The Travale Geothermal Field Details Activities (0) Areas (0) Regions (0) Abstract: As a contribution to the EEC study of the potential contribution of electric and electromagnetic techniques to geothermal exploration, magnetotelluric studies have been undertaken with a sounding bandwidth ranging from 2 to 7 decades of period at more than 30 sites within the chosen test area of Travale. This area must be one of the most unfavourable for the application of electrical techniques on account both of the thickness (up to 2 km) of conducting (< 1 ohm / m in some locations) cover

274

Assessment of the geothermal resources of Carson-Eagle valleys and Big Smoky Valley, Nevada. First annual report, May 1, 1979-May 30, 1980  

DOE Green Energy (OSTI)

Two geothermal investigations were completed in three Nevada locations. The regions studied were selected from areas outlined as having direct utilization potential (Trexler and others, 1979) and included the Carson-Eagle Valley, Bis Smoky Valley and Caliente. Studies were organized around the completion of a group of tasks in each area. These tasks included: geologic reconnaissance, gravity surveys, aerial photography, fluid sampling and analysis, shallow depth temperature probe surveys, soil mercury surveys, shallow electrical resistivity measurements, and temperature gradient hole drilling. Goals of the project were to provide regional information about the nature and extent of the resources and to offer a critical evaluation of the techniques employed. Results from the work in the Carson-Eagle Valley and Big Smoky Valley are presented. (MHR)

Trexler, D.T.; Koenig, B.A.; Flynn, T.; Bruce, J.L.

1980-01-01T23:59:59.000Z

275

Geological, geochemical, and geophysical survey of the geothermal resources at Hot Springs Bay Valley, Akutan Island, Alaska  

DOE Green Energy (OSTI)

An extensive survey was conducted of the geothermal resource potential of Hot Springs Bay Valley on Akutan Island. A topographic base map was constructed, geologic mapping, geophysical and geochemical surveys were conducted, and the thermal waters and fumarolic gases were analyzed for major and minor element species and stable isotope composition. (ACR)

Motyka, R.J.; Wescott, E.M.; Turner, D.L.; Swanson, S.E.; Romick, J.D.; Moorman, M.A.; Poreda, R.J.; Witte, W.; Petzinger, B.; Allely, R.D.

1985-01-01T23:59:59.000Z

276

A Fluid-Inclusion Investigation Of The Tongonan Geothermal Field...  

Open Energy Info (EERE)

on anhydrite crystals sampled to 2.5 km depth from 28 wells, record thermal and chemical changes in the Tongonan geothermal field. Interpretations of the Th (175-368C...

277

The Ahuachapan geothermal field, El Salvador: Reservoir analysis  

DOE Green Energy (OSTI)

These are appendices A thru E of the Ahuachapan geothermal field reservoir analysis. The volume contains: mineralogy contours, ionic chlorine and silicon dioxide contours, well summaries, and temperature and pressure effects. (JEF)

Aunzo, Z.; Bodvarsson, G.S.; Laky, C.; Lippmann, M.J.; Steingrimsson, B.; Truesdell, A.H.; Witherspoon, P.A. (Lawrence Berkeley Lab., CA (USA); Icelandic National Energy Authority, Reykjavik (Iceland); Geological Survey, Menlo Park, CA (USA))

1989-08-01T23:59:59.000Z

278

Reservoir enhancement on the impermeable margins of productive geothermal fields  

DOE Green Energy (OSTI)

This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos national Laboratory (LANL). The overall goal of the project was to evaluate the performance of Los Alamos technology in selected geothermal fields, to adapt the technology to the existing industry infrastructure where necessary, and to facilitate its application through demonstration and communication. The primary specific objective was to identify, collaborate, and partner with geothermal energy- producing companies in an evaluation of the application of Los Alamos microseismic mapping technology for locating fracture permeability in producing geothermal fields.

Goff, S.; Gardner, J.; Dreesen, D.; Whitney, E.

1997-01-01T23:59:59.000Z

279

Symposium in the field of geothermal energy  

DOE Green Energy (OSTI)

Mexico and the US are nations with abundant sources of geothermal energy, and both countries have progressed rapidly in developing their more accessible resources. For example, Mexico has developed over 600 MWe at Cerro Prieto, while US developers have brought in over 2000 MWe at the Geysers. These successes, however, are only a prologue to an exciting future. All forms of energy face technical and economic barriers that must be overcome if the resources are to play a significant role in satisfying national energy needs. Geothermal energy--except for the very highest grade resources--face a number of barriers, which must be surmounted through research and development. Sharing a common interest in solving the problems that impede the rapid utilization of geothermal energy, Mexico and the US agreed to exchange information and participate in joint research. An excellent example of this close and continuing collaboration is the geothermal research program conducted under the auspices of the 3-year agreement signed on April 7, 1986 by the US DOE and the Mexican Comision Federal de Electricidad (CFE). The major objectives of this bilateral agreement are: (1) to achieve a thorough understanding of the nature of geothermal reservoirs in sedimentary and fractured igneous rocks; (2) to investigate how the geothermal resources of both nations can best be explored and utilized; and (3) to exchange information on geothermal topics of mutual interest.

Ramirez, Miguel; Mock, John E.

1989-04-01T23:59:59.000Z

280

SELF-POTENTIAL SURVEY AT THE CERRO PRIETO GEOTHERMAL FIELD, BAJA CALIFORNIA, MEXICO  

E-Print Network (OSTI)

Presented at the Geothermal Resources Council 1978 AnnualPrepared for the Division of Geothermal Energy of the U. S.of th'e dipole in km. Geothermal Field, Baja Cal ifornia,

Corwin, R.F.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Development of an Enhanced Two-Phase Production System at the Geysers Geothermal Field  

DOE Green Energy (OSTI)

A method was developed to enhance geothermal steam production from two-phase wells at THE Geysers Geothermal Field. The beneficial result was increased geothermal production that was easily and economically delivered to the power plant.

Steven Enedy

2001-12-14T23:59:59.000Z

282

A STUDY OF ALTERNATIVE REINJECTION SCHEMES FOR THE CERRO PRIETO GEOTHERMAL FIELD, BAJA CALIFORNIA, MEXICO  

E-Print Network (OSTI)

Presented at the Geothermal Resources . Council 1978 Annual~RTHE CERRO PRIETO , GEOTHERMAL FIELD, BAJI:\\CI:\\LIFORNIA. ,Prepared for the Division of Geothermal Energy of the U. S.

Tsang, C.-F.

2011-01-01T23:59:59.000Z

283

Geothermal Resource Analysis And Structure Of Basin And Range Systems,  

Open Energy Info (EERE)

Analysis And Structure Of Basin And Range Systems, Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Details Activities (12) Areas (5) Regions (0) Abstract: Publish new thermal and drill data from the Dizie Valley Geothermal Field that affect evaluation of Basin and Range Geothermal Resources in a very major and positive way. Completed new geophysical surveys of Dizie Valley including gravity and aeromagnetics and integrated the geophysical, seismic, geological and drilling data at Dizie Valley into local and regional geologic models. Developed natural state mass and energy

284

Power produced from hot dry rock geothermal resources: a case study for the Imperial Valley, California  

SciTech Connect

The case study described here concerns an HDR system which provides geothermal fluids for a hypothetical electric plant located in California's Imperial Valley. Primary concern is focused on the implications of differing drilling conditions, as reflected by costs, and differing risk environments for the potential commercialization of an HDR system. Drilling costs for best, medium and worst drilling conditions are taken from a recent study of drilling costs for HDR systems. Differing risk environments are presented by differing rate of return requirements on stocks and interest on bonds which the HDR system is assumed to pay; rate of return/interest combinations considered are 6%/3%, 9%/6%, 12%/9% and 15%/12%. The method used for analyzing the HDR system involves a two-stage process. In stage 1, the maximum amount that the electric plant can pay to an HDR system for geothermal fluids is calculated for alternative busbar prices of electricity received by the electric plant. In stage 2, costs for the HDR system are calculated under differing assumed risk environments and drilling conditions. These two sets of data may then be used to analyze the minimum busbar price of electricity - which defines a maximum fuel bill that could be paid to the HDR system by the electric plant - which could result in the HDR system's full recouperation of all production and drilling costs.

Cummings, R.G.; Morris, G.E.; Arundale, C.J.; Erickson, E.L.

1979-12-01T23:59:59.000Z

285

Dixie Valley, Nevada: A promising geothermal area under development by industry  

Science Conference Proceedings (OSTI)

Selected subsurface reservoirs located in the Western United States may contain significant geothermal energy, and if development continues, this energy source may provide substantial electrical power or related energy by the year 2,000. Utility management must be convinced of the reliability and cost attractiveness of this energy source. A number of exploration programs are in progress to evaluate the potential of geothermal energy in the United States. For example, numerous exploration methods have been employed in Dixie Valley, Nevada, since 1967 with mixed results. However, with DOE support, additional data have recently become available. The authors have revised earlier structural models of the basin and have made recommendations for additional investigations that should assist in clarifying the geologic relationships within the reservoir. The principal geologic characteristics of the reservoir that may place limits on project economics appear to be the depth and trend area of producing zones, fluid quality and the amenability of the upper zones to accept large volumes of spent fluids. However, reservoir temperature, flow rates, recharge characteristics, and other factors appear to be acceptable either for electrical power production of more than 1,000 MWe, or for direct applications such as on-site agricultural processing.

Campbell, M.D.

1983-08-01T23:59:59.000Z

286

Final Technical Report; Geothermal Resource Evaluation and Definitioni (GRED) Program-Phases I, II, and III for the Animas Valley, NM Geothermal Resource  

DOE Green Energy (OSTI)

This report contains a detailed summary of a methodical and comprehensive assessment of the potential of the Animas Valley, New Mexico geothermal resource leasehold owned by Lightning Dock Geothermal, Inc. Work described herein was completed under the auspices of the Department of Energy (DOE) Cooperative Agreement DE-FC04-00AL66977, Geothermal Resource Evaluation and Definition (GRED) Program, and the work covers the time span from June 2001 through June 2004. Included in this new report are detailed results from the GRED Program, including: geophysical and geochemical surveys, reflection seismic surveys, aeromagnetic surveys, gravity and electrical resistivity surveys, soil thermal ion and soil carbon dioxide flux surveys, four temperature gradient holes, and one deep exploratory well.

Cunniff, Roy A.; Bowers, Roger L.

2005-08-01T23:59:59.000Z

287

Development of an injection augmentation program at the Dixie Valley,  

Open Energy Info (EERE)

an injection augmentation program at the Dixie Valley, an injection augmentation program at the Dixie Valley, Nevada geothermal field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Development of an injection augmentation program at the Dixie Valley, Nevada geothermal field Abstract Evaporative cooling at geothermal power plants generally reduces reservoir pressures even if all available geothermal liquids are reinjected. Controlled programs of injecting non geothermal waters directly into reservoirs have been tested or implemented at only four fields, three of them being vapor dominated. At the liquid-dominated Dixie Valley geothermal field an unsuccessful search for a large volume source of warm,chemically desirable fluid for augmentation was conducted.After determining water

288

The Geysers Geothermal Field Update1990/2010  

E-Print Network (OSTI)

iná Theá Geysers. á GeothermaláResourcesáCounciláAá plannedá Enhancedá Geothermalá Systemá demonstrationáproject. á Geothermalá Resourcesá Councilá Transactionsá33,á

Brophy, P.

2012-01-01T23:59:59.000Z

289

3D Magnetotelluic characterization of the Coso GeothermalField  

Science Conference Proceedings (OSTI)

Electrical resistivity may contribute to progress inunderstanding geothermal systems by imaging the geometry, bounds andcontrolling structures in existing production, and thereby perhapssuggesting new areas for field expansion. To these ends, a dense grid ofmagnetotelluric (MT) stations plus a single line of contiguous bipolearray profiling has been acquired over the east flank of the Cosogeothermal system. Acquiring good quality MT data in producing geothermalsystems is a challenge due to production related electromagnetic (EM)noise and, in the case of Coso, due to proximity of a regional DCintertie power transmission line. To achieve good results, a remotereference completely outside the influence of the dominant source of EMnoise must be established. Experimental results so far indicate thatemplacing a reference site in Amargosa Valley, NV, 65 miles from the DCintertie, isstill insufficient for noise cancellation much of the time.Even though the DC line EM fields are planar at this distance, theyremain coherent with the nonplanar fields in the Coso area hence remotereferencing produces incorrect responses. We have successfully unwrappedand applied MT times series from the permanent observatory at Parkfield,CA, and these appear adequate to suppress the interference of thecultural EM noise. The efficacy of this observatory is confirmed bycomparison to stations taken using an ultra-distant reference site eastof Socorro, NM. Operation of the latter reference was successful by usingfast ftp internet communication between Coso Junction and the New MexicoInstitute of Mining and Technology, using the University of Utah site asintermediary, and allowed referencing within a few hours of datadownloading at Coso. A grid of 102 MT stations was acquired over the Cosogeothermal area in 2003 and an additional 23 stations were acquired toaugment coverage in the southern flank of the first survey area in 2005.These data have been inverted to a fully three-dimensional conductivitymodel. Initial analysis of the Coso MT data was carried out using 2D MTimaging. An initial 3D conductivity model was constructed from a seriesof 2D resistivity images obtained using the inline electric fieldmeasurements (Zyx impedance elements) along several measurementtransects. This model was then refined through a 3D inversion process.This model shows the controlling geological structures possiblyinfluencing well production at Coso and correlations with mapped surfacefeatures such as faults and regional geoelectric strike. The 3D modelalso illustrates the refinement in positioning of conductivity contactswhen compared to isolated 2D inversion transects. The conductivity modelhas also been correlated with microearthquake locations, well fluidproduction intervals and most importantly with an acoustic and shearvelocity model derived by Wu and Lees (1999). This later correlationshows the near-vertical high conductivity structure on the eastern flankof the producing field is also a zone of increased acoustic velocity andincreased Vp/Vs ratio bounded by mapped fault traces. South of theDevil's Kitchen is an area of high geothermal well density, where highlyconductive near surface material is interpreted as a clay cap alterationzone manifested from the subsurface geothermal fluids and relatedgeochemistry. Beneath the clay cap, however, the conductivity isnondescript, whereas the Vp/Vs ratio is enhanced over the productionintervals. It is recommended that more MT data sites be acquired to thesouthwest of the Devil's Kitchen area to better refine the conductivitymodel in that area.

Newman, Gregory A.; Hoversten, G. Michael; Wannamaker, Philip E.; Gasperikova, Erika

2007-04-23T23:59:59.000Z

290

Monitoring natural subsidence and seismicity in the Imperial Valley as a basis for evaluating potential impacts of geothermal production  

DOE Green Energy (OSTI)

Results of work done on potential geologic effects of geothermal development are discussed. The key geological issues in the Imperial Valley are the potential for significant subsidence and seismicity which could be induced by geothermal production. The major technical problem is to develop techniques to distinguish between natural and induced activity. In both subsidence and seismicity studies, the projects augment the existing network to obtain additional information in critical areas; thus, local subsidence detection networks were added to the regional networks. The U.S. Geological Survey seismograph network was augmented to increase sensitivity to small earthquakes near the Salton Sea. Techniques being used and initial results are summarized briefly. (JGB)

Crow, N.B.; Kasamayer, P.W.

1978-04-04T23:59:59.000Z

291

Geochemical modeling of the Raft River geothermal field | Open Energy  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon ┬╗ Geochemical modeling of the Raft River geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geochemical modeling of the Raft River geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: The results to date of chemical modeling of the Raft River KGRA are presented. Earlier work indicated a northwest-southeast anomaly in the contours. Modeling techniques applied to more complete data allowed further definition of the anomaly. Models described in this report show the source of various minerals in the geothermal water. There appears to be a regional heat source that gives rise to uniform conductive heat flow in the region, but convective flow is concentrated near the upwelling in the Crook well

292

High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley  

Open Energy Info (EERE)

Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Abstract N/A Author V. J. S. Grauch Published U.S. Geological Survey, 2002 Report Number 02-384 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Citation V. J. S. Grauch. 2002. High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada. (!) : U.S. Geological Survey. Report No.: 02-384. Retrieved from "http://en.openei.org/w/index.php?title=High-Resolution_Aeromagnetic_Survey_to_Image_Shallow_Faults,_Dixie_Valley_Geothermal_Field,_Nevada&oldid=682601"

293

Geothermal reservoir at Tatapani Geothermal field, Surguja district, Madhya Pradesh, IN  

SciTech Connect

The Tatapani Geothermal field, located on the Son-Narmada mega lineament is one of the most intense geothermal manifestation, with hot spring temperature of 98░c. in Central India. 21 Exploratory and thermal gradient boreholes followed by 5 production wells for proposed 300 KWe binary cycle power plant, have revealed specific reservoir parameters of shallow geothermal reservoir of 110░c in upper 350 m of geothermal system and their possible continuation to deeper reservoir of anticipated temperature of 160 ▒ 10░c. Testing of five production wells done by Oil and Natural Gas Corporation concurrently with drilling at different depths and also on completion of drilling, have established feeder zones of thermal water at depth of 175-200 m, 280-300 m, maximum temperature of 112.5░c and bottom hole pressure of 42 kg/cm▓. Further interpretation of temperature and pressure profiles, injection test, well head discharges and chemical analysis data has revealed thermal characteristics of individual production wells and overall configuration of .thermal production zones with their permeability, temperature, and discharge characteristics in the shallow thermal reservoir area. Well testing data and interpretation of reservoir parameters therefrom, for upper 350 m part of geothermal system and possible model of deeper geothermal reservoir at Tatapani have been presented in the paper.

Pitale, U.L.; Sarolkar, P.B.; Rawat, H.S.; Shukia, S.N.

1996-01-24T23:59:59.000Z

294

3D Extended Logging for Geothermal Resources: Field Trials with the Geo-Bilt System  

DOE Green Energy (OSTI)

Geo-BILT (Geothermal Borehole Induction Logging Tool) is an extended induction logging tool designed for 3D resistivity imaging around a single borehole. The tool was developed for deployment in high temperature geothermal wells under a joint program funded by the California Energy Commission, Electromagnetic Instruments (EMI) and the U.S. Department of Energy. EM1 was responsible for tool design and manufacture, and numerical modeling efforts were being addressed at Lawrence Livermore Laboratory (LLNL) and other contractors. The field deployment was done by EM1 and LLNL. The tool operates at frequencies from 2 to 42 kHz, and its design features a series of three-component magnetic sensors offset at 2 and 5 meters from a three-component magnetic source. The combined package makes it possible to do 3D resistivity imaging, deep into the formation, from a single well. The manufacture and testing of the tool was completed in spring of 2001, and the initial deployment of Geo-BILT occurred in May 2001 at the Lost Hills oil field in southern California at leases operated by Chevron USA. This site was chosen for the initial field test because of the favorable geological conditions and the availability of a number of wells suitable for tool deployment. The second deployment occurred in April 2002 at the Dixie Valley geothermal field, operated by Caithness Power LLC, in central Nevada. This constituted the first test in a high temperature environment. The Chevron site features a fiberglass-cased observation well in the vicinity of a water injector. The injected water, which is used for pressure maintenance and for secondary sweep of the heavy oil formation, has a much lower resistivity than the oil bearing formation. This, in addition to the non-uniform flow of this water, creates a 3D resistivity structure, which is analogous to conditions produced from flowing fractures adjacent to geothermal boreholes. Therefore, it is an excellent site for testing the 3D capability of the tool in a low risk environment. The Dixie Valley site offered an environment where the tool could locate near-well fractures associated with steam development. The Lost Hills field measurements yielded a data set suitable for 3D imaging. The Geo-BLT data corresponded to existing conventional logging data and showed clear indications, in several depth intervals, of near-well 3D structure. Subsequent 3D inversion of these data produced a model consistent with non-planar water flow in specific layers. The Dixie Valley measurements identified structures associated with dike intrusions and water inflow at particular depths. Preliminary analysis suggests these structures are steeply dipping, which is consistent with the geology.

Mallan, R; Wilt, M; Kirkendall, B; Kasameyer, P

2002-05-29T23:59:59.000Z

295

Borehole geophysics evaluation of the Raft River geothermal reservoir,  

Open Energy Info (EERE)

reservoir, reservoir, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; GEOPHYSICAL SURVEYS; RAFT RIVER VALLEY; GEOTHERMAL EXPLORATION; BOREHOLES; EVALUATION; HOT-WATER SYSTEMS; IDAHO; MATHEMATICAL MODELS; WELL LOGGING; CAVITIES; EXPLORATION; GEOTHERMAL SYSTEMS; HYDROTHERMAL SYSTEMS; NORTH AMERICA; PACIFIC NORTHWEST REGION; USA Author(s): Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace, T.L. Published: Geophysics, 2/1/1977 Document Number: Unavailable DOI: Unavailable Source: View Original Journal Article Geophysical Method At Raft River Geothermal Area (1977) Raft River Geothermal Area

296

Utility of drill-stem tests in determination of the geothermal regime of Railroad Valley, Nye County, Nevada  

Science Conference Proceedings (OSTI)

Accurate representation of geothermal conditions is necessary to determine generation potential of source rocks buried in Railroad Valley. Boreholes, provide the best source of geothermal information, but formation temperature data must be screened for variations caused by drilling. Bottomhole temperatures from wireline logs are affected by initial formation conditions, drilling fluid that moves into the formation while drilling, and lag time between cessation of drilling fluid circulation and acquisition of logs. More accurate indicators of formation conditions are temperatures recorded during drill-stem tests, especially for tests that recovered large amounts of fluid. Over 130 drill-stem tests were examined to establish the viability of this source of data and to determine the geothermal conditions of the Railroad Valley basin. Results indicate that 500 feet or more of fluid recovery on a test is necessary to get a temperature recorded that is not influenced by drilling perturbations. The formation temperature data collected for Railroad Valley indicate the possibility of 2 thermal regimes. A low-temperature gradient regime is probably influenced by meteoric water. The high-temperature gradient regime probably reflects the regional heat flow associated with the thin crust of the Great Basin.

French, D.E. [Independent Geologist, Billings, MT (United States)

1995-06-01T23:59:59.000Z

297

Field Mapping At Raft River Geothermal Area (1993) | Open Energy  

Open Energy Info (EERE)

Exploration Activity: Field Mapping At Raft River Geothermal Area (1993) Exploration Activity: Field Mapping At Raft River Geothermal Area (1993) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Field Mapping Activity Date 1993 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the importance of Early to Middle Miocene period in the northern Basin and Range region. Notes New apatite fission track cooling age and track length data, supplemented by other information, point to the Early to Middle Miocene as an additional time of very significant extension-induced uplift and range formation. Many ranges in a 700-km-long north-south corridor from the Utah-Nevada-Idaho border to southernmost Nevada experience extension and major exhumation in Early to Middle Miocene time. Reconnaissance apatite ages from the Toiyabe

298

Low-temperature geothermal assessment of the Santa Clara and Virgin River Valleys, Washington County, Utah  

DOE Green Energy (OSTI)

Exploration techniques included the following: (1) a temperature survey of springs, (2) chemical analyses and calculated geothermometer temperatures of water samples collected from selected springs and wells, (3) chemical analyses and calculated geothermometer temperatures of spring and well water samples in the literature, (4) thermal gradients measured in accessible wells, and (5) geology. The highest water temperature recorded in the St. George basin is 42/sup 0/C at Pah Tempe Hot Springs. Additional spring temperatures higher than 20/sup 0/C are at Veyo Hot Spring, Washington hot pot, and Green Spring. The warmest well water in the study area is 40/sup 0/C in Middleton Wash. Additional warm well water (higher than 24.5/sup 0/C) is present north of St. George, north of Washington, southeast of St. George, and in Dameron Valley. The majority of the Na-K-Ca calculated reservoir temperatures range between 30/sup 0/ and 50/sup 0/C. Anomalous geothermometer temperatures were calculated for water from Pah Tempe and a number of locations in St. George and vicinity. In addition to the known thermal areas of Pah Tempe and Veyo Hot Spring, an area north of Washington and St. George is delineated in this study to have possible low-temperature geothermal potential.

Budding, K.E.; Sommer, S.N.

1986-01-01T23:59:59.000Z

299

Geothermal field tests: heat exchanger evaluation  

DOE Green Energy (OSTI)

Results of the heat exchanger tests conducted on a scale model of a heat exchanger that has been designed and fabricated for the Geothermal Test Facility show that this exchanger will lose 60% of its heat transfer capability and fall below design requirements after 92 hours of operation. When the test exchanger was clean and operating as close as possible to design conditions, its overall heat transfer coefficient was 426 BTU/hr-ft/sup 2/ - /sup 0/f. when calculating in the fouling factor of .0035 this gave a design coefficient of 171 BTU/hr-ft/sup 2/ - /sup 0/f which was reached after less than four days of steady state operation. Thermal shocking of the test heat exchanger once each hour while the exchanger was operating at design conditions had no effect on scale removal or heat transfer. Results of tube cleaning showed that chemical treatment with 30% hydrochloric acid followed by a high pressure water jet (6000 psig), was effective in removing scale from tubes contacted with geothermal brine. After cleaning, the tubes were examined and some pitting was observed throughout the length of one tube.

Felsinger, D.E.

1973-07-06T23:59:59.000Z

300

Field Mapping At Beowawe Hot Springs Area (Wesnousky, Et Al....  

Open Energy Info (EERE)

S. John Caskey, John W. Bell (2003) Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Retrieved...

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Isotopic Analysis At Dixie Valley Geothermal Field Area (Kennedy...  

Open Energy Info (EERE)

system. References B. Mack Kennedy, Matthijs C. van Soest (2005) Regional And Local Trends In Helium Isotopes, Basin And Range Province, Western North America- Evidence For Deep...

302

Aeromagnetic Survey At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

correlation will be investigated when the high resolution data are available. The magnetic results will also vary from area to area depending on the local rock types more than...

303

Aluto-Langano Geothermal Field, Ethiopian Rift Valley- Physical...  

Open Energy Info (EERE)

water as steam and produces a cooler saline shallow aquifer. The high partial pressure of carbon dioxide (about 30 bar in the reservoir) depresses the water table and restricts...

304

Engineering and economic feasibility of utilizing geothermal heat from the Heber reservoir for industrial processing purposes at Valley Nitrogen Producers Inc. , El Centro agricultural chemical plant. Final report  

DOE Green Energy (OSTI)

The engineering and economic feasibility of utilizing geothermal heat from the Heber KGRA for industrial processing purposes at the Valley Nitrogen Producers, Inc. El Centro, California agricultural chemical plant was investigated. The analysis proceeds through the preliminary economics to determine the restraints imposed by geothermal modification size on internal rates of return, and through the energy utilization evaluation to determine the best method for substituting geothermal energy for existing fossil fuel energy. Finally, several geothermal utilization schemes were analyzed for detailed cost-benefit evaluation. An economically viable plan for implementing geothermal energy in the VNP Plant was identified and the final conclusions and recommendations were made based on these detailed cost-benefit analyses. Costs associated with geothermal energy production and implementation were formulated utilizing a modified Battelle Pacific Northwest Laboratories' ''GEOCOST'' program.

Sherwood, P.B.; Newman, K.L.

1977-09-01T23:59:59.000Z

305

FLUID GEOCHEMISTRY AT THE RAFT RIVER GEOTHERMAL FIELD, IDAHO- NEW DATA AND  

Open Energy Info (EERE)

FLUID GEOCHEMISTRY AT THE RAFT RIVER GEOTHERMAL FIELD, IDAHO- NEW DATA AND FLUID GEOCHEMISTRY AT THE RAFT RIVER GEOTHERMAL FIELD, IDAHO- NEW DATA AND HYDROGEOLOGICAL IMPLICATIONS Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: FLUID GEOCHEMISTRY AT THE RAFT RIVER GEOTHERMAL FIELD, IDAHO- NEW DATA AND HYDROGEOLOGICAL IMPLICATIONS Details Activities (1) Areas (1) Regions (0) Abstract: Following a period of exploration and development in the mid-late 1970's, there was little activity at the Raft River geothermal field for the next ~20 years. US Geothermal Inc. acquired the project in 2002, and began commercial power generation in January 2008. From mid-2004 to present, US Geothermal Inc. has collected geochemical data from geothermal and monitoring wells in the field, as well as other shallow wells in the

306

Some issues regarding regulatory policy, political participation, and social implications of geothermal resource development in the Imperial Valley  

DOE Green Energy (OSTI)

The early stages of geothermal resource development in the Imperial Valley have been characterized by an emphasis on the technological expertise of private developers and government officials. Government officials have created a complex array of Federal, state and county regulations to monitor the development. Local control is under the jurisdiction of the Imperial County government. The County has as its responsibility the protection of the general welfare of its residents, including any potentially adverse social, economic, or environmental impacts caused by geothermal resource development. Private developers and government officials are interested in the resources as a source of water desalination and electric power generation. An assessment of the interests and concerns of the public was made early in the development stage. In view of all these interests, it is essential in a democratic society that the various interests be identified so government can be representative of, and responsive to, those interests. Therefore, the four issues discussed in the paper are: (1) regulatory problems faced by local government officials in determining the course of development; (2) the social and political context in which the development is taking place; (3) the potential of geothermal development as perceived by community leaders and local government officials; and (4) the desirability of expanding citizen participation in geothermal decision-makingduring a period in which, as public opinion polls indicated, many citizens feel separated from government actions which may significantly affect their lives. Recommendations for regulations of geothermal resources and recommendations for improving public input into geothermal regulation are summarized in depth. (MCW)

Green, P.S.; Steinberger, M.F.

1976-02-01T23:59:59.000Z

307

Geothermal Reservoir Dynamics - TOUGHREACT  

E-Print Network (OSTI)

Swelling in a Fractured Geothermal Reservoir, presented atTHC) Modeling Based on Geothermal Field Data, Geothermics,and Silica Scaling in Geothermal Production-Injection Wells

2005-01-01T23:59:59.000Z

308

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

Geothermal Area Brady Hot Springs Geothermal Area Geothermal Area Brady Hot Springs Geothermal Area Northwest Basin and Range Geothermal Region MW K Coso Geothermal Area Coso Geothermal Area Walker Lane Transition Zone Geothermal Region Pull Apart in Strike Slip Fault Zone Mesozoic Granitic MW K Dixie Valley Geothermal Area Dixie Valley Geothermal Area Central Nevada Seismic Zone Geothermal Region Stepover or Relay Ramp in Normal Fault Zones major range front fault Jurassic Basalt MW K Geysers Geothermal Area Geysers Geothermal Area Holocene Magmatic Geothermal Region Pull Apart in Strike Slip Fault Zone intrusion margin and associated fractures MW K Long Valley Caldera Geothermal Area Long Valley Caldera Geothermal Area Walker Lane Transition Zone Geothermal Region Displacement Transfer Zone Caldera Margin Quaternary Rhyolite MW K

309

The influence of geothermal sources on deep ocean temperature, salinity, and flow fields  

E-Print Network (OSTI)

This thesis is a study of the effect of geothermal sources on the deep circulation, temperature and salinity fields. In Chapter 1 background material is given on the strength and distribution of geothermal heating. In ...

Speer, Kevin G. (Kevin George)

1988-01-01T23:59:59.000Z

310

Evaluation of low-temperature geothermal potential in Utah and Goshen Valleys and adjacent areas, Utah. Part I. Gravity survey  

DOE Green Energy (OSTI)

During 1980 and 1981 a total of 569 new gravity stations were taken in Utah and Goshen Valleys and adjacent areas, Utah. The new stations were combined with 530 other gravity stations taken in previous surveys which resulted in a compilation of 1099 stations which were used in this study. The additional surveys were undertaken to assist in the evaluation of the area for the possible development of geothermal resources by providing an interpreted structural framework by delineating faults, structural trends, intrusions, thickness of valley fill, and increased density of host rock. The gravity data are presented as (1) a complete Bouguer gravity anomaly map with a 2 mgal contour interval on a scale of 1:100,000 and (2) five generally east-trending gravity profiles. A geologic interpretation of the study area was made from the gravity map and from the interpretive geologic cross sections which were modeled along the gravity profiles.

Davis, D.A.; Cook, K.L.

1983-04-01T23:59:59.000Z

311

Heat-flow mapping at the Geysers Geothermal Field  

SciTech Connect

Pertinent data were compiled for 187 temperature-gradient holes in the vicinity of The Geysers Geothermal field. Terrain-correction techniques were applied to most of the temperature-gradient data, and a temperature-gradient map was constructed. Cutting samples from 16, deep, production wells were analyzed for thermal conductivity. From these samples, the mean thermal conductivities were determined for serpentinized ultramafic rock, greenstone, and graywacke. Then, a heat flow map was made. The temperature-gradient and heat-flow maps show that The Geysers Geothermal field is part of a very large, northwesterly-trending, thermal anomaly; the commercially productive portion of the field may be 100 km/sup 2/ in area. The rate that heat energy flows through the surface by thermal conduction is estimated at 1.79 x 10/sup 9/MJ per year. The net heat energy loss from commercial production for 1983 is estimated at 180.14 x 10/sup 9/MJ.

Thomas, R.P.

1986-10-31T23:59:59.000Z

312

NORTHERN NEVADA GEOTHERMAL EXPLORATION STRATEGY ANALYSIS  

E-Print Network (OSTI)

School of Mines Nevada Geothermal Study: Report No. 4, Feb.J. , 1976, Assessing the geothermal resource base of the1977, Microseisms in geothermal Studies in Grass Valley,

Goldstein, N.E.

2011-01-01T23:59:59.000Z

313

Hyperspectral Mineral Mapping In Support Of Geothermal Exploration-  

Open Energy Info (EERE)

Mineral Mapping In Support Of Geothermal Exploration- Mineral Mapping In Support Of Geothermal Exploration- Examples From Long Valley Caldera, Ca And Dixie Valley, Nv, Usa Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Hyperspectral Mineral Mapping In Support Of Geothermal Exploration- Examples From Long Valley Caldera, Ca And Dixie Valley, Nv, Usa Details Activities (2) Areas (2) Regions (0) Abstract: Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic

314

A Reservoir Assessment of the Geysers Geothermal Field  

SciTech Connect

Big Sulphur Creek fault zone, in The Geysers Geothermal field, may be part of a deep-seated, wrench-style fault system. Hydrothermal fluid reservoir may rise through conduits beneath the five main anomalies associated with the Big Sulphur Creek wrench trend. Upon moderately dipping, fracture network. Condensed steam at the steep reservoir flank drains back to the hot water table. These flanks are defined roughly by marginally-producing geothermal wells. Field extensions are expected to be on the southeast and northwest. Some geophysical anomalies (electrical resistivity and audio-magnetotelluric) evidently are caused by the hot water geothermal field or zones of altered rocks; others (gravity, P-wave delays, and possibly electrical resistivity) probably represent the underlying heat source, a possible magma chamber; and others (microearthquake activity) may be related to the steam reservoir. A large negative gravity anomaly and a few low-resitivity anomalies suggest areas generally favorable for the presence of steam zones, but these anomalies apparently do not directly indicate the known steam reservoir. Monitoring gravity and geodetic changes with time and mapping microearthquake activity are methods that show promise for determining reservoir size, possible recharge, production lifetime, and other characteristics of the known stream field. Seismic reflection data may contribute to the efficient exploitation of the field by identifying fracture zones that serve as conduits for the steam. (DJE-2005)

Thomas, Richard P.; Chapman, Rodger H.; Dykstra, Herman; Stockton, A.D.

1981-01-01T23:59:59.000Z

315

3D Magnetotelluric characterization of the COSO GeothermalField  

DOE Green Energy (OSTI)

Knowledge of the subsurface electrical resistivity/conductivity can contribute to a better understanding of complex hydrothermal systems, typified by Coso geothermal field, through mapping the geometry (bounds and controlling structures) over existing production. Three-dimensional magnetotelluric (MT) inversion is now an emerging technology for characterizing the resistivity structures of complex geothermal systems. The method appears to hold great promise, but histories exploiting truly 3D inversion that demonstrate the advantages that can be gained by acquiring and analyzing MT data in three dimensions are still few in number. This project will address said issue, by applying 3D MT forward modeling and inversion to a MT data set acquired over the Coso geothermal field. The goal of the project is to provide the capability to image large geothermal reservoirs in a single self-consistent model. Initial analysis of the Coso MT data has been carried out using 2D MT imaging technology to construct an initial 3D resistivity model from a series of 2D resistivity images obtained using the inline electric field measurements (Zxy impedance elements) along different measurement transects. This model will be subsequently refined through a 3D inversion process. The initial 3D resistivity model clearly shows the controlling geological structures possibly influencing well production at Coso. The field data however, also show clear three dimensionality below 1 Hz, demonstrating the limitations of 2D resistivity imaging. The 3D MT predicted data arising from this starting model show good correspondence in dominant components of the impedance tensor (Zxy and Zyx) above 1Hz. Below 1 Hz there is significant differences between the field data and the 2D model data.

Newman, Gregory A.; Hoversten, Michael; Gasperikova, Erika; Wannamaker, Philip E.

2005-01-01T23:59:59.000Z

316

CNCC Craig Campus Geothermal Program: 82-well closed loop GHP well field to  

Open Energy Info (EERE)

CNCC Craig Campus Geothermal Program: 82-well closed loop GHP well field to CNCC Craig Campus Geothermal Program: 82-well closed loop GHP well field to provide geothermal energy as a common utility for a new community college campus. Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title CNCC Craig Campus Geothermal Program: 82-well closed loop GHP well field to provide geothermal energy as a common utility for a new community college campus. Project Type / Topic 1 Recovery Act - Geothermal Technologies Program: Ground Source Heat Pumps Project Type / Topic 2 Topic Area 1: Technology Demonstration Projects Project Description This "geothermal central plant" concept will provide ground source loop energy as a utility to be shared by the academic and residential buildings on the soon-to-be-constructed campus.

317

Geothermal Resource Analysis and Structure of Basin and Range Systems,  

Open Energy Info (EERE)

Analysis and Structure of Basin and Range Systems, Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Authors David D. Blackwell, Kenneth W. Wisian, Maria C. Richards, Mark Leidig, Richard Smith and Jason McKenna Published U.S. Department of Energy, 2003 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Citation David D. Blackwell,Kenneth W. Wisian,Maria C. Richards,Mark Leidig,Richard Smith,Jason McKenna. 2003. Geothermal Resource Analysis and Structure of

318

Hydrogeologic model of the Ahuachapan geothermal field, El Salvador  

DOE Green Energy (OSTI)

A hydrogeological model of the Ahuachapan geothermal field has been developed. It considers the lithology and structural features of the area and discerns their impact on the movement of cold and hot fluids in the system. Three aquifers were identified, their zones of mixing and flow patterns were obtained on the basis of temperature and geochemical data from wells and surface manifestations. 12 refs., 9 figs.

Laky, C.; Lippmann, M.J.; Bodvarsson, G.S. (Lawrence Berkeley Lab., CA (USA)); Retana, M.; Cuellar, G. (Comision Ejecutiva Hidroelectrica del Rio Lempa (CEL) (El Salvador))

1989-01-01T23:59:59.000Z

319

Field Mapping At Brady Hot Springs Area (Wesnousky, Et Al., 2003...  

Open Energy Info (EERE)

S. John Caskey, John W. Bell (2003) Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Retrieved...

320

Locating an active fault zone in Coso geothermal field by analyzing seismic  

Open Energy Info (EERE)

Locating an active fault zone in Coso geothermal field by analyzing seismic Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Details Activities (1) Areas (1) Regions (0) Abstract: Active fault systems usually provide high-permeability channels for hydrothermal outflow in geothermal fields. Locating such fault systems is of a vital importance to plan geothermal production and injection drilling, since an active fault zone often acts as a fracture-extensive low-velocity wave guide to seismic waves. We have located an active fault zone in the Coso geothermal field, California, by identifying and analyzing

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321

Field Mapping At Coso Geothermal Area (1968-1971) | Open Energy Information  

Open Energy Info (EERE)

Field Mapping At Coso Geothermal Area (1968-1971) Field Mapping At Coso Geothermal Area (1968-1971) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (1968-1971) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 1968 - 1971 Usefulness useful DOE-funding Unknown Exploration Basis Fumarolic and hot springs activity Notes Snowmelt patterns has the greatest utility in locating areas of presently active thermal fluid leakage References Koenig, J.B.; Gawarecki, S.J.; Austin, C.F. (1 February 1972) Remote sensing survey of the Coso geothermal area, Inyo county, California. Technical publication 1968--1971 Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Coso_Geothermal_Area_(1968-1971)&oldid=473716"

322

The Geysers Geothermal Field Update1990/2010  

Science Conference Proceedings (OSTI)

In this report, we have presented data in four sections: (1) THE GEYSERS HISTORICAL UPDATE 1990-2010 - A historical update of the primary developments at The Geysers between 1990 and 2010 which uses as its start point Section IIA of the Monograph - 'Historical Setting and History of Development' that included articles by James Koenig and Susan Hodgson. (2) THE GEYSERS COMPREHENSIVE REFERENCE LIST 1990-2010 - In this section we present a rather complete list of technical articles and technical related to The Geysers that were issued during the period 1990-2010. The list was compiled from many sources including, but not limited to scientific journals and conference proceedings. While the list was prepared with care and considerable assistance from many geothermal colleagues, it is very possible that some papers could have been missed and we apologize to their authors in advance. The list was subdivided according to the following topics: (1) Field characterization; (2) Drilling; (3) Field development and management; (4) Induced seismicity; (5) Enhanced Geothermal Systems; (6) Power production and related issues; (7) Environment-related issues; and (8) Other topics. (3) GRC 2010 ANNUAL MEETING GEYSERS PAPERS - Included in this section are the papers presented at the GRC 2010 Annual Meeting that relate to The Geysers. (4) ADDITIONAL GEYSERS PAPERS 1990-2010 - Eighteen additional technical papers were included in this publication in order to give a broad background to the development at The Geysers after 1990. The articles issued during the 1990-2010 period were selected by colleagues considered knowledgeable in their areas of expertise. We forwarded the list of references given in Section 2 to them asking to send us with their selections with a preference, because of limited time, to focus on those papers that would not require lengthy copyright approval. We then chose the articles presented in this section with the purpose of providing the broadest possible view across all technical fields, as related to The Geysers steam-dominated geothermal system. The Geysers has seen many fundamental changes between 1990-2010 and yet the geothermal resource seems still to be robust to the extent that, long after its anticipated life span, we are seeing new geothermal projects being developed on the north and west peripheries of the field. It is hoped that this report provides a focused data source particularly for those just starting their geothermal careers, as well as those who have been involved in the interesting and challenging field of geothermal energy for many years. Despite many hurdles The Geysers has continued to generate electrical power for 50 years and its sustainability has exceeded many early researchers expectations. It also seems probable that, with the new projects described above, generation will continue for many years to come. The success of The Geysers is due to the technical skills and the financial acumen of many people, not only over the period covered by this report (1990-2010), but since the first kilowatt of power was generated in 1960. This Special Report celebrates those 50 years of geothermal development at The Geysers and attempts to document the activities that have brought success to the project so that a permanent record can be maintained. It is strongly hoped and believed that a publication similar to this one will be necessary in another 20 years to document further activities in the field.

Brophy, P.; Lippmann, M.; Dobson, P.F.; Poux, B.

2010-10-01T23:59:59.000Z

323

Modeling of Mountain-Valley Wind Fields in the Southern San Joaquin Valley, California  

Science Conference Proceedings (OSTI)

A dry three-dimensional mesoscale model was used to study the diurnal cycle of mountain-valley winds in the southern San Joaquin Valley during a summer day. A scheme for interpolating potential temperature was developed to provide hourly ...

Gary E. Moore; Christopher Daly; Mei-Kao Liu; Shi-Jian Huang

1987-09-01T23:59:59.000Z

324

Reservoir studies of the Seltjarnarnes geothermal field, Iceland  

DOE Green Energy (OSTI)

The Seltjarnarnes geothermal field in Iceland has been exploited for space heating for the last 16 years. A model of the field has been developed that integrates all available data. The model has been calibrated against the flow rate and pressure decline histories of the wells and the temperature and chemical changes of the produced fluids. This has allowed for the estimation of the permeability and porosity distribution of the system, and the volume of the hot reservoir. Predictions of future reservoir behavior using the model suggest small pressure and temperature changes, but a continuous increase in the salinity of the fluids produced.

Tulinius, H.; Spencer, A.L.; Bodvarsson, G.S.; Kristmannsdottir, H.; Thorsteinsson, T.; Sveinbjornsdottir, A.E.

1986-10-01T23:59:59.000Z

325

Reconnaissance for mercury over geothermal areas of the Imperial Valley, California. [Analysis of samples of soil gas and gas from drill holes  

DOE Green Energy (OSTI)

Nine samples of soil gas and gas from drill holes were collected over and near two geothermal anomalies in the Imperial Valley, California, to measure the possible presence of mercury. With the instrumentation used, the smallest quantity of mercury that could be detected was 2 nanograms. No mercury was detected in any sample.

Hinkle, M.E.; Vaughn, W.W.

1973-01-01T23:59:59.000Z

326

Evaluation of low-temperature geothermal potential in Utah and Goshen Valleys and adjacent areas, Utah. Part II. Water temperature and chemistry  

DOE Green Energy (OSTI)

Geothermal reconnaissance techniques have identified five areas in Utah County warranting further investigation for low-temperature geothermal resources. One area in northern Utah Valley is along Utah Lake fault zone and includes Saratoga Hot Springs. Water temperatures within this area range from 21 to 43/sup 0/C. Common ion analyses as well as B and Li concentrations indicate waters sampled in this area are anomalous when compared to other samples from the same aquifer. Two other areas in southern Utah Valley also coincide with the Utah Lake fault zone. Common ion analyses, trace element concentrations, and C1/HCO/sub 3/ ratios distinguish these areas from all other waters in this valley. Temperatures within these southern areas range from 21 to 32/sup 0/C. All three thermal areas are possibly the result of deep circulation of meteoric water being warmed and subsequently migrating upward within the Utah Lake fault zone. The Castilla Hot Springs area has been expanded by this study to include a spring located 3 mi further up Spanish Fork Canyon near the Thistle earthflow. A temperature of 50/sup 0/C was recorded for this spring and chemistry is similar to Castilla. In Goshen Valley, the fifth geothermal area identified, measured temperatures range from 20 to 27/sup 0/C for some wells and springs. Chemical analyses, however, do not discern the location of low-temperature geothermal reservoirs. 18 refs., 7 figs., 5 tabs.

Klauk, R.H.; Davis, D.A.

1984-12-01T23:59:59.000Z

327

Land subsidence in the Cerro Prieto Geothermal Field, 1 Baja California, Mexico, from 1994 to 2005. An integrated analysis of DInSAR, levelingand geological data.  

Science Conference Proceedings (OSTI)

Cerro Prieto is the oldest and largest Mexican geothermal field in operation and has been producing electricity since 1973. The large amount of geothermal fluids extracted to supply steam to the power plants has resulted in considerable deformation in and around the field. The deformation includes land subsidence and related ground fissuring and faulting. These phenomena have produced severe damages to infrastructure such as roads, irrigation canals and other facilities. In this paper, the technique of Differential Synthetic Aperture Radar Interferometry (DInSAR) is applied using C-band ENVISAR ASAR data acquired between 2003 and 2006 to determine the extent and amount of land subsidence in the Mexicali Valley near Cerro Prieto Geothermal Field. The DInSAR results were compared with published data from precise leveling surveys (1994- 1997 and 1997-2006) and detailed geological information in order to improve the understanding of temporal and spatial distributions of anthropogenic subsidence in the Mexicali Valley. The leveling and DInSAR data were modeled to characterize the observed deformation in terms of fluid extraction. The results confirm that the tectonic faults control the spatial extent of the observed subsidence. These faults likely act as groundwater flow barriers for aquifers and reservoirs. The shape of the subsiding area coincides with the Cerro Prieto pull-apart basin. In addition, the spatial pattern of the subsidence as well as changes in rate are highly correlated with the development of the Cerro Prieto Geothermal Field.

Sarychikhina, O; Glowacka, E; Mellors, R; Vidal, F S

2011-03-03T23:59:59.000Z

328

Gas geochemistry of the Geysers geothermal field  

DOE Green Energy (OSTI)

Increases in gas concentrations in Central and Southeast Geysers steam are related to the decreases in pressure caused by heavy exploitation in the 1980s. When reservoir pressures in the central parts of the field decreased, high-gas steam from undrilled reservoir margins (and possibly from underlying high-temperature zones) flowed into exploited central areas. The Northwest Geysers reservoir probably lacks high-gas marginal steam and a decline in pressure may not cause a significant increase of gas concentrations in produced steam.

Truesdell, A.H.

1993-04-01T23:59:59.000Z

329

Enhanced Geothermal System Development of the AmeriCulture Leasehold in the Animas Valley  

DOE Green Energy (OSTI)

Working under the grant with AmeriCulture, Inc., and its team of geothermal experts, assembled a plan to apply enhanced geothermal systems (EGS) techniques to increase both the temperature and flow rate of the geothermal waters on its leasehold. AmeriCulture operates a commercial aquaculture facility that will benefit from the larger quantities of thermal energy and low cost electric power that EGS technology can provide. The project brought together a team of specialists that, as a group, provided the full range of expertise required to successfully develop and implement the project.

Duchane, David V; Seawright, Gary L; Sewright, Damon E; Brown, Don; Witcher, James c.; Nichols, Kenneth E.

2001-03-02T23:59:59.000Z

330

Feasibility study report for the Imperial Valley Ethanol Refinery: a 14. 9-million-gallon-per-year ethanol synfuel refinery utilizing geothermal energy  

DOE Green Energy (OSTI)

The construction and operation of a 14,980,000 gallon per year fuel ethanol from grain refinery in the Imperial Valley of California is proposed. The Imperial Valley Ethanol Refinery (refinery) will use hot geothermal fluid from geothermal resources at the East Mesa area as the source of process energy. In order to evaluate the economic viability of the proposed Project, exhaustive engineering, cost analysis, and financial studies have been undertaken. This report presents the results of feasibility studies undertaken in geothermal resource, engineering, marketing financing, management, environment, and permits and approvals. The conclusion of these studies is that the Project is economically viable. US Alcohol Fuels is proceeding with its plans to construct and operate the Refinery.

Not Available

1981-03-01T23:59:59.000Z

331

The Origin of High-Enthalpy Geothermal of Non-Volcanic Environment---As a Case Study of Yangbajing Geothermal Field at Qinghai-Tibet Plateau  

Science Conference Proceedings (OSTI)

Among global high-enthalpy geothermal resources, geothermal fields within Tibet are located in non-volcanic environment only. Results of the PTt(pressure-temperature-time) trajectory calculation of the Plateau uplifting gave a comparatively satisfactory ...

Jin Shenghai; Yao Zujin; Yin Miying

2009-10-01T23:59:59.000Z

332

A database for The Geysers geothermal field  

DOE Green Energy (OSTI)

In Fiscal Year 1985-1986 the Earth Sciences Division of Lawrence Berkeley Laboratory (LBL) began a multi-year project for SLC to organize and analyze the field data from The Geysers. In the first year, most of the work concentrated on the development of a comprehensive database for The Geysers, and conventional reservoir engineering analysis of the data. Essentially, all non-proprietary data for wells at The Geysers have been incorporated into the database, as well as proprietary data from wells located on State leases. In following years, a more detailed analysis of The Geysers data has been carried out. This report is a summary of the non- proprietary work performed in FY 1985--1986. It describes various aspects of the database and also includes: review sections on Field Development, Geology, Geophysics, Geochemistry and Reservoir Engineering. It should be emphasized that these background chapters were written in 1986, and therefore only summarize the information available at that time. The appendices contain individual plots of wellhead pressures, degree of superheat, steam flow rates, cumulative mass flows, injection rates and cumulative injection through 1988 for approximately 250 wells. All of the data contained in this report are non-proprietary, from State and non-State leases. The production/injection and heat flow data from the wells were obtained from the California State Division of Oil and gas (DOG) (courtesy of Dick Thomas). Most of the other data were obtained from SLC files in Sacramento (courtesy of Charles Priddy), or DOG files in Santa Rosa (courtesy of Ken Stelling). 159 refs., 23 figs., 3 tabs.

Bodvarsson, G.S.; Cox, B.L.; Fuller, P.; Ripperda, M.; Tulinius, H.; Witherspoon, P.A.; Goldstein, N.; Flexser, S.; Pruess, K. (Lawrence Berkeley Lab., CA (USA)); Truesdell, A. (Geological Survey, Menlo Park, CA (USA))

1989-09-01T23:59:59.000Z

333

Field testing advanced geothermal turbodrill (AGT). Phase 1 final report  

DOE Green Energy (OSTI)

Maurer Engineering developed special high-temperature geothermal turbodrills for LANL in the 1970s to overcome motor temperature limitations. These turbodrills were used to drill the directional portions of LANL`s Hot Dry Rock Geothermal Wells at Fenton Hill, New Mexico. The Hot Dry Rock concept is to drill parallel inclined wells (35-degree inclination), hydraulically fracture between these wells, and then circulate cold water down one well and through the fractures and produce hot water out of the second well. At the time LANL drilled the Fenton Hill wells, the LANL turbodrill was the only motor in the world that would drill at the high temperatures encountered in these wells. It was difficult to operate the turbodrills continuously at low speed due to the low torque output of the LANL turbodrills. The turbodrills would stall frequently and could only be restarted by lifting the bit off bottom. This allowed the bit to rotate at very high speeds, and as a result, there was excessive wear in the bearings and on the gauge of insert roller bits due to these high rotary speeds. In 1998, Maurer Engineering developed an Advanced Geothermal Turbodrill (AGT) for the National Advanced Drilling and Excavation Technology (NADET) at MIT by adding a planetary speed reducer to the LANL turbodrill to increase its torque and reduce its rotary speed. Drilling tests were conducted with the AGT using 12 1/2-inch insert roller bits in Texas Pink Granite. The drilling tests were very successful, with the AGT drilling 94 ft/hr in Texas Pink Granite compared to 45 ft/hr with the LANL turbodrill and 42 ft/hr with a rotary drill. Field tests are currently being planned in Mexico and in geothermal wells in California to demonstrate the ability of the AGT to increase drilling rates and reduce drilling costs.

Maurer, W.C.; Cohen, J.H.

1999-06-01T23:59:59.000Z

334

Reconnaissance geothermal exploration at Raft River, Idaho from thermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon ┬╗ Reconnaissance geothermal exploration at Raft River, Idaho from thermal infrared scanning Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Reconnaissance geothermal exploration at Raft River, Idaho from thermal infrared scanning Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; INFRARED SURVEYS; IDAHO; GEOTHERMAL EXPLORATION; RAFT RIVER VALLEY; TEMPERATURE DISTRIBUTION; EXPLORATION; GEOPHYSICAL SURVEYS; NORTH AMERICA; PACIFIC NORTHWEST REGION; USA Author(s): Watson, K. Published: Geophysics, 4/1/1976

335

Three-dimensional anatomy of a geothermal field, Coso, Southeast-Central  

Open Energy Info (EERE)

anatomy of a geothermal field, Coso, Southeast-Central anatomy of a geothermal field, Coso, Southeast-Central California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Three-dimensional anatomy of a geothermal field, Coso, Southeast-Central California Details Activities (1) Areas (1) Regions (0) Abstract: This paper reviews geophysical and seismological imaging in the Coso geothermal field, located in southeast-central California. The Coso geothermal production area covers approximately 6X10 km 2 . Although regional seismicity is addressed, as it sheds light on the magma, or heat, sources in the field, the primary focus of this paper is on the main production area. Three-dimensional inversions for P- and S- wave velocity variations, distribution of attenuation, and anisotropy are presented side-by-side so that anomalies can be compared spatially in a direct

336

A Soil Gas Survey Over Rotorua Geothermal Field, Rotorua, New Zealand |  

Open Energy Info (EERE)

Soil Gas Survey Over Rotorua Geothermal Field, Rotorua, New Zealand Soil Gas Survey Over Rotorua Geothermal Field, Rotorua, New Zealand Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Soil Gas Survey Over Rotorua Geothermal Field, Rotorua, New Zealand Details Activities (0) Areas (0) Regions (0) Abstract: Soil gases have been used as an exploration tool for minerals, oil and gas, and geothermal energy, through the detection of anomalous gas levels. This paper describes a soil gas survey conducted over a large part of the Rotorua geothermal field to supplement the sparse gas data from drillhole samples and to determine gas distribution patterns over the field. Data collected from a reference hole were used to observe the effect changing meteorological conditions had on soil gas levels. The results were

337

Environmental overview of geothermal development: the Mono-Long Valley KGRA  

DOE Green Energy (OSTI)

Major issues and concerns relating to geothermal development were identified and assessed in seven broad areas: (1) air quality, (2) archaeology and cultural resources, (3) geology, (4) natural ecosystems, (5) noise, (6) socioeconomics, and (7) water quality. Existing data for each of these areas was identified and evaluated to determine if the data can be used to help resolve major issues. Finally, specific areas where additional data are needed to ensure that geothermal development is environmentally acceptable were recommended.

Strojan, C.L.; Romney, E.M. (eds.) [eds.

1979-01-01T23:59:59.000Z

338

An Integrated Model For The Geothermal Field Of Milos From Geophysical...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon An Integrated Model For The Geothermal Field Of Milos From Geophysical Experiments Jump to:...

339

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field...  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ...

340

Geothermal Prospecting using Hyperspectral Imaging and Field Observations, Dixie Meadows, NV  

DOE Green Energy (OSTI)

In an ongoing project to relate surface hydrothermal alteration to structurally controlled geothermal aquifers, we mapped a 16 km swath of the eastern front of the Stillwater Range using Hyperspectral fault and mineral mapping techniques. The Dixie Valley Fault system produces a large fractured aquifer heating Pleistocene aged groundwater to a temperature of 285 C at 5-6 km. Periodically over the last several thousand years, seismic events have pushed these heated fluids to the surface, leaving a rich history of hydrothermal alteration in the Stillwater Mountains. At Dixie Hot Springs, the potentiometric surface of the aquifer intersects the surface, and 75 C waters flow into the valley. We find a high concentration of alunite, kaolinite, and dickite on the exposed fault surface directly adjacent to a series of active fumaroles on the range front fault. This assemblage of minerals implies interaction with water in excess of 200 C. Field spectra support the location of the high temperature mineralization. Fault mapping using a Digital Elevation Model in combination with mineral lineation and field studies shows that complex fault interactions in this region are improving permeability in the region leading to unconfined fluid flow to the surface. Seismic studies conducted 10 km to the south of Dixie Meadows show that the range front fault dips 25-30 to the southeast (Abbott et al., 2001). At Dixie Meadows, the fault dips 35 to the southeast, demonstrating that this region is part of the low angle normal fault system that produced the Dixie Valley Earthquake in 1954 (M=6.8). We conclude that this unusually low angle faulting may have been accommodated by the presence of heated fluids, increasing pore pressure within the fault zone. We also find that younger synthetic faulting is occurring at more typical high angles. In an effort to present these findings visually, we created a cross-section, illustrating our interpretation of the subsurface structure and the hypothesized locations of increased permeability. The success of these methods at Dixie Meadows will greatly improve our understanding of other Basin and Range geothermal systems.

Kennedy-Bowdoin, T; Silver, E; Martini, B; Pickles, W

2004-04-26T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Field procedures manual: INYO-4, Long Valley Caldera, California  

DOE Green Energy (OSTI)

This Field Procedures Manual is the comprehensive operations guide to be used to curate samples obtained from the INYO-4 site in the Long Valley Caldera, California. This site is a diamond drilling project in small-diameter holes that will produce continuous core. Fluid samples will also be of primary importance at this site. Detailed core and fluid handling procedures are therefore the major focus of this manual. The manual provides a comprehensive operations guide for the well-site geoscientists working at the Department of Energy/Office of Basic Energy Sciences (DOE/OBES) Continental Scientific Drilling Program (CSDP)/Thermal Regimes drill sites. These procedures modify and improve those in previous DOE/OBES field manuals. 1 ref.; 6 figs.

Goff, S.

1989-01-01T23:59:59.000Z

342

Category:Geothermal Development Phases | Open Energy Information  

Open Energy Info (EERE)

of 6 total. G GeothermalExploration GeothermalLand Use GeothermalLeasing GeothermalPower Plant GeothermalTransmission GeothermalWell Field Retrieved from "http:...

343

The Ngatamariki Geothermal Field, NZ: Surface Manifestations - Past and Present  

DOE Green Energy (OSTI)

The Ngatamariki geothermal field, located 7 km south of Orakeikorako, discharges dilute chloride-bicarbonate waters of almost neutral pH from springs mostly on the margins of the field. Rhyolite tuffs in the northwestern part of the field are weakly silicified, probably due to their having reacted with heated groundwaters. Sinter deposits are common at Ngatamariki but are mostly relict from former activity. In 1994, the natural heat loss from the field was 30 {+-} 5 MW{sub thermal}. There has been a shift of thermal activity southward over the past 60 years; the changes were recognized by comparing air photographs taken in 1941 and 1991. In 1948, a hydrothermal eruption deposited breccia around its crater, which is now occupied by a pool at 52.5 C. Another pool at 88 C, first noticed in 1993, deposits a mixture of silica and calcite.

Brotheridge, J.M.A.; Browne, P.R.L.; Hochstein, M.P.

1995-01-01T23:59:59.000Z

344

A Survey Of Seismic Activity Near Wairakei Geothermal Field, New Zealand |  

Open Energy Info (EERE)

Of Seismic Activity Near Wairakei Geothermal Field, New Zealand Of Seismic Activity Near Wairakei Geothermal Field, New Zealand Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Survey Of Seismic Activity Near Wairakei Geothermal Field, New Zealand Details Activities (0) Areas (0) Regions (0) Abstract: A five-week survey showed that seismic activity within 20 km of Wairakei Geothermal Field took place mainly at shallow depths (< 2 km), in or close to the Taupo Fault Belt, and occurred in swarms. Twenty-eight earthquakes, with magnitudes (M) between -1.3 and +2.8, were located; 43 other earthquakes, with M < 0.2, were recorded but could not be located. The distribution of located earthquakes did not correlate with known areas of surface geothermal activity. No located earthquake occurred beneath the

345

Stress and Fluid-Flow Interaction for the Coso Geothermal Field Derived  

Open Energy Info (EERE)

Stress and Fluid-Flow Interaction for the Coso Geothermal Field Derived Stress and Fluid-Flow Interaction for the Coso Geothermal Field Derived from 3D Numerical Models Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Stress and Fluid-Flow Interaction for the Coso Geothermal Field Derived from 3D Numerical Models Details Activities (1) Areas (1) Regions (0) Abstract: The efficiency of geothermal energy production at the Coso Geothermal Field in eastern California is reliant on the knowledge of fluid flow directions associated with fracture networks. We use finite element analysis to establish the 3D state of stress within the tectonic setting of the Coso Range. The mean and differential stress distributions are used to infer fluid flow vectors and second order fracture likelihood and orientation. The results show that the Coso Range and adjacent areas are

346

A U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand  

Open Energy Info (EERE)

U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand Details Activities (0) Areas (0) Regions (0) Abstract: We report here the first U-Th disequilibrium age for a hydrothermal mineral from an active geothermal system in New Zealand. Vein calcite recovered from a depth of 389 m in Well Thm-1 at the Tauhara geothermal field has an age of 99┬▒44 ka BP. This age was determined using a leachate-leachate isochron technique on four silicate containing sub-samples of calcite from a single vein. Although the error on this isochron age is considerable, it is significantly younger than the earlier

347

P wave anisotropy, stress, and crack distribution at Coso geothermal field,  

Open Energy Info (EERE)

wave anisotropy, stress, and crack distribution at Coso geothermal field, wave anisotropy, stress, and crack distribution at Coso geothermal field, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: P wave anisotropy, stress, and crack distribution at Coso geothermal field, California Details Activities (1) Areas (1) Regions (0) Abstract: A new inversion method for P wave anisotropy (Wu and Lees, 1999a) has been applied to high-precision, microseismic traveltime data collected at Coso geothermal region, California. Direction-dependent P wave velocity and thus its perturbation, are represented by a symmetric positive definite matrix A instead of a scalar. The resulting anisotropy distribution is used to estimate variations in crack density, stress distribution and permeability within the producing geothermal field. A circular dome-like

348

A Summary of Modeling Studies of the Krafla Geothermal Field, Iceland |  

Open Energy Info (EERE)

A Summary of Modeling Studies of the Krafla Geothermal Field, Iceland A Summary of Modeling Studies of the Krafla Geothermal Field, Iceland Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Summary of Modeling Studies of the Krafla Geothermal Field, Iceland Abstract A comprehensive modeling study of the Krafla geothermal field in Iceland has been carried out. The study consists of four tasks: the analysis of well test data, modeling of the natural state of the field, the determination of the generating capability of the field, and modeling of well performance. The results of all four tasks are consistent with field observations. Authors Gudmundur S. Bodvarsson and Karsten Pruess Published Journal Geothermal Resources Council Transactions, 1983 DOI Not Provided Check for DOI availability: http://crossref.org

349

Fracture patterns in graywacke outcrops at The Geysers geothermal field  

DOE Green Energy (OSTI)

The Geysers geothermal field covers an area of more than 35,000 acres and represents one of the most significant steam fields in the world. The heterogeneous nature of the reservoir, its fracture network and non-sedimentary rock distinguish it from ordinary sandstone reservoirs in terms of reservoir definition and evaluation (Stockton et al. 1984). Analysis of cuttings, record of steam entries, temperature and pressure surveys and spinner logs have contributed to an understanding of the subsurface geology and rock characteristics of the Geysers. Few conventional electrical log data are available for the main body of the reservoir. It is generally believed that while the fractures are the main conducts for fluid transport through the reservoirs, tight rocks between the major fractures contain the bulk of the fluid reserves. No independent measurement of liquid and vapor saturation can be made from the existing downhole tools. Pressure depletion in The Geysers geothermal field has become a major concern to the operators and utility companies in recent years. Plans for further development activities and future field management are contingent upon accurate computer modeling and definition of the field. The primary issues in reliable characterization of The Geysers field are the role of the rock matrix in holding liquid reserves and providing pressure support, the nature of fracture network, extent of liquid saturation in the reservoirs and injection pattern strategies to maximize heat recovery. Current modeling of The Geysers field is done through the use of general purpose geothermal reservoir simulators. Approaches employed include treating the reservoir as a single porosity equivalent or a dual porosity system. These simulators include formulation to represent transport of heat, steam and water. Heterogeneities are represented by spatial variations in formation or fracture permeability-thickness product, porosity or fluid saturations. Conceptual models based on dual porosity representations have been shown to duplicate the history. Prediction of future performance is, however, not reliable because of uncertainties in assumptions of the initial state of the reservoir, Specifically, several different initial state conditions have led to a fairly good match of the historical data. Selection of the exact initial conditions is a major dilemma. In dual porosity models, the complex nature of fracture network is formulated by a systematic, well-organized set of orthogonal fractures. Also, the exact nature of matrix-fracture interaction, and the role of adsorption and capillarity in pressure support are not well-defined.

Sammis, Charles G.; Lin Ji An; Ershaghi, I.

1991-01-01T23:59:59.000Z

350

40AR/39AR THERMAL HISTORY OF THE COSO GEOTHERMAL FIELD | Open Energy  

Open Energy Info (EERE)

AR/39AR THERMAL HISTORY OF THE COSO GEOTHERMAL FIELD AR/39AR THERMAL HISTORY OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: 40AR/39AR THERMAL HISTORY OF THE COSO GEOTHERMAL FIELD Details Activities (1) Areas (1) Regions (0) Abstract: The age of the geothermal system and the granitic host rock at Coso geothermal system in California is poorly known. This is mainly due to a paucity of vein-type minerals (e.g. adularia, sericite) that can be directly dated. A downhole 40Ar/39Ar thermochronology study of granitic host-rock Kfeldspar is presently being undertaken at the New Mexico Geochronology Research Laboratory at New Mexico Tech. The technique couples the measurement of argon loss from K-feldspar and knowledge of the diffusion parameters of transport in K-feldspar to estimate the longevity

351

Field Mapping At Coso Geothermal Area (1977-1978) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (1977-1978) Coso Geothermal Area (1977-1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (1977-1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 1977 - 1978 Usefulness not indicated DOE-funding Unknown Notes Hydrogeologic investigation of Coso hot springs was conducted by field examination of geologic rock units and springs and other features of hydrologic significance and sampling of waters for chemical analysis; determination of the local Coso Hot Springs and regional groundwater hydrology, including consideration of recharge, discharge, movement, and water quality; determination of the possible impact of large-scale geothermal development on Coso Hot Springs.

352

Hot Dry Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico |  

Open Energy Info (EERE)

Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Hot Dry Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico Details Activities (2) Areas (1) Regions (0) Abstract: Large, young calderas possess immense geothermal potential due to the size of shallow magma bodies that underlie them. Through the example of the Valles and Toledo calderas, New Mexico, and older, more deeply eroded and exposed calderas, it is possible to reconstruct a general view of geothermal environments associated with such magmatic systems. Although a zone of anomalous heat flow extends well beyond caldera margins, high- to moderate-temperature hydrothermal systems appear to be restricted to zones

353

A Test Of The Transiel Method On The Travale Geothermal Field | Open Energy  

Open Energy Info (EERE)

Of The Transiel Method On The Travale Geothermal Field Of The Transiel Method On The Travale Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Test Of The Transiel Method On The Travale Geothermal Field Details Activities (0) Areas (0) Regions (0) Abstract: An original electromagnetic method has been applied to geothermal prospecting on the Travale test site. The results show good correlations between observed polarization anomalies and productive zones. It is believed that these anomalies are related to reduction phenomena that occurred in the overburden (such as pyrite formation) caused by thermochemical exchanges between the reservoir and the overburden above those zones where the reservoir permeability is highest. Author(s): A. Duprat, M. Roudot, S. Spitz Published: Geothermics, 1985

354

Niland development project geothermal loan guaranty: 49-MW (net) power plant and geothermal well field development, Imperial County, California: Environmental assessment  

DOE Green Energy (OSTI)

The proposed federal action addressed by this environmental assessment is the authorization of disbursements under a loan guaranteed by the US Department of Energy for the Niland Geothermal Energy Program. The disbursements will partially finance the development of a geothermal well field in the Imperial Valley of California to supply a 25-MW(e) (net) power plant. Phase I of the project is the production of 25 MW(e) (net) of power; the full rate of 49 MW (net) would be achieved during Phase II. The project is located on approximately 1600 acres (648 ha) near the city of Niland in Imperial County, California. Well field development includes the initial drilling of 8 production wells for Phase I, 8 production wells for Phase II, and the possible need for as many as 16 replacement wells over the anticipated 30-year life of the facility. Activities associated with the power plant in addition to operation are excavation and construction of the facility and associated systems (such as cooling towers). Significant environmental impacts, as defined in Council on Environmental Quality regulation 40 CFR Part 1508.27, are not expected to occur as a result of this project. Minor impacts could include the following: local degradation of ambient air quality due to particulate and/or hydrogen sulfide emissions, temporarily increased ambient noise levels due to drilling and construction activities, and increased traffic. Impacts could be significant in the event of a major spill of geothermal fluid, which could contaminate groundwater and surface waters and alter or eliminate nearby habitat. Careful land use planning and engineering design, implementation of mitigation measures for pollution control, and design and implementation of an environmental monitoring program that can provide an early indication of potential problems should ensure that impacts, except for certain accidents, will be minimized.

Not Available

1984-10-01T23:59:59.000Z

355

Performance characteristics of the Lysholm engine as tested for geothermal power applications in the Imperial Valley  

Science Conference Proceedings (OSTI)

This paper contains a description of the performance tests of a Lysholm engine completed at the Lawrence Livermore National Laboratory at the University of California. The Lysholm engine is a rotary displacement engine which can accept a low quality (vapor fraction) two-phase mixture. Generally, the well-head condition of geothermal fluids is a mixture of liquid and vapor, with quality up to 40 percent, although for most liquid dominated geothermal resources the vapor fraction is considerably less than 40 percent. 13 refs.

Steidel, R.F. Jr.; Weiss, H.; Flower, J.E.

1982-01-01T23:59:59.000Z

356

The Geysers Geothermal Field Update1990/2010  

E-Print Network (OSTI)

B. ,á2010. áGeysersápoweráplantáH 2 Sáabatementá update. áoperationsáatáTheáGeysersápoweráplant,áGeothermaláResourcesáTableá1:ááGeothermaláPoweráPlantsáOperatingáatáTheáGeysersá(

Brophy, P.

2012-01-01T23:59:59.000Z

357

Geology and geothermal waters of Lightning Dock region, Animas Valley and Pyramid Mountains, Hidalgo County, New Mexico  

DOE Green Energy (OSTI)

This circular covers the geology of the Pyramid Peak, Swallow Fork Peak, Table Top Mountain, and South Pyramid Peak 7-1/2-min quadrangles, which include the Lightning Dock KGRA. Hot wells (70 to 115.5/sup 0/C) seem to be structurally controlled by intersections of the ring-fracture zone of an Oligocene ash-flow tuff cauldron (Muir cauldron), a Miocene-to-Holocene north-trending basin-and-range fault (Animas Valley fault), and a northeast-trending lineament that appears to control anomalously heated underground waters and Pliocene-Pleistocene basalt cones in the San Bernardino, San Simon, and Animas Valleys. The Muir cauldron, approximately 20 km in diameter, collapsed in two stages, each associated with the eruption of a rhyolite ash-flow-tuff sheet and of ring-fracture domes. Most of the hydrothermal alteration of the Lightning Dock KGRA is related to the first stage of eruption and collapse, not to the modern geothermal system. Contrary to previous reports, no silicic volcanic rocks younger than basin-and-range faulting are known; unconformities beneath rhyolite ring-fracture domes are caused by Oligocene caldera collapse, not by basin-and-range faulting. The Animas Valley is the site of widespread post-20 My travertine deposits and near-surface veins of calcite, fluorite, and/or psilomelane, controlled by north- or northwest-trending basin-and-range faults. The fluoride-bearing waters of the Lightning Dock KGRA may be a late stage of this hydrothermal activity. Distribution of Pliocene-Pleistocene basalt suggests that deep-seated basalt near the solids may be the ultimate heat source.

Elston, W.E.; Deal, E.G.; Logsdon, M.J.

1983-01-01T23:59:59.000Z

358

Development of a geothermal resource in a fractured volcanic formation: Case study of the Sumikawa Geothermal Field, Japan  

DOE Green Energy (OSTI)

The principal purpose of this case study of the Sumikawa Geothermal Field is to document and to evaluate the use of drilling logs, surface and downhole geophysical measurements, chemical analyses, and pressure transient data for the assessment of a high temperature volcanic geothermal field. The work accomplished during Year 1 of this ongoing program is described in the present report. A brief overview of the Sumikawa Geothermal Field is given. The drilling information and downhole pressure, temperature, and spinner surveys are used to determine feedzone locations, pressures and temperatures. Available injection and production data from both slim holes and large-diameter wells are analyzed to evaluate injectivity/productivity indices and to investigate the variation of discharge rate with borehole diameter. Finally, plans for future work are outlined.

Garg, S.K.; Pritchett, J.W.; Stevens, J.L.; Luu, L. [Maxwell Federal Div., Inc., San Diego, CA (United States); Combs, J. [Geo-Hills Associates, Los Altos, CA (United States)

1996-11-01T23:59:59.000Z

359

Low- to moderate-temperature geothermal resource assessment for Nevada: area specific studies, Pumpernickel Valley, Carlin and Moana. Final report June 1, 1981-July 31, 1982  

DOE Green Energy (OSTI)

Geological, geophysical and geochemical surveys were used in conjunction with temperature gradient hole drilling to assess the geothermal resources in Pumpernickel Valley and Carlin, Nevada. This program is based on a statewide assessment of geothermal resources that was completed in 1979. The exploration techniques are based on previous federally-funded assessment programs that were completed in six other areas in Nevada and include: literature search and compilation of existing data, geologic reconnaissance, chemical sampling of thermal and non-thermal fluids, interpretation of satellite imagery, interpretation of low-sun angle aerial photographs, two-meter depth temperature probe survey, gravity survey, seismic survey, soil-mercury survey, and temperature gradient drilling.

Trexler, D.T.; Flynn, T.; Koenig, B.A.; Bell, E.J.; Ghusn, G. Jr.

1982-01-01T23:59:59.000Z

360

Development history of the Tiwi geothermal field, Philippines  

SciTech Connect

Commercial production of electricity from the Tiwi geothermal system began in 1979. In 1982, Tiwi became the world`s first water-dominated system to produce more than 160 MWe. Today the field supplies about 11% of Luzon`s electricity. Initially, the reservoir was single-phase liquid with a small, shallow steam zone on the east side. Temperature reversals in the first wells showed the east to be an outflow zone. As production began, reservoir pressure declined, two-phase conditions developed, and groundwater entered the reservoir from the east. As many productions wells cooled, brine production increased and generation decreased from about 280 MWe in 1983 to about 190 MWe in 1986. Improvements to surface facilities and new wells drilled farther west raised generation to about 280 MWe by mid-1993. Separated brine was first injected into the reservoir, but this lowered steam production; injection is now outside the field.

Gambill, D.T.; Beraquit, D.B. [Philippine Geothermal, Inc., Makati (Philippines)] [Philippine Geothermal, Inc., Makati (Philippines)

1993-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Modeling of geothermal reservoirs: Fundamental processes, computer simulation, and field applications  

DOE Green Energy (OSTI)

This article attempts to critically evaluate the present state of the art of geothermal reservoir simulation. Methodological aspects of geothermal reservoir modeling are briefly reviewed, with special emphasis on flow in fractured media. Then we examine applications of numerical simulation to studies of reservoir dynamics, well test design and analysis, and modeling of specific fields. Tangible impacts of reservoir simulation technology on geothermal energy development are pointed out. We conclude with considerations on possible future developments in the mathematical modeling of geothermal fields. 45 refs., 4 figs., 2 tabs.

Pruess, K.

1988-09-01T23:59:59.000Z

362

STRESS AND FAULTING IN THE COSO GEOTHERMAL FIELD: UPDATE AND RECENT RESULTS  

Open Energy Info (EERE)

STRESS AND FAULTING IN THE COSO GEOTHERMAL FIELD: UPDATE AND RECENT RESULTS STRESS AND FAULTING IN THE COSO GEOTHERMAL FIELD: UPDATE AND RECENT RESULTS FROM THE EAST FLANK AND COSO WASH Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: STRESS AND FAULTING IN THE COSO GEOTHERMAL FIELD: UPDATE AND RECENT RESULTS FROM THE EAST FLANK AND COSO WASH Details Activities (1) Areas (1) Regions (0) Abstract: We integrate new geologic mapping and measurements of stress orientations and magnitudes from wells 34-9RD2 and 58A-10 with existing data sets to refine a geomechanical model for the Coso geothermal field. Vertically averaged stress orientations across the field are fairly uniform and are consistent with focal mechanism inversions of earthquake clusters for stress and incremental strain. Active faults trending NNW-SSE to

363

A Model For The Sulphur Springs Geothermal Field St Lucia | Open Energy  

Open Energy Info (EERE)

Model For The Sulphur Springs Geothermal Field St Lucia Model For The Sulphur Springs Geothermal Field St Lucia Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Model For The Sulphur Springs Geothermal Field St Lucia Details Activities (0) Areas (0) Regions (0) Abstract: A model to explain the behaviour of the Sulphur Springs geothermal field has been derived from downhole temperature records in the exploration boreholes. The model incorporates a main reservoir at 1 - 1.5 km depth, intersected by steeply inclined fissures which carry steam and gas to the well bores, and to the natural fumaroles. A substantial decline in the gas content of the steam could have serious consequences where the fissures are utilised as conduits between the boreholes and the deep reservoir. Further development of the field should concentrate on the

364

Exploration and development of the Cerro Prieto geothermal field  

DOE Green Energy (OSTI)

A multidisciplinary effort to locate, delineate, and characterize the geothermal system at Cerro Prieto, Baja California, Mexico, began about 25 years ago. It led to the identification of an important high-temperature, liquid-dominated geothermal system which went into production in 1973. Initially, the effort was undertaken principally by the Mexican electric power agency, the Comision Federal de Electricidad (CFE). Starting in 1977 a group of US organizations sponsored by the US Department of Energy, joined CFE in this endeavor. An evaluation of the different studies carried out at Cerro Prieto has shown that: (1) surface electrical resistivity and seismic reflection surveys are useful in defining targets for exploratory drilling; (2) the mineralogical studies of cores and cuttings and the analysis of well logs are important in designing the completion of wells, identifying geological controls on fluid movement, determining thermal effects and inferring the thermal history of the field; (3) geochemical surveys help to define zones of recharge and paths of fluid migration; and (4) reservoir engineering studies are necessary in establishing the characteristics of the reservoir and in predicting its response to fluid production.

Lippmann, M.J.; Goldstein, N.E.; Halfman, S.E.; Witherspoon, P.A.

1983-07-01T23:59:59.000Z

365

Geothermal injection treatment: process chemistry, field experiences, and design options  

DOE Green Energy (OSTI)

The successful development of geothermal reservoirs to generate electric power will require the injection disposal of approximately 700,000 gal/h (2.6 x 10/sup 6/ 1/h) of heat-depleted brine for every 50,000 kW of generating capacity. To maintain injectability, the spent brine must be compatible with the receiving formation. The factors that influence this brine/formation compatibility and tests to quantify them are discussed in this report. Some form of treatment will be necessary prior to injection for most situations; the process chemistry involved to avoid and/or accelerate the formation of precipitate particles is also discussed. The treatment processes, either avoidance or controlled precipitation approaches, are described in terms of their principles and demonstrated applications in the geothermal field and, when such experience is limited, in other industrial use. Monitoring techniques for tracking particulate growth, the effect of process parameters on corrosion and well injectability are presented. Examples of brine injection, preinjection treatment, and recovery from injectivity loss are examined and related to the aspects listed above.

Kindle, C.H.; Mercer, B.W.; Elmore, R.P.; Blair, S.C.; Myers, D.A.

1984-09-01T23:59:59.000Z

366

South Belridge fields, Borderland basin, U. S. , San Joaquin Valley  

SciTech Connect

South Belridge is a giant field in the west San Joaquin Valley, Kern County. Cumulative field production is approximately 700 MMBO and 220 BCFG, with remaining recoverable reserves of approximately 500 MMBO. The daily production is nearly 180 MBO from over 6100 active wells. The focus of current field development and production is the shallow Tulare reservoir. Additional probable diatomite reserves have been conservatively estimated at 550 MMBO and 550 BCFG. South Belridge field has two principal reservoir horizons; the Mio-Pliocene Belridge diatomite of the upper Monterey Formation, and the overlying Plio-Pleistocene Tulare Formation. The field lies on the crest of a large southeast-plunging anticline, sub-parallel to the nearby San Andreas fault system. The reservoir trap in both the Tulare and diatomite reservoir horizons is a combination of structure, stratigraphic factors, and tar seals; the presumed source for the oil is the deeper Monterey Formation. The diatomite reservoir produces light oil (20-32{degree} API gravity) form deep-marine diatomite and diatomaceous shales with extremely high porosity (average 60%) and low permeability (average 1 md). In contrast, the shallow ({lt}1000 ft (305 m) deep) overlying Tulare reservoir produces heavy oil (13-14{degree} API gravity) from unconsolidated, arkosic, fluviodeltaic sands of high porosity (average 35%) and permeability (average 3000 md). The depositional model is that of a generally prograding fluviodeltaic system sourced in the nearby basin-margin highlands. More than 6000 closely spaced, shallow wells are the key to steamflood production from hundreds of layered and laterally discontinuous reservoir sands which create laterally and vertically discontinuous reservoir flow units.

Miller, D.D. (Mobil Exploration and Producing U.S., Inc., Denver, CO (United States)); McPherson, J.G. (Mobil Research and Development Corp., Dallas, TX (United States))

1991-03-01T23:59:59.000Z

367

Subsurface Electrical Measurements at Dixie Valley, Nevada, Using  

Open Energy Info (EERE)

Subsurface Electrical Measurements at Dixie Valley, Nevada, Using Subsurface Electrical Measurements at Dixie Valley, Nevada, Using Single-Well and Surface-to-Well Induction Logging Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Subsurface Electrical Measurements at Dixie Valley, Nevada, Using Single-Well and Surface-to-Well Induction Logging Abstract Extended logging and surface-to-borehole electromagnetic induction measurements were performed at the Dixie Valley Geothermal Field as part of an ongoing effort to employ electromagnetic induction logging to geothermal reservoir characterization. The principal goal of this effort is to discern subsurface features useful in geothermal production, such as larger scale mapping of geothermal reservoirs and smaller scale mapping of producing

368

Chemical tracer test at the Dixie Valley geothermal field, Nevada. Geothermal Reservoir Technology research program  

DOE Green Energy (OSTI)

In the injection test described, chemical tracers established the fluid flow between one injection well and one production well. Measured tracer concentrations, calculated flow rates, sampling schedules, and the daily events of the tracer test are documented. This experiment was designed to test the application of organic tracers, to further refine the predictive capability of the reservoir model, and to improve the effectiveness of Oxbow`s injection strategy.

Adams, M.C.; Moore, J.N. [Utah Univ. Research Inst., Salt Lake City, UT (United States); Benoit, W.R. [Oxbow Geothermal Corp., Reno, NV (United States); Doughty, C.; Bodvarsson, G.S. [Lawrence Berkeley Lab., CA (United States)

1993-10-01T23:59:59.000Z

369

Summary of reservoir engineering data: Wairakei geothermal field, New Zealand  

DOE Green Energy (OSTI)

This is an abbreviated summary of the final project report on an extensive collection of fundamental field information concerning the history of the Wairakei geothermal field in New Zealand. The purpose of the effort was to accumulate any and all pertinent data so that various theoretical reservoir simulation studies may be carried out in the future in a meaningful way. Categories of data considered include electrical resistivity measurements, magnetic force surveys, surface heat flow data and a catalog of surface manifestations of geothermal activity, geological and stratigraphic information, residual gravity anomaly surveys, laboratory measurements of formation properties, seismic velocity data, measurements of fluid chemical composition, monthly well-by-well mass and heat production histories for 1953 through 1976, reservoir pressure and temperature data, and measurements of subsidence and horizontal ground deformation. The information is presented in three forms. A review of all the data is contained in the final project report. The present report summarizes that information. In addition, a magnetic tape suitable for use on a computer has been prepared. The magnetic tape contains a bank of information for each well in the field, on a well-by-well basis. For each well, the tape contains the completion date, the surface altitude, the bottomhole depth, the geographic location, the slotted and perforated interval locations, the bottomhole diameter, locations of known casing breaks, the geologic drilling log, fault intersections, shut-in pressure measurements, and month-by-month production totals of both mass and heat for each month from January 1953 through December 1976.

Pritchett, J.W.; Rice, L.F.; Garg, S.K.

1979-01-01T23:59:59.000Z

370

Modeling discharge requirements for deep geothermal wells at the Cerro Prieto geothermal field, MX  

DOE Green Energy (OSTI)

During the mid-l980's, Comision Federal de Electricidad (CFE) drilled a number of deep wells (M-200 series) at the Cerro Prieto geothermal field, Baja California, Mexico to investigate the continuation of the geothermal reservoir to the east of the Cerro Prieto-II and III production areas. The wells encountered permeability at depths ranging from 2,800 to 4,400 m but due to the reservoir depth and the relatively cold temperatures encountered in the upper 1,000 to 2,000 m of the wells, it was not possible to discharge some of the wells. The wells at Cerro Prieto are generally discharged by injecting compressed air below the water level using 2-3/8-inch tubing installed with either a crane or workover rig. The objective of this technique is to lift sufficient water out of the well to stimulate flow from the reservoir into the wellbore. However, in the case of the M-200 series wells, the temperatures in the upper 1,000 to 2,000 m are generally below 50 C and the heat loss to the formation is therefore significant. The impact of heat loss on the stimulation process was evaluated using both a numerical model of the reservoir/wellbore system and steady-state wellbore modeling. The results from the study indicate that if a flow rate of at least 300 liters/minute can be sustained, the well can probably be successfully stimulated. This is consistent with the flow rates obtained during the successful stimulations of wells M-202 and M-203. If the flow rate is closer to 60 liters/minute, the heat loss is significant and it is unlikely that the well can be successfully discharged. These results are consistent with the unsuccessful discharge attempts in wells M-201 and M-205.

Menzies, Anthony J.; Granados, Eduardo E.; Puente, Hector Gutierrez; Pierres, Luis Ortega

1995-01-26T23:59:59.000Z

371

CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA |  

Open Energy Info (EERE)

CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA Details Activities (1) Areas (1) Regions (0) Abstract: Borehole induced structures in image logs of wells from the Coso Geothermal Field (CGF), CA record variation in the azimuth of principal stress. Image logs of these structures from five wells were analyzed to quantify the stress heterogeneity for three geologically distinct locations: two wells within the CGF (one in an actively produced volume), two on the margin of the CGF and outside the production area, and a control well several tens of kilometers south of the CGF. Average directions of

372

An Updated Conceptual Model Of The Travale Geothermal Field Based On Recent  

Open Energy Info (EERE)

Travale Geothermal Field Based On Recent Travale Geothermal Field Based On Recent Geophysical And Drilling Data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Updated Conceptual Model Of The Travale Geothermal Field Based On Recent Geophysical And Drilling Data Details Activities (0) Areas (0) Regions (0) Abstract: an updated picture of the Travale field is given, based on geophysical and drilling data acquired since 1978. In deriving the model, extensive use is made of the geophysical data produced in the course of the EEC test site programme (1980-1983), particularly from seismic and time domain EM methods which allowed for penetrating thick and conductive cover formations and to match deep tectonic and hydrothermal alteration trends thought to indirectly characterize the geothermal reservoir. It is

373

Scattering from a fault interface in the Coso geothermal field | Open  

Open Energy Info (EERE)

Scattering from a fault interface in the Coso geothermal field Scattering from a fault interface in the Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Scattering from a fault interface in the Coso geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: Large-amplitude, secondary arrivals are modeled as scattering anomalies near the Coso, California, geothermal field. Polarization and ray tracing methods determine the orientation and location of the scattering body. Two models are proposed for the scatterer: (1) a point scatterer located anywhere in a one-dimensional (1-D), layered velocity model; and (2) a dipping interface between two homogeneous half spaces. Each model is derived by non-linear, grid search inversion for the optimal solution which best predicts observed travel times. In each case the models predict a

374

A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles  

Open Energy Info (EERE)

Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Details Activities (10) Areas (2) Regions (0) Abstract: The Baca location #1 geothermal field is located in north-central New Mexico within the western half of the Plio-Pleistocene Valles Caldera. Steam and hot water are produced primarily from the northeast-trending Redondo Creek graben, where downhole temperatures exceed 260┬░C at depths of less than 2 km. Stratigraphically the reservoir region can be described as a five-layer sequence that includes Tertiary and Quaternary volcanic rocks, and Mesozoic and Tertiary sediments overlying Precambrian granitic

375

NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA | Open  

Open Energy Info (EERE)

NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: NEW SEISMIC IMAGING OF THE COSO GEOTHERMAL FIELD, EASTERN CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: New multifold seismic reflection data from the central Coso Range, eastern California, image brittle faults and other structures in Mesozoic crystalline rocks that host a producing geothermal field. The reflection data were processed in two steps that incorporate new seismic imaging methods: (1) Pwave first arrivals in the seismic data were inverted for subsurface acoustic velocities using a non-linear simulated annealing approach; and (2) 2-D Velocity tomograms obtained from the inversions were

376

Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea  

Open Energy Info (EERE)

Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea Lower East Rift Zone, Puna, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea Lower East Rift Zone, Puna, Hawaii Abstract The local fault and dike structures in Puna, southeastern Hawaii, are of interest both in terms of electricity productionand volcanic hazard monitoring. The geothermal powerplant at Puna has a 30 MW capacity and is built on a sectionof the Kilauea Lower East Rift Zone that was resurfaced by lava flows as recently as 1955 and 1960.The Puna Borehole Network was established in 2006 inorder to provide detailed seismic data about the Puna geothermal field. The array consists of eight 3-component borehole

377

Baseline studies in the desert ecosystem at East Mesa Geothermal Test Site, Imperial Valley, California  

DOE Green Energy (OSTI)

Baseline data reported herein for soil, vegetation, and small mammal components of the East Mesa desert ecosystem represent a collection period from October 1975 to September 1977. Inasmuch as changes in salt balance from geothermal brine sources are of potential impact upon the ecosystem, considerable analytical effort was given to the determination of element constituents in soil, plant, and animal samples. A preliminary synthesis of data was done to investigate the heterogeneity of element constituents among the sampled population and to summarize results. Findings indicate that periodic sampling and chemical analysis of vegetation around an industrialized geothermal energy source is probably the best way to monitor the surrounding ecosystem for assuring containment of any resource pollutants.

Romney, E.M.; Wallace, A.; Lunt, O.R.; Ackerman, T.A.; Kinnear, J.E.

1977-09-01T23:59:59.000Z

378

Results of investigation at the Ahuachapan Geothermal Field, El Salvador  

DOE Green Energy (OSTI)

The Ahuachapan Geothermal Field (AGF) is a 95 megawatt geothemal-sourced power-plant operated by the Comision Ejecutiva Hidroelectrica del Rio Lempa (CEL) of El Salvador. During the past decade, as part of an effort to increase in situ thermal reserves in order to realize the full generation capacity of the AGF, extensive surface geophysical coverage has been obtained over the AGF and the prospective Chipilapa area to the east. The geophysical surveys were performed to determine physical property characteristics of the known reservoir and then to search for similar characteristics in the Chipilapa area. A secondary objective was to evaluate the surface recharge area in the highlands to the south of the AGF. The principal surface electrical geophysical methods used during this period were DC resistivity and magnetotellurics. Three available data sets have been reinterpreted using drillhole control to help form geophysical models of the area. The geophysical models are compared with the geologic interpretations.

Fink, J.B. (HydroGeophysics, Tucson, AZ (United States))

1990-04-01T23:59:59.000Z

379

Listing of scientific data on the Baca Geothermal Field  

DOE Green Energy (OSTI)

This document is a record of the available open-file technical data collected at the Baca Geothermal Field, New Mexico. The data base is located at the Earth Sciences Division of the Lawrence Berkeley Laboratory, Berkeley, California. This document will serve as a handbook for using the data base. Section 1 includes general reference materials such as published reports, bibliographies, and proposals. Section 2 contains various types of progress reports. Sections 3 and 4 describe individual well data: Section 3 consists of well log data (retained in both the original and digitized forms) and Section 4 lists various tests carried out in the different wells. Data in both Sections are listed by test date.

Spencer, R.K.; Tsang, C.F.

1984-06-01T23:59:59.000Z

380

Geothermal Energy Resource Assessment  

DOE Green Energy (OSTI)

This report covers the objectives and the status of a long-range program to develop techniques for assessing the resource potential of liquid-dominated geothermal systems. Field studies underway in northern Nevada comprise a systematic integrated program of geologic, geophysical, and geochemical measurements, necessary to specify a drilling program encompassing heat flow holes, deep calibration holes, and ultimately, deep test wells. The status of Nevada field activities is described. The areas under study are in a region characterized by high heat flow where temperatures at depth in some geothermal systems exceed 180 C. Areas presently being examined include Beowawe Hot Springs in Whirlwind Valley. Buffalo Valley Hot Springs, Leach Hot Springs in Grass Valley, and Kyle Hot Springs in Buena Vista Valley. Geologic studies encompass detailed examinations of structure and lithology to establish the geologic framework of the areas. The geothermal occurrences are characterized by zones of intense fault intersection, which furnish permeable channelways for the introduction of meteoric water into regions of high temperature at depth.

Wollenberg, H.A.; Asaro, F.; Bowman, H.; McEvilly, T.; Morrison, F.; Witherspoon, P.

1975-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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381

The Ahuachapan geothermal field, El Salvador: Reservoir analysis  

DOE Green Energy (OSTI)

The Earth Sciences Division of Lawrence Berkeley Laboratory (LBL) is conducting a reservoir evaluation study of the Ahuachapan geothermal field in El Salvador. This work is being performed in cooperation with the Comision Ejecutiva Hidroelectrica del Rio Lempa (CEL) and the Los Alamos National Laboratory (LANL). This report describes the work done during the first year of the study (FY 1988--89), and includes the (1) development of geological and conceptual models of the field, (2) evaluation of the initial thermodynamic and chemical conditions and their changes during exploitation, (3) evaluation of interference test data and the observed reservoir pressure decline, and (4) the development of a natural state model for the field. The geological model of the field indicates that there are seven (7) major and five (5) minor faults that control the fluid movement in the Ahuachapan area. Some of the faults act as a barrier to flow as indicated by large temperature declines towards the north and west. Other faults act as preferential pathways to flow. The Ahuachapan Andesites provide good horizontal permeability to flow and provide most of the fluids to the wells. The underlying Older Agglomerates also contribute to well production, but considerably less than the Andesites. 84 refs.

Aunzo, Z.; Bodvarsson, G.S.; Laky, C.; Lippmann, M.J.; Steingrimsson, B.; Truesdell, A.H.; Witherspoon, P.A. (Lawrence Berkeley Lab., CA (USA); Icelandic National Energy Authority, Reykjavik (Iceland); Geological Survey, Menlo Park, CA (USA); Lawrence Berkeley Lab., CA (USA))

1989-08-01T23:59:59.000Z

382

Category:Geothermal References | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon ┬╗ Category:Geothermal References Jump to: navigation, search Add a new Reference Pages in category "Geothermal References" The following 200 pages are in this category, out of 323 total. (previous 200) (next 200) 2 2-D Magnetotellurics At The Geothermal Site At Soultz-Sous-Forets- Resistivity Distribution To About 3000 M Depth 2007 Annual Report A A Case History of Injection Through 1991 at Dixie Valley, Nevada A Coordinated Exploration Program for Geothermal Sources on the Island of Hawaii A geochemical model of the Kilauea east rift zone A model for the shallow thermal regime at Dixie Valley geothermal field

383

Imaging Structure With Fluid Fluxes At The Bradys Geothermal Field With  

Open Energy Info (EERE)

Imaging Structure With Fluid Fluxes At The Bradys Geothermal Field With Imaging Structure With Fluid Fluxes At The Bradys Geothermal Field With Satellite Interferometric Radar (Insar)- New Insights Into Reservoir Extent And Structural Controls Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Imaging Structure With Fluid Fluxes At The Bradys Geothermal Field With Satellite Interferometric Radar (Insar)- New Insights Into Reservoir Extent And Structural Controls Details Activities (1) Areas (1) Regions (0) Abstract: We present a new example of Interferometric Synthetic Aperture Radar's (InSAR) remarkable utility for defining an operating geothermal reservoir's lateral extent and hydrologically active fracture systems. InSAR reveals millimeter-level surface change due to volume change in the reservoir and overlying aquifer systems caused by fluid pressure reduction

384

3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field,  

Open Energy Info (EERE)

3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, 3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, Indonesia Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: 3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, Indonesia Details Activities (0) Areas (0) Regions (0) Abstract: Three-dimensional (3-D) interpretation was carried out for the magnetotelluric (MT) data obtained in a geothermal area in Indonesia. The inversion scheme was based on the linearized leastsquares method with smoothness regularization. In addition to the subsurface resistivity structure, static shifts were also included as unknown parameters in the inversion. Forward modeling was by the finite difference scheme. The sensitivity matrix was computed once for a homogeneous half space and used

385

Subsurface structure of the southern portion of the Salton Sea geothermal field  

DOE Green Energy (OSTI)

Subsurface correlation of sedimentary strata was attempted among ten geothermal wells in the southern portion of the Salton Sea Geothermal Field. The spontaneous potential (SP) log was the principal tool used for correlation purposes. The structure that emerges from the correlation diagrams is a shallow plunging syncline with an east-west axis perpendicular to the axis of the Salton Trough.

Chan, M.A.; Tewhey, J.D.

1977-11-01T23:59:59.000Z

386

San Francisco Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Plants (0) Projects (0) Activities (6) NEPA(0) Geothermal Area Profile Location Arizona Exploration Region Other GEA Development Phase 2008 USGS Resource Estimate Mean Reservoir...

387

Geology and thermal regime, geothermal test USA No. 11-36, Grass Valley, Nevada  

DOE Green Energy (OSTI)

This report summarizes the results of drilling of an 8,565 foot geothermal test near Leach Hot Springs, Pershing County, Nevada, by Sunoco Energy Development Company. USA No.11-36 is located 500 feet south and 500 feet east of the northwest corner of Section 36, T. 32 N., R. 38 E (Mount Diablo Meridian), elevation 4,573 feet. It was drilled between May 15 and July 2, 1980. USA No.11-36 was deemed unsuccessful, having encountered no temperature higher than 270 F and no significant permeability, and was plugged and abandoned without testing prior to releasing the rig.

Wilde, Walter R.; Koenig, James B.

1980-08-01T23:59:59.000Z

388

ERDA Geothermal Component Test Facility (GCTF), East Mesa, Imperial Valley, California. Test operations management plan  

DOE Green Energy (OSTI)

Discussion of the operation of the Geothermal Component Test Facility (GCTF), established for testing heat extraction and energy conversion equipment and materials, is presented under the following section headings: purposes of the facility; operating policies: service, conflicts, safety and environmental, investigator activities, shops and equipment, and test certification; organization: chart; Lawrence Berkely Laboratory: organization, responsibilities, individual responsibilities, and funding; Bureau of Reclamation: organization, responsibilities, and funding; operations contractor: contract, qualifications, and personnel; Test Operations Advisory Board; experiment processing: test acceptance, scheduling and priorities, cost reimbursement, and activities flow chart.

Not Available

1976-01-01T23:59:59.000Z

389

Session: Long Valley Exploratory Well  

DOE Green Energy (OSTI)

This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of four presentations: ''Long Valley Exploratory Well - Summary'' by George P. Tennyson, Jr.; ''The Long Valley Well - Phase II Operations'' by John T. Finger; ''Geologic results from the Long Valley Exploratory Well'' by John C. Eichelberger; and ''A Model for Large-Scale Thermal Convection in the Long Valley Geothermal Region'' by Charles E. Hickox.

Tennyson, George P. Jr.; Finger, John T.; Eichelberger, John C.; Hickox, Charles E.

1992-01-01T23:59:59.000Z

390

Velocity and Attenuation Structure of the Geysers Geothermal Field, California  

DOE Green Energy (OSTI)

The Geysers geothermal field is located in northern California and is one of the world's largest producers of electricity from geothermal energy. The resource consists of primarily dry steam which is produced from a low, porosity fractured graywacke. Over the last several years steam pressure at the Geysers has been dropping. Concern over decline of the resource has prompted research to understand its fundamental nature. A key issue is the distribution of fluid in the matrix of the reservoir rock. In this paper we interpret seismic compressional-wave velocity and attenuation data at the Geysers in terms of the geologic structure and fluid saturation in the reservoir. Our data consist of approximately 300 earthquakes that are of magnitude 1.2 and are distributed in depth between sea level and 2.5 km. Using compressional-wave arrival times, we invert for earthquake location, origin time, and velocity along a three-dimensional grid. Using the initial pulse width of the compressional-wave, we invert for the initial pulse width associated with the source, and the one-dimensional Q structure. We find that the velocity structure correlates with known mapped geologic units, including a velocity high that is correlated with a felsite body at depth that is known from drilling. The dry steam reservoir, which is also known from drilling, is mostly correlated with low velocity. The Q increases with depth to the top of the dry steam reservoir and decreases with depth within the reservoir. The decrease of Q with depth probably indicates that the saturation of the matrix of the reservoir rock increases with depth.

Zucca, J. J.; Hutchings, L. J.; Kasameyer, P. W.

1993-01-01T23:59:59.000Z

391

ARM - Field Campaign - Ganges Valley Aerosol Experiment (GVAX)  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsGanges Valley Aerosol Experiment (GVAX) govCampaignsGanges Valley Aerosol Experiment (GVAX) Campaign Links Science Plan AMF India Deployment Website Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Ganges Valley Aerosol Experiment (GVAX) 2011.06.13 - 2012.03.31 Website : http://www.arm.gov/sites/amf/pgh/ Lead Scientist : V. Rao Kotamarthi Description The Ganges valley region is one of the largest and most rapidly developing sections of the Indian subcontinent. The Ganges River, which provides the region with water needed for sustaining life, is fed primarily by snow and rainfall associated with Indian summer monsoon. Impacts of changes in precipitation patterns, temperature, and the flow of the snow-fed rivers could be immense. Recent satellite-based measurements have indicated that

392

Overview of Geothermal Energy Development  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geothermal Energy Geothermal Energy Development Kermit Witherbee Geothermal Geologist/Analyst DOE Office of Indian Energy Webcast: Overview of Geothermal Energy Development Tuesday, January 10, 2012 Geothermal Geology and Resources Environmental Impacts Geothermal Technology - Energy Conversion Geothermal Leasing and Development 2 PRESENTATION OUTLINE GEOTHERMAL GEOLOGY AND RESOURCES 3 Geology - Plate Tectonics 4 Plate Tectonic Processes Schematic Cross-Section "Extensional" Systems- "Rifting" Basin and Range Rio Grand Rift Imperial Valley East Africa Rift Valley "Magmatic" Systems Cascade Range 6 Geothermal Resources(USGS Fact Sheet 2008-3062) 7 State Systems

393

Field Mapping At Northern Basin and Range Geothermal Region (1993) | Open  

Open Energy Info (EERE)

Geothermal Region (1993) Geothermal Region (1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Northern Basin and Range Geothermal Region (1993) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Field Mapping Activity Date 1993 Usefulness not indicated DOE-funding Unknown Notes New apatite fission track cooling age and track length data, supplemented by other information, point to the Early to Middle Miocene as an additional time of very significant extension-induced uplift and range formation. Many ranges in a 700-km-long north-south corridor from the Utah-Nevada-Idaho border to southernmost Nevada experience extension and major exhumation in Early to Middle Miocene time. Reconnaissance apatite ages from the Toiyabe

394

Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data,  

Open Energy Info (EERE)

Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Fracture Characterization Technologies Project Description The proposed program will focus on predicting characteristics of fractures and their orientation prior to drilling new wells. It will also focus on determining the location of the fractures, spacing and orientation during drilling, as well as characterizing open fractures after stimulation to help identify the location of fluid flow pathway within the EGS reservoir. These systems are created by passively injecting cold water, and stimulating the permeation of the injected water through existing fractures into hot wet and hot dry rocks by thermo-elastic cooling shrinkage. The stimulated, existing fractures thus enhance the permeability of the hot rock formations, hence enabling better circulation of water for the purpose of producing the geothermal resource. The main focus of the project will be on developing better understanding of the mechanisms for the stimulation of existing fractures, and to use the information for better exploitation of the high temperature geothermal resources located in the northwest portion of the Geysers field and similar fields.

395

A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal  

Open Energy Info (EERE)

Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal System Details Activities (3) Areas (1) Regions (0) Abstract: Fluids from springs, fumaroles, and wells throughout Dixie Valley, NV were analyzed for noble gas abundances and isotopic compositions. The helium isotopic compositions of fluids produced from the Dixie Valley geothermal field range from 0.70 to 0.76 Ra, are among the highest values in the valley, and indicate that similar to 7.5% of the total helium is derived from the mantle. A lack of recent volcanics or other potential sources requires flow of mantle-derived helium up along the

396

Field Mapping At Coso Geothermal Area (2001-2003) | Open Energy Information  

Open Energy Info (EERE)

-2003) -2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Coso Geothermal Area (2001-2003) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Field Mapping Activity Date 2001 - 2003 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine structural control on permeability and fluid production Notes New multifold seismic reflection data from the Coso geothermal field in the central Coso Range, eastern California, image brittle faults and other structures in a zone of localized crustal extension between two major strike-slip faults. Production in the Coso field primarily occurs in the hanging walls of the listric faults. References Unruh, J. (1 January 2001) NEW SEISMIC IMAGING OF THE COSO

397

IN SEARCH FOR THERMAL ANOMALIES IN THE COSO GEOTHERMAL FIELD (CALIFORNIA)  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon ┬╗ IN SEARCH FOR THERMAL ANOMALIES IN THE COSO GEOTHERMAL FIELD (CALIFORNIA) USING REMOTE SENSING AND FIELD DATA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: IN SEARCH FOR THERMAL ANOMALIES IN THE COSO GEOTHERMAL FIELD (CALIFORNIA) USING REMOTE SENSING AND FIELD DATA Details Activities (2) Areas (1) Regions (0) Abstract: We attempt to identify thermal anomalies using thermal infrared (TIR) data collected over the Coso Geothermal Power Project with the spaceborne ASTER instrument. Our analysis emphasizes corrections for thermal artifacts in the satellite images caused by topography, albedo, and

398

Discovery and geology of the Desert Peak geothermal field: a case history. Bulletin 97  

DOE Green Energy (OSTI)

A case history of the exploration, development (through 1980), and geology of the Desert Peak geothermal field is presented. Sections on geochemistry, geophysics, and temperature-gradient drilling are included.

Benoit, W.R.; Hiner, J.E.; Forest, R.T.

1982-09-01T23:59:59.000Z

399

Mexican--American cooperative program at the Cerro Prieto Geothermal Field  

DOE Green Energy (OSTI)

The Cerro Prieto project incorporates studies of the geologic, hydrogeologic, geochemical, and geophysical setting of the geothermal field as well as its structural, reservoir engineering, and subsidence characteristics. A description of the activities involved in each part of this cooperative program is presented. Text of the agreement between the Comision Federal de Electricidad of Mexico and the USERDA for the cooperative study of the Cerro Prieto geothermal field is included.

Witherspoon, P.A.; Espinosa, H.A.; Lippmann, M.J.; Mercado, A.M.; Wollenberg, H.A.

1978-08-01T23:59:59.000Z

400

Flint Geothermal Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Flint Geothermal Geothermal Area Flint Geothermal Geothermal Area (Redirected from Flint Geothermal Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Flint Geothermal Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Field Studies of Geothermal Reservoirs Rio Grande Rift, New Mexico  

DOE Green Energy (OSTI)

The Rio Grande rift provides an excellent field laboratory to study the nature of geothermal systems in an extensional environment. Much of the geologic complexity that is found in the Basin and Range is absent because the rift is located on cratonic crust with a thin and well-characterized Phanerozoic stratigraphy and tectonic history. On the other hand, the Neogene thermo-tectonic history of the rift has many parallels with the Basin and Range to the west. The geology of the southern Rio Grande rift is among the best characterized of any rift system in the world. Also, most geologic maps for the region are rather unique in that detailed analyses of Quaternary stratigraphic and surficial unit are added in concert with the details of bedrock geology. Pleistocene to Holocene entrenchment of the Rio Grande and tributaries unroofs the alteration signatures and permeability attributes of paleo outflow plumes and upflow zones, associated with present-day, but hidden or ''blind,'' hydrothermal systems at Rincon and San Diego Mountain.

James C Witcher

2002-07-30T23:59:59.000Z

402

Results of investigations at the Ahuachapan geothermal field, El Salvador  

Science Conference Proceedings (OSTI)

Well logging operations were performed in eight of the geothermal wells at Ahuachapan. High-temperature downhole instruments, including a temperature/rabbit, caliper, fluid velocity spinner/temperature/pressure (STP), and fluid sampler, were deployed in each well. The caliper tool was used primarily to determine if chemical deposits were present in well casings or liners and to investigate a suspected break in the casing in one well. STP logs were obtained from six of the eight wells at various flow rates ranging from 30 to 80 kg/s. A static STP log was also run with the wells shut-in to provide data to be used in the thermodynamic analysis of several production wells. The geochemical data obtained show a system configuration like that proposed by C. Laky and associates in 1989. Our data indicate recharge to the system from the volcanic highlands south of the field. Additionally, our data indicate encroachment of dilute fluids into deeper production zones because of overproduction. 17 refs., 50 figs., 10 tabs.

Dennis, B.; Goff, F.; Van Eeckhout, E.; Hanold, B. (comps.)

1990-04-01T23:59:59.000Z

403

Geothermal Information Dissemination and Outreach  

SciTech Connect

Project Purpose To enhance technological and topical information transfer in support of industry and government efforts to increase geothermal energy use in the United States (power production, direct use, and geothermal groundsource heat pumps). Project Work GRC 2003 Annual Meeting. The GRC convened the meeting on Oct. 12-15, 2003, at Morelia's Centro de Convenciones y ExpoCentro in Mexico under the theme, International Collaboration for Geothermal Energy in the Americas. The event was also sponsored by the Comision Federal de Electricidad. ~600 participants from more than 20 countries attended the event. The GRC convened a Development of Geothermal Projects Workshop and Geothermal Exploration Techniques Workshop. GRC Field Trips included Los Azufres and Paricutin Volcano on Oct. 11. The Geothermal Energy Association (Washington, DC) staged its Geothermal Energy Trade Show. The Annual Meeting Opening Session was convened on Oct. 13, and included the governor of Michoacan, the Mexico Assistant Secretary of Energy, CFE Geothermal Division Director, DOE Geothermal Program Manager, and private sector representatives. The 2003 Annual Meeting attracted 160 papers for oral and poster presentations. GRC 2004. Under the theme, Geothermal - The Reliable Renewable, the GRC 2004 Annual Meeting convened on Aug. 29-Sept. 1, 2004, at the Hyatt Grand Champions Resort at Indian Wells, CA. Estimated total attendance (including Trade Show personnel, guests and accompanying persons) was ~700. The event included a workshop, Geothermal Production Well Pump Installation, Operation and Maintenance. Field trips went to Coso/Mammoth and Imperial Valley/Salton Sea geothermal fields. The event Opening Session featured speakers from the U.S. Department of Energy, U.S. Department of the Interior, and the private sector. The Geothermal Energy Association staged its Geothermal Energy Trade Show. The Geothermal Education Office staged its Geothermal Energy Workshop. Several local radio and TV station interviews were conducted during the event. Technical Program included 136 technical papers. All were published in Volume 28 of the GRC Transactions. Volume 28, GRC Transactions Pblished as a high-quality, durable casebound volume, Volume 28 of the Transactions published 119 out of 136 technical papers (692 pp) presented at the GRC 2004 Annual Meeting. The papers were submitted by geothermal experts and professionals from around the world. The papers were reviewed over a 2-day period by 25 volunteer (in-kind) geothermal experts from the private sector and DOE National Laboratories. GRC staff received and cataloged the papers, and maintained interaction with authors for revisions and corrections. DOE Geothermal Technologies Newsletter The Office of Geothermal Technologies quarterly newsletter, Geothermal Technologies, is produced at the National Renewable Energy Laboratory (NREL). This 2-color, 4- to 16-page newsletter summarizes federal geothermal research and development projects and other DOE geothermal news. The GRC receives newsletter disk copy and color-key proof from NREL for each newsletter, then follows through with print production and distribution. Circulation is 1,000 per issue (plus 300 copies of the newsletter shipped to NREL for internal and public distribution). During the project period, the GRC printed, stitched and bound the Geothermal Technologies newsletter into the Sept/Oct 2003, Jan/Feb 2004, and May/June 2004 editions of the GRC Bulletin. Multiple copies (300) of the newsletter sans magazine were provided to NREL for internal DOE distribution. GRC Geothermal Research Library The GRC has built the largest and most comprehensive library in the world devoted to geothermal energy. The GRC Geothermal Library provides rapid accessibility to the majority of technical literature crafted over the past 30 years, and preserves hard copy and on-line databases for future use by geothermal researchers and developers. A bibliography for over half of the physical library's citations is available through keyword search on the GRC web site (www.geothe

Ted J. Clutter, Geothermal Resources Council Executive Director

2005-02-18T23:59:59.000Z

404

An Oxygen Isotope Study Of Silicates In The Larderello Geothermal Field,  

Open Energy Info (EERE)

Oxygen Isotope Study Of Silicates In The Larderello Geothermal Field, Oxygen Isotope Study Of Silicates In The Larderello Geothermal Field, Italy Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Oxygen Isotope Study Of Silicates In The Larderello Geothermal Field, Italy Details Activities (0) Areas (0) Regions (0) Abstract: Stable-isotope analyses were carried out on hydrothermal minerals sampled from the deep metamorphic units at Larderello, Italy. The D18O values obtained for the most retentive minerals, quartz and tourmaline, are from + 12.0ÔÇ░ to + 14.7ÔÇ░ and 9.9ÔÇ░, respectively, and indicate deposition from an 18O-rich fluid. Calculated D18O values for these fluids range from + 5.3ÔÇ░ to + 13.4ÔÇ░. These values, combined with available fluid inclusion and petrographic data, are consistent with the proposed

405

A STUDY OF THE STRUCTURAL CONTROL OF FLUID FLOW WITHIN THE CERRO PRIETO GEOTHERMAL FIELD, BAJA CALIFORNIA, MEXICO  

E-Print Network (OSTI)

Herzen, R. P. : "A Major Geothermal Anomaly in the Gulf ofA s s e s s m e n t of Geothermal R e s o u r c e s i n thein the Cerro Prieto Geothermal Field, Mexico", in P r o c e

Noble, John E.

2011-01-01T23:59:59.000Z

406

Behavior Of Rare Earth Element In Geothermal Systems, A New  

Open Energy Info (EERE)

Behavior Of Rare Earth Element In Geothermal Systems, A New Behavior Of Rare Earth Element In Geothermal Systems, A New Exploration-Exploitation Tool Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Behavior Of Rare Earth Element In Geothermal Systems, A New Exploration-Exploitation Tool Details Activities (32) Areas (17) Regions (0) Abstract: The goal of this four-year project was to provide a database by which to judge the utility of the rare earth elements (REE) in the exploration for and exploitation of geothermal fields in the United States. Geothermal fluids from hot springs and wells have been sampled from a number of locations, including: (1) the North Island of New Zealand (1 set of samples); (2) the Cascades of Oregon; (3) the Harney, Alvord Desert and Owyhee geothermal areas of Oregon; (4) the Dixie Valley and Beowawe fields

407

Field Monitoring of a Geothermal Heat Pump Water Heater: Unicoi County High School, Erwin, Tennessee  

Science Conference Proceedings (OSTI)

A geothermal heat pump water heater (HPWH) system -- installed to preheat water entering a 250-gallon gas-fired water heater (GWH) at a Tennessee high school -- reduced water-heating costs by 34 percent per year, compared to the base case GWH system. This report provides results from field monitoring of the geothermal HPWH system, tested in three distinct operating modes for five months. The program goal was to assess the energy and economic benefits of the GWH system with and without the geothermal HPWH...

2003-10-15T23:59:59.000Z

408

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon ┬╗ Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Details Activities (5) Areas (2) Regions (0) Abstract: Two hot dry rock (HDR) geothermal energy reservoirs have been created by hydraulic fracturing of Precambrian granitic rock between two wells on the west flank of the Valles Caldera in the Jemez Mountains of northern New Mexico. Heat is extracted by injecting water into one well,

409

Analysis of Injection-Induced Micro-Earthquakes in a Geothermal Steam Reservoir, The Geysers Geothermal Field, California  

E-Print Network (OSTI)

Earthquakes in a Geothermal Steam Reservoir, The Geysersanalysis of the geothermal steam production and cold waterAs a result of high rate of steam withdrawal, the reservoir

Rutqvist, J.

2008-01-01T23:59:59.000Z

410

Geothermal Energy Resource Investigations, Chocolate Mountains Aerial  

Open Energy Info (EERE)

Investigations, Chocolate Mountains Aerial Investigations, Chocolate Mountains Aerial Gunnery Range, Imperial Valley, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geothermal Energy Resource Investigations, Chocolate Mountains Aerial Gunnery Range, Imperial Valley, California Details Activities (5) Areas (1) Regions (0) Abstract: The US Navy's Geothermal Program Office (GPO), has conducted geothermal exploration in the Chocolate Mountains Aerial Gunnery Range (CMAGR) since the mid-1970s. At this time, the focus of the GPO had been on the area to the east of the Hot Mineral Spa KGRA, Glamis and areas within the Chocolate Mountains themselves. Using potential field geophysics, mercury surveys and geologic mapping to identify potential anomalies related to recent hydrothermal activity. After a brief hiatus starting in

411

The Momotombo Geothermal Field, Nicaragua: Exploration and development case history study  

DOE Green Energy (OSTI)

This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultants produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of resources.

None

1982-07-01T23:59:59.000Z

412

GEOTHERMAL RESOURCE AND RESERVOIR INVESTIGATIONS OF U.S. BUREAU OF RECLAMATION LEASEHOLDS AT EAST MESA, IMPERIAL VALLEY, CALIFORNIA  

E-Print Network (OSTI)

to assess their geothermal desalination program. The studyavailability of fluid for desalination and the geochemistrywere appropriate for the USBR desalination project. In both

2009-01-01T23:59:59.000Z

413

An Integrated Model For The Geothermal Field Of Milos From Geophysical  

Open Energy Info (EERE)

Milos From Geophysical Milos From Geophysical Experiments Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Model For The Geothermal Field Of Milos From Geophysical Experiments Details Activities (0) Areas (0) Regions (0) Abstract: The results of geophysical experiments carried out by eight teams on the island of Milos as part of an integrated project under the European Commission's geothermal R & D programme are considered. The combination of these data with earlier studies on the geology and geophysics of Milos allow the compilation of a possible model of the geothermal reservoir and its surroundings in the central eastern part of the island. The reservoir is fed by convection of hot fluids from a depth of several kilometres, but the geophysical data provide no strong support for the earlier hypothesis

414

Geothermal Systems of the Yellowstone Caldera Field Trip Guide  

Science Conference Proceedings (OSTI)

Geothermal studies are proceedings on two fronts in the West Yellowstone area. High-temperature resources for the generation of electricity are being sought in the Island Park area, and lower temperatures resources for direct applications, primarily space heating, are being explored for near the town of West Yellowstone. Potential electric geothermal development in the Island Park area has been the subject of widespread publicity over fears of damage to thermal features in Yellowstone Park. At the time of writing this guide, companies have applied for geothermal leases in the Island Park area, but these leases have not yet been granted by the US Forest Service. The Senate is now discussing a bill that would regulate geothermal development in Island Park; outcome of this debate will determine the course of action on the lease applications. The Island Park area was the site of two cycles of caldera activity, with major eruptions at 2.0 and 1.2 million years ago. The US Geological Survey estimates that 16,850 x 10{sup 18} joules of energy may remain in the system. Geothermal resources suitable for direct applications are being sought in the West Yellowstone vicinity by the Montana Bureau of Mines and Geology, under funding from the US Department of Energy. West Yellowstone has a mean annual temperature of 1-2 C. Research thus far suggests that basement rocks in the vicinity are at a depth of about 600 m and are probably similar to the rocks exposed north of Hebgen Lake, where Precambrian, Paleozoic and Mesozoic rocks have been mapped. A few sites with anomalously warm water have been identified near the town. Work is continuing on this project.

Foley, Duncan; Neilson, Dennis L.; Nichols, Clayton R.

1980-09-08T23:59:59.000Z

415

Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada,  

Open Energy Info (EERE)

Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada, Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada, Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada, Geothermal Field Abstract Borehole televiewer, temperature, and flowmeter datarecorded in six wells penetrating a geothermalreservoir associated with the Stillwater fault zone inDixie Valley, Nevada, were used to investigate therelationship between reservoir permeability and thecontemporary in situ stress field. Data from wellsdrilled into productive and nonproductive segments ofthe Stillwater fault zone indicate that permeability inall wells is dominated by a relatively small number offractures striking parallel to the local trend of

416

Imperial County geothermal development. Quarterly report, April 1, 1980-June 30, 1981  

DOE Green Energy (OSTI)

Three areas are reported: Geothermal Administration, Geothermal Planning; and other Geothermal Activities. Geothermal Administration addresses the status of the Imperial Valley Environmental Project (IVEP) transfer, update of the Geothermal Resource Center, and findings of Geothermal field inspections. Field inspections will cover the four new wells drilled by Magma at the Salton Sea in preparation for 28 MW power plant, the progress at Sperry at East Mesa, and the two on-line power plants in East Mesa and North Brawley. Evaluation of cooperative efforts will cover the Geothermal Subsidence Detection Network Resurvey, Master EIR for the Salton Sea and the Annual Imperial County Geothermal meeting. The status of Geothermal development throughout the County will cover existing proposed facilities. The summary of the Geothermal meeting (Appendix A) will also provide the status of several projects. Geothermal Planning addresses the EIR Notice of Exemption from CEQA, progress on the Master EIR for the Salton Sea, and the EIR for Phillips Petroleum for 6 exploratory wells in the Truckhaven area. Other Geothermal Activity addresses the Department of Energy Region IX meeting hosted by Imperial County, the Annual Imperial County Geothermal meeting, Class II-1 geothermal hazardous waste disposal siting study, and Imperial County Geothermal Direct Heat Study.

Not Available

1981-01-01T23:59:59.000Z

417

Analysis of the apiclutural industry in relation to geothermal development and agriculture in the Imperial Valley, Imperial County, California  

DOE Green Energy (OSTI)

PART I: Continuous exposure to 30 ppB H/sub 2/S increased lifespan of caged worker honey bees, Apis mellifera L., 33%; whereas, bees exposed > 13 days to 100 ppB and 300 ppB H/sub 2/S the lifespan was shortened 32% and 51%, respectively, over unexposed bees; bees exposed > 15 days to a combination of 300 ppB H/sub 2/S + 50 ppM CO/sub 2/ the lifespan was shortened 4.4% more that 300 ppB H/sub 2/S alone. The mean temperature and/or relative humidity did not exert a direct effect on the hazard to bees. A continuous exposure to 300 ppB SO/sub 2/ was detrimental to caged worker honey bees; and, a mean temperature of 27.2/sup 0/C was 75.7% more toxic than the same dosage at 16.7/sup 0/C. Worker bee lifespans exposed to 300 ppB SO/sub 2/ at 16.7/sup 0/C were shortened 13.5% and 79%, respectively, compared to unexposed bees. Therefore, both dosage and temperature exert direct effects on the hazards to bees. PART II: The status of the apicultural industry in Imperial County, California, was outlined giving a short characterization of the area in relation to the apicultural industry. Agriculture utilizes 500,000 intensely farmed acres which generated a 11-year average income of $370 million. Over 40 agricultural commodities are produced. The apicultural industry is intimately involved in 25% of the total gross agricultural income. In addition, most of the flora growing in the desert community which comprises the remainder of the county are very important to honey bees by providing sustaining nectar and/or pollen for brood rearing. The bee foraged flora provides substantial bee forage when colonies are located outside of the agriculutral area. It is concluded that geothermal resource development in the Imperial Valley is contemplated to have minimal effects on the apicultural industry.

Atkins, E.L.

1979-04-01T23:59:59.000Z

418

Session 10: The Cerro Prieto Geothermal Field, Mexico: The Experiences Gained from Its Exploration and Development  

DOE Green Energy (OSTI)

The Cerro Prieto case study demonstrated the value of a multidisciplinary effort for exploring and developing a geothermal field. There was no problem in recognizing the geothermal potential of the Cerro Prieto area because of the many obvious surface manifestations. However, the delineation of the geothermal reservoir at depth was not so straightforward. Wells drilled near the abundant surface manifestations only produced fluids of relatively low enthalpy. Later it was determined that these zones of high heat loss corresponded to discharge areas where faults and fractures allowed thermal fluids to leak to the surface, and not to the main geothermal reservoir. The early gravity and seismic refraction surveys provided important information on the general structure of the area. Unaware of the existence of a higher density zone of hydrothermally altered sediments capping the geothermal reservoir, CFE interpreted a basement horst in the western part of the field and hypothesized that the bounding faults were controlling the upward flow of thermal fluids. Attempting to penetrate the sedimentary column to reach the ''basement horst'', CFE discovered the {alpha} geothermal reservoir (in well M-5). The continuation of the geothermal aquifer (actually the {beta} reservoir) east of the original well field was later confirmed by a deep exploration well (M-53). The experience of Cerro Prieto showed the importance of chemical ratios, and geothermometers in general, in establishing the subsurface temperatures and fluid flow patterns. Fluid chemical and isotopic compositions have also been helpful to determine the origin of the fluids, fluid-production mechanisms and production induced effects on the reservoir.

Lippman, M.J.; Goldstein, N.E.; Halfman, S.E.; Witherspoon, P.A.

1983-12-01T23:59:59.000Z

419

Geothermometry At Fish Lake Valley Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Fish Lake Valley Area (DOE GTP) Exploration...

420

Thermochronometry At Fish Lake Valley Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Thermochronometry At Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermochronometry At Fish Lake Valley Area...

Note: This page contains sample records for the topic "valley geothermal field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Hydroprobe At Gabbs Valley Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Hydroprobe At Gabbs Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Hydroprobe At Gabbs Valley Area (DOE GTP) Exploration...

422

Water Sampling At International Geothermal Area, Philippines (Wood, 2002) |  

Open Energy Info (EERE)

Water Sampling At International Geothermal Area Water Sampling At International Geothermal Area Philippines (Wood, 2002) Exploration Activity Details Location International Geothermal Area Philippines Exploration Technique Water Sampling Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes Geothermal fluids from hot springs and wells have been sampled from a number of locations, including: 1) the North Island of New Zealand (three sets of samples from three different years) and the South Island of New Zealand (1 set of samples); 2) the Cascades of Oregon; 3) the Harney, Alvord Desert and Owyhee geothermal areas of Oregon; 4) the Dixie Valley and Beowawe fields in Nevada; 5) Palinpiiion, the Philippines; 6) the Salton Sea and Heber geothermal fields of southern California; and 7) the

423

The Impact of Injection on Seismicity at The Geyses, CaliforniaGeothermal Field  

DOE Green Energy (OSTI)

Water injection into geothermal systems has often become arequired strategy to extended and sustain production of geothermalresources. To reduce a trend of declining pressures and increasingnon-condensable gas concentrations in steam produced from The Geysers,operators have been injecting steam condensate, local rain and streamwaters, and most recently treated wastewater piped to the field fromneighboring communities. If geothermal energy is to provide a significantincrease in energy in the United States (US Department of Energy (DOE)goal is 40,000 megawatts by 2040), injection must play a larger role inthe overall strategy, i.e., enhanced geothermal systems, (EGS). Presentedin this paper are the results of monitoring microseismicity during anincrease in injection at The Geysers field in California using data froma high-density digital microearthquake array. Although seismicity hasincreased due to increased injection it has been found to be somewhatpredicable, thus implying that intelligent injection control may be ableto control large increases in seismicity.

Majer, Ernest L.; Peterson, John E.

2006-09-25T23:59:59.000Z

424

Tough2/PC application simulation project for Heber geothermal field, California, a progress report  

SciTech Connect

A numerical simulation model for the Heber geothermal field in Southern California is being developed under a technology transfer agreement between the Department of Energy/Lawrence Berkeley National Laboratory (LBNL) and the California Department of Conservation, Division of Oil, Gas, and Geothermal Resources (DOGGR). The main objectives of the cooperation are (1) to train DOGGR personnel in the use of the TOUGH2PC computer code; and (2) to develop a module compatible with TOUGH2 to investigate the effects of production/injection operations on the ground surface subsidence-rebound phenomenon observed in the Heber geothermal field. Initial-state calibration (undisturbed system) runs are being conducted to calibrate the model.

Boardman, Timothy S.; Khan, M. Ali; Antunez, Emilio