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1

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

2

Development Wells At Coso Geothermal Area (1985) | Open Energy...  

Open Energy Info (EERE)

Development Wells At Coso Geothermal Area (1985) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Development Wells Activity Date 1985 Usefulness...

3

Self Potential At Coso Geothermal Area (2006) | Open Energy Informatio...  

Open Energy Info (EERE)

Self Potential At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Self Potential Activity Date 2006 Usefulness not...

4

Telluric Survey At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (1977) Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Telluric Survey At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Telluric Survey Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes Telluric current mapping outlined major resistivity lows associated with conductive valley fill of the Rose Valley basin, the Coso Basin, and the northern extension of the Coso Basin east of Coso Hot Springs. A secondary resistivity low with a north-south trend runs through the Coso Hot Springs--Devil's Kitchen geothermal area.

5

Ground Gravity Survey At Coso Geothermal Area (1980) | Open Energy...  

Open Energy Info (EERE)

Activity Details Location Coso Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1980 Usefulness not indicated DOE-funding Unknown Notes The...

6

Acoustic Logs At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (1977) Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Acoustic Logs At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Acoustic Logs Activity Date 1977 Usefulness not indicated DOE-funding Unknown Notes Acoustic logs indicate fractured rock and potentially permeable zones. References Galbraith, R. M. (1 May 1978) Geological and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Goranson, C.; Schroeder, R. (1 June 1978) Static downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Retrieved from "http://en.openei.org/w/index.php?title=Acoustic_Logs_At_Coso_Geothermal_Area_(1977)&oldid=510216"

7

Gamma Log At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

Gamma Log At Coso Geothermal Area (1977) Gamma Log At Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Gamma Log At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Gamma Log Activity Date 1977 Usefulness not indicated DOE-funding Unknown Notes extensive geophysical logging surveys were conducted: natural gamma and neutron porosity logs indicate gross rock type References Galbraith, R. M. (1 May 1978) Geological and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Goranson, C.; Schroeder, R. (1 June 1978) Static downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Retrieved from "http://en.openei.org/w/index.php?title=Gamma_Log_At_Coso_Geothermal_Area_(1977)&oldid=510780"

8

Electrical Resistivity At Coso Geothermal Area (1972) | Open Energy  

Open Energy Info (EERE)

Electrical Resistivity At Coso Geothermal Area (1972) Electrical Resistivity At Coso Geothermal Area (1972) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Electrical Resistivity At Coso Geothermal Area (1972) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date 1972 Usefulness useful DOE-funding Unknown Exploration Basis Identify drilling sites for exploration Notes Electrical resistivity studies outline areas of anomalously conductive ground that may be associated with geothermal activity and assist in locating drilling sites to test the geothermal potential. References Ferguson, R. B. (1 June 1973) Progress report on electrical resistivity studies, COSO Geothermal Area, Inyo County, California

9

Geothermometry At Coso Geothermal Area (1978) | Open Energy Information  

Open Energy Info (EERE)

Geothermometry At Coso Geothermal Area (1978) Geothermometry At Coso Geothermal Area (1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Coso Geothermal Area (1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermometry Activity Date 1978 Usefulness useful DOE-funding Unknown Exploration Basis Determine fluid origin in two exploratory wells Notes Collected water from original coso hot springs well (1967) and CGEH No. 1. and completed chemical analysis to determine fluid origin. The surface expression of fumarole and acid sulfate pools and shallow steam wells gives a false indication of an extensive vapor dominated system because upward convecting, boiling alkaline-chloride waters do not reach the surface.

10

Numerical Modeling At Coso Geothermal Area (2007) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2007) Coso Geothermal Area (2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Numerical Modeling At Coso Geothermal Area (2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 2007 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the importance of fracture networks for fluid migration in tectonically active regions such as the Coso Range. Notes A finite element analysis is used 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

11

Isotopic Analysis- Fluid At Coso Geothermal Area (1982) | Open Energy  

Open Energy Info (EERE)

Analysis- Fluid At Coso Geothermal Area (1982) Analysis- Fluid At Coso Geothermal Area (1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Coso Geothermal Area (1982) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1982 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine recharge for the system Notes Thirty-nine water samples were collected from the Coso geothermal system and vicinity and were analyzed for major chemical constituents and deltaD and delta18O. Non-thermal ground waters from the Coso Range were found to be isotopically heavier than non-thermal ground waters from the Sierra Nevada to the west. The deltaD value for the deep thermal water at Coso is

12

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"

13

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

14

Conceptual Model At Coso Geothermal Area (1990) | Open Energy Information  

Open Energy Info (EERE)

Conceptual Model At Coso Geothermal Area (1990) Conceptual Model At Coso Geothermal Area (1990) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Conceptual Model Activity Date 1990 Usefulness useful DOE-funding Unknown Exploration Basis To develop an understanding of the fracture hydrology of the Coso Mountains crystalline terrain and its hydrologic connection to regional groundwater and thermal source Notes An interpreted, conceptually balanced regional cross section that extends from the Sierra Nevada through the geothermal reservoir to the Panamint Mountains is presented. The cross section is constrained by new reflection and refraction seismic data, gravity and magnetic modeling, drilling data from the geothermal reservoir, and published regional geologic mapping. The

15

Core Analysis At Coso Geothermal Area (1979) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (1979) Coso Geothermal Area (1979) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Core Analysis Activity Date 1979 Usefulness useful DOE-funding Unknown Exploration Basis Compare microcracks between Coso and Raft River geothermal areas Notes Microcracks were observed in core samples from Coso. Both permeability and electrical conductivity were measured for a suite of samples with a range of microcracks characteristics. A partial set of samples were collected to study migration of radioactive elements. References Simmons, G.; Batzle, M. L.; Shirey, S. (1 April 1979) Microcrack technology. Progress report, 1 October 1978--31 March 1979 Retrieved from "http://en.openei.org/w/index.php?title=Core_Analysis_At_Coso_Geothermal_Area_(1979)&oldid=473689

16

Isotopic Analysis- Fluid At Coso Geothermal Area (1990) | Open Energy  

Open Energy Info (EERE)

Analysis- Fluid At Coso Geothermal Area (1990) Analysis- Fluid At Coso Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Coso Geothermal Area (1990) Exploration Activity Details Location Coso 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 Indian Wells Valley, Inyo and Kern Counties, California. Supplement.

17

Reflection Survey At Coso Geothermal Area (1989) | Open Energy Information  

Open Energy Info (EERE)

Reflection Survey At Coso Geothermal Area (1989) Reflection Survey At Coso Geothermal Area (1989) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Coso Geothermal Area (1989) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Reflection Survey Activity Date 1989 Usefulness useful DOE-funding Unknown Exploration Basis Determine the crustul structure of the Coso geothermal system Notes In mid-1989 the authors designed and collected four seismic reflection/refraction profiles that addressed the crustal structure of the Coso geothermal field. The two main east-west and north-south profiles crossed at the southeastern most base of Sugar Loaf Mountain. Both in-line and cross-line Vibroseis and explosion data were recorded on each of these

18

Image Logs At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Logs At Coso Geothermal Area (2004) Logs At Coso Geothermal Area (2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Image Logs At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Image Logs Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis EGS potential of Coso Geothermal Region Notes During the second year of this project, wellbore logs and stress data were acquired in a new production well drilled in the Coso Geothermal Field, 38C-9. The image analysis results include the discrimination of natural from drilling induced fractures in wellbore image data, natural fracture characterization, and wellbore failure analysis References Sheridan, J.; Hickman, S.H. (1 January 2004) IN SITU STRESS,

19

Stress Test At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Stress Test At Coso Geothermal Area (2004) Stress Test At Coso Geothermal Area (2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Stress Test At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Stress Test Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis EGS potential of Coso Geothermal Region Notes A hydraulic fracturing stress test at 3,703 feet TVD was used to constrain a normal faulting and strike-slip faulting stress tensor for this reservoir. The shear and normal stresses resolved on the fracture and fault planes were calculated and used to identify the subset of critically stressed planes that act to maintain permeability within the Coso Geothermal Field. References

20

Thermal Gradient Holes At Coso Geothermal Area (1976) | Open Energy  

Open Energy Info (EERE)

Thermal Gradient Holes At Coso Geothermal Area (1976) Thermal Gradient Holes At Coso Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At Coso Geothermal Area (1976) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermal Gradient Holes Activity Date 1976 Usefulness useful DOE-funding Unknown Notes Temperatures have been obtained to depths up to 133 m in 22 boreholes with measurements being made at least four times in each borehole. Geothermal gradients ranged from 240C/km to 450 0C/km. References Combs, J. (1 December 1976) Heat flow determinations and implied thermal regime of the Coso geothermal area, California Retrieved from "http://en.openei.org/w/index.php?title=Thermal_Gradient_Holes_At_Coso_Geothermal_Area_(1976)&oldid=511217"

Note: This page contains sample records for the topic "details location coso" 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

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

22

Magnetotellurics At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Magnetotellurics At Coso Geothermal Area (2004) Magnetotellurics At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Magnetotellurics Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis EGS potential of Coso Geothermal Region Notes A dense grid of magnetotelluric (MT) stations plus contiguous bipole array profiling centered over the east flank of the Coso geothermal system is being acquired. Acquiring good quality MT data in producing geothermal systems is a challenge due to production related electromagnetic (EM) noise and, in the case of Coso, due to proximity of a regional DC intertie power transmission line. To achieve good results, a remote reference completely outside the influence of the dominant source of EM noise must be

23

DC Resistivity Survey (Schlumberger Array) At Coso Geothermal Area (1977) |  

Open Energy Info (EERE)

DC Resistivity Survey (Schlumberger Array) At Coso DC Resistivity Survey (Schlumberger Array) At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique DC Resistivity Survey (Schlumberger Array) Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes 18 USGS Schlumberger soundings and 6 Schlumberger soundings by Furgerson (1973) were plotted and automatically processed and interpreted References Jackson, D.B. ODonnell, J.E.; Gregory, D. I. (1 January 1977) Schlumberger soundings, audio-magnetotelluric soundings and telluric mapping in and around the Coso Range, California Retrieved from "http://en.openei.org/w/index.php?title=DC_Resistivity_Survey_(Schlumberger_Array)_At_Coso_Geothermal_Area_(1977)&oldid=591389

24

Isotopic Analysis- Rock At Coso Geothermal Area (1984) | Open Energy  

Open Energy Info (EERE)

Analysis- Rock At Coso Geothermal Area (1984) Analysis- Rock At Coso Geothermal Area (1984) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Coso Geothermal Area (1984) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Rock Activity Date 1984 Usefulness not indicated DOE-funding Unknown Exploration Basis To analyze evidence for crustal interaction and compositional zonation in the source regions of Pleistocene basaltic and rhyolitic magmas of the Coso volcanic field Notes The isotopic compositions of Pb and Sr in Pleistocene basalt, high-silica rhyolite, and andesitic inclusions in rhyolite of the Coso volcanic field indicate that these rocks were derived from different levels of compositionally zoned magmatic systems. The two earliest rhyolites probably

25

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

26

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

27

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.

28

Isotopic Analysis- Fluid At Coso Geothermal Area (2007) | Open Energy  

Open Energy Info (EERE)

Isotopic Analysis- Fluid At Coso Geothermal Area (2007) Isotopic Analysis- Fluid At Coso Geothermal Area (2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Coso Geothermal Area (2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 2007 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the location of the heat source Notes Fluids have been sampled from 9 wells and 2 fumaroles from the East Flank of the Coso hydrothermal system with a view to identifying, if possible, the location and characteristics of the heat source inflows into this portion of the geothermal field. Preliminary results show that there has been extensive vapor loss in the system, most probably in response to

29

Numerical Modeling At Coso Geothermal Area (1995) | Open Energy Information  

Open Energy Info (EERE)

Numerical Modeling At Coso Geothermal Area (1995) Numerical Modeling At Coso Geothermal Area (1995) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Numerical Modeling At Coso Geothermal Area (1995) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 1995 Usefulness useful DOE-funding Unknown Exploration Basis Locate an active fault zone by analyzing seismic guided waves from microearthquake data Notes An active fault zone was located in the Coso geothermal field, California, by identifying and analyzing a fault-zone trapped Rayleigh-type guided wave from microearthquake data. The wavelet transform is employed to characterize guided-wave's velocity-frequency dispersion, and numerical methods are used to simulate the guided-wave propagation. The modeling

30

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.

31

Seismicity of the Coso Range, California | Open Energy Information  

Open Energy Info (EERE)

of the Coso Range, California of the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismicity of the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A 16-station seismographic network, approximately 40 km north-south by 30 km east-west, was installed in the Coso Range, California, in September 1975 as part of a geological and geophysical assessment of the geothermal resource potential of range. During the first 2 years of network operations, 4216 local earthquakes (0.5< or =m< or =3.9) defined zones of seismicity that strike radially outward from a Pleistocene rhyolite field located near the center of the Coso Range. Most earthquakes were located in zones showing a general northwest trend across the range.

32

Heat flow and microearthquake studies, Coso Geothermal Area, China Lake,  

Open Energy Info (EERE)

and microearthquake studies, Coso Geothermal Area, China Lake, and microearthquake studies, Coso Geothermal Area, China Lake, California. Final report Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Heat flow and microearthquake studies, Coso Geothermal Area, China Lake, California. Final report Details Activities (2) Areas (1) Regions (0) Abstract: The present research effort at the Coso Geothermal Area located on the China Lake Naval Weapons Center, China Lake, California, was concerned with: (1) heat flow studies and (2) microearthquake studies associated with the geothermal phenomena in the Coso Hot Springs area. The sites for ten heat flow boreholes were located primarily using the available seismic ground noise and electrical resistivity data. Difficulty was encountered in the drilling of all of the holes due to altered, porous,

33

Image Logs At Coso Geothermal Area (2011) | Open Energy Information  

Open Energy Info (EERE)

Image Logs At Coso Geothermal Area (2011) Image Logs At Coso Geothermal Area (2011) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Image Logs At Coso Geothermal Area (2011) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Image Logs Activity Date 2011 Usefulness useful DOE-funding Unknown Exploration Basis Determine crustul stress heterogeneity Notes Borehole induced structures in image logs of wells from the Coso Geothermal Field (CGF) 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 km

34

Teleseismic-Seismic Monitoring At Coso Geothermal Area (2011-2012) | Open  

Open Energy Info (EERE)

2012) 2012) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (2011-2012) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 2011 - 2012 Usefulness not indicated DOE-funding Unknown Exploration Basis Map hydraulic structure within the field from seismic data Notes 2011: 16 years of seismicity were analyzed to improve hypocentral locations and simultaneously invert for the seismic velocity structure within the Coso Geothermal Field (CGF). The CGF has been continuously operated since the 1980's. 2012: 14 years of seismicity in the Coso Geothermal Field were relocated using differential travel times and simultaneously invert for

35

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

36

Refraction Survey At Coso Geothermal Area (1989) | Open Energy Information  

Open Energy Info (EERE)

Refraction Survey At Coso Geothermal Area (1989) Refraction Survey At Coso Geothermal Area (1989) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Refraction Survey Activity Date 1989 Usefulness useful DOE-funding Unknown Exploration Basis Determine the crustul structure of the Coso geothermal system Notes In mid-1989 the authors designed and collected four seismic reflection/refraction profiles that addressed the crustal structure of the Coso geothermal field. The two main east-west and north-south profiles crossed at the southeastern most base of Sugar Loaf Mountain. Both in-line and cross-line Vibroseis and explosion data were recorded on each of these approximately 12-mi lines. This was accomplished with the simultaneous operation of two 1024-channel sign bit recording systems while four

37

Isotopic Analysis- Rock At Coso Geothermal Area (1997) | Open Energy  

Open Energy Info (EERE)

Rock At Coso Geothermal Area (1997) Rock At Coso Geothermal Area (1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Coso Geothermal Area (1997) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Rock Activity Date 1997 Usefulness useful DOE-funding Unknown Exploration Basis Determine a major lithospheric boundary Notes Sr and Nd isotope ratios of Miocene-Recent basalts in eastern California, when screened for crustal contamination, vary dramatically and indicate the presence of a major lithospheric boundary that is not obvious from surface geology. Isotope ratios from the Coso field form a bull's-eye pattern with very low 87Sr/86Sr (0.7033) centered just south of the geothermal area. The

38

Attenuation structure of Coso geothermal area, California, from wave pulse  

Open Energy Info (EERE)

structure of Coso geothermal area, California, from wave pulse structure of Coso geothermal area, California, from wave pulse widths Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Attenuation structure of Coso geothermal area, California, from wave pulse widths Details Activities (1) Areas (1) Regions (0) Abstract: Pulse width data are used to invert for attenuation structure in the Coso geothermal area, California. The dataset consists of pulse width measurements of 838 microseismic events recorded on a seismic array of 16 downhole stations between August 1993 and March 1994. The quality factor Q correlates well with surface geology and surface heat flow observations. A broad region of low Q (≈ 30 to 37) is located at 0.5 to 1.2 km in depth below Devil's Kitchen, Nicol Prospects, and Coso Hot Springs. A vertical,

39

Well Log Techniques At Coso Geothermal Area (1985) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (1985) Coso Geothermal Area (1985) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Well Log Techniques Activity Date 1985 Usefulness not indicated DOE-funding Unknown Exploration Basis Impact of long term testing on the well pressure Notes The downhole pressure monitoring equipment for each well included a stainless steel pressure chamber attached to a 0.25 inch stainless steel capillary tubing. The surface end of the capillary tubing was connected to a Paroscientific quartz pressure trandsducer. References Sanyal, S.; Menzies, A.; Granados, E.; Sugine, S.; Gentner, R. (20 January 1987) Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Retrieved from "http://en.openei.org/w/index.php?title=Well_Log_Techniques_At_Coso_Geothermal_Area_(1985)&oldid=600462

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Conceptual Model At Coso Geothermal Area (2005) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2005) Coso Geothermal Area (2005) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Conceptual Model Activity Date 2005 Usefulness not indicated DOE-funding Unknown Exploration Basis Develop a conceptual model of the Coso area Notes 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

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While these samples are representative of the content of NLEBeta,
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41

Geothermal Literature Review At Coso Geothermal Area (1985) | Open Energy  

Open Energy Info (EERE)

5) 5) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermal Literature Review Activity Date 1985 Usefulness not indicated DOE-funding Unknown Exploration Basis Need to develop a reservoir model for Coso Notes Analysis of complex geothermal system was done by looking at the available data on the Coso Geothermal Field References Austin, C.F.; Durbin, W.F. (1 September 1985) Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Literature_Review_At_Coso_Geothermal_Area_(1985)&oldid=510801" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers

42

Progress report on electrical resistivity studies, COSO Geothermal Area,  

Open Energy Info (EERE)

Progress report on electrical resistivity studies, COSO Geothermal Area, Progress report on electrical resistivity studies, COSO Geothermal Area, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Progress report on electrical resistivity studies, COSO Geothermal Area, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: The first phase of an electrical geophysical survey of the Coso Geothermal Area is described. The objective of the survey was to outline areas of anomalously conductive ground that may be associated with geothermal activity and to assist in locating drilling sites to test the geothermal potential. Author(s): Ferguson, R. B. Published: Publisher Unknown, 6/1/1973 Document Number: Unavailable DOI: Unavailable Source: View Original Report Electrical Resistivity At Coso Geothermal Area (1972)

43

Reflection Survey At Coso Geothermal Area (2008) | Open Energy Information  

Open Energy Info (EERE)

At Coso Geothermal Area (2008) At Coso Geothermal Area (2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Coso Geothermal Area (2008) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Reflection Survey Activity Date 2008 Usefulness not indicated DOE-funding Unknown Exploration Basis A reflection survey was done to analyze the brittle upper plate structure revealed by reflection seismic data Notes The relationships between upper crustal faults, the brittle-ductile transition zone, and underlying magmatic features imaged by multifold seismic reflection data are consistent with the hypothesis that the Coso geothermal field, which lies within an extensional step-over between dextral faults, is a young, actively developing metamorphic core complex.

44

Shear-wave splitting and reservoir crack characterization: the Coso  

Open Energy Info (EERE)

Shear-wave splitting and reservoir crack characterization: the Coso Shear-wave splitting and reservoir crack characterization: the Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Shear-wave splitting and reservoir crack characterization: the Coso geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: This paper aims to improve current understanding of the subsurface fracture system in the Coso geothermal field, located in east-central California. The Coso reservoir is in active economic development, so that knowledge of the subsurface fracture system is of vital importance for an accurate evaluation of its geothermal potential and day-to-day production. To detect the geometry and density of fracture systems we applied the shear-wave splitting technique to a large number of

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Ground Gravity Survey At Coso Geothermal Area (1990) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (1990) Coso Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Coso Geothermal Area (1990) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis To identify features related to the heat source and to seek possible evidence for an underlying magma chamber Notes 2D and 3D gravity modeling was done using gridded Bouguer gravity data covering a 45 by 45 km region over the Coso geothermal area. Isostatic and terrain corrected Bouguer gravity data for about 1300 gravity stations were obtained from the US Geological Survey. After the data were checked, the gravity values were gridded at 1 km centers for the area of interest

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Static Temperature Survey At Coso Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Static Temperature Survey At Coso Geothermal Area Static Temperature Survey At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Static Temperature Survey Activity Date 1977 Usefulness not indicated DOE-funding Unknown Notes Temperature logs were taken during and after drilling: Results: Convective heat flow and temperatures greater than 350 F appear to occur only along an open fracture system encountered between depths of 1850 and 2775 feet. Temperature logs indicate a negative thermal gradient below 3000 feet. Water chemistry indicates that this geothermal resource is a hot-water rather than a vapor-dominated system. References Galbraith, R. M. (1 May 1978) Geological and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA,

47

Aeromagnetic and gravity surveys in the Coso Range, California | Open  

Open Energy Info (EERE)

and gravity surveys in the Coso Range, California and gravity surveys in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Aeromagnetic and gravity surveys in the Coso Range, California Details Activities (2) Areas (1) Regions (0) Abstract: The effect of an underlying magma reservoir cannot be identified within the complex gravity pattern in the Coso Range, California. Rather, linear gravity contours, which suggest a regional tectonic origin, enclose the location of most of the volcanic activity of the Coso Range. Faults along the edges of northwest trending, magnetic blocks probably provided paths of minimum resistance to the ascending viscous magma that was extruded as rhyolite domes. Dense, magnetic rocks associated with a complex mafic pluton 9 km in diameter form a relatively impermeable north border of

48

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

Open Energy Info (EERE)

Fault Mapping At Coso Geothermal Area (1980) Fault Mapping At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fault Mapping At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fault Mapping Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis To determine the Late Cenozoic volcanism, geochronology, and structure of the Coso Range Notes This system apparently is heated by a reservoir of silicic magma at greater than or equal to 8-km depth, itself produced and sustained through partial melting of crustal rocks by thermal energy contained in mantle-derived basaltic magma that intrudes the crust in repsonse to lithospheric extension. References Duffield, W.A.; Bacon, C.R.; Dalrymple, G.B. (10 May 1980) Late

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Stepout-Deepening Wells At Coso Geothermal Area (1986) | Open Energy  

Open Energy Info (EERE)

Stepout-Deepening Wells At Coso Geothermal Area (1986) Stepout-Deepening Wells At Coso Geothermal Area (1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Step-out Well At Coso Geothermal Area (1986) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Step-out Well Activity Date 1986 Usefulness not indicated DOE-funding Unknown Notes A step-out exploration/production well drilled in 1986 to a depth of 6553 ft located several miles south of the Devil's Kitchen region along the identified north-south feature produced fluids with a temperature greater than 640 F. References Austin, C.F.; Bishop, B.P.; Moore, J. (1 May 1987) Structural interpretation of Coso Geothermal field, Inyo County, California Retrieved from "http://en.openei.org/w/index.php?title=Stepout-Deepening_Wells_At_Coso_Geothermal_Area_(1986)&oldid=687864"

50

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"

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Water Sampling At Coso Geothermal Area (1977-1978) | Open Energy  

Open Energy Info (EERE)

Water Sampling At Coso Geothermal Area (1977-1978) Water Sampling At Coso Geothermal Area (1977-1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling At Coso Geothermal Area (1977-1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Water Sampling 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

52

Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) |  

Open Energy Info (EERE)

Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) (Redirected from Water-Gas Samples At Coso Geothermal Area (2004)) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2004 Usefulness useful DOE-funding Unknown Exploration Basis To determine effectiveness of FIS for geothermal exploration Notes In order to test FIS for geothermal exploration, drill chips were analyzed from Coso well 83-16, which were selected at 1000 ft intervals by Joseph Moore. Sequential crushes done by our CFS (crushfast-scan) method (Norman

53

Long-Wave Infrared At Coso Geothermal Area (1968-1971) | Open Energy  

Open Energy Info (EERE)

Long-Wave Infrared At Coso Geothermal Area (1968-1971) Long-Wave Infrared At Coso Geothermal Area (1968-1971) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Long-Wave Infrared At Coso Geothermal Area (1968-1971) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Long-Wave Infrared Activity Date 1968 - 1971 Usefulness useful DOE-funding Unknown Exploration Basis Fumarolic and hot springs activity Notes 8- to 14-micrometer IR imagery has value in delineating the typical arcuate structural patterns 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=Long-Wave_Infrared_At_Coso_Geothermal_Area_(1968-1971)&oldid=473747"

54

Modeling-Computer Simulations At Coso Geothermal Area (1999) | Open Energy  

Open Energy Info (EERE)

Modeling-Computer Simulations At Coso Geothermal Area (1999) Modeling-Computer Simulations At Coso Geothermal Area (1999) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Coso Geothermal Area (1999) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Modeling-Computer Simulations Activity Date 1999 Usefulness not indicated DOE-funding Unknown Exploration Basis To analyze attenuation and source properties Notes A multiple-empirical Green's function method was used to determine source properties of small (M -0.4 to 1.3) earthquakes and P-wave and S-wave attenuation at the Coso Geothermal Field. Source properties of a previously identified set of clustered events from the Coso geothermal region are first analyzed using an empirical Green's function (EGF) method.

55

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

56

Chemical and isotopic characteristics of the coso east flank hydrothermal  

Open Energy Info (EERE)

isotopic characteristics of the coso east flank hydrothermal isotopic characteristics of the coso east flank hydrothermal fluids: implications for the location and nature of the heat source Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Chemical and isotopic characteristics of the coso east flank hydrothermal fluids: implications for the location and nature of the heat source Details Activities (1) Areas (1) Regions (0) Abstract: Fluids have been sampled from 9 wells and 2 fumaroles from the East Flank of the Coso hydrothermal system with a view to identifying, if possible, the location and characteristics of the heat source inflows into this portion of the geothermal field. Preliminary results show that there has been extensive vapor loss in the system, most probably in response to

57

Geothermal Literature Review At Coso Geothermal Area (1984) | Open Energy  

Open Energy Info (EERE)

Geothermal Literature Review At Coso Geothermal Area Geothermal Literature Review At Coso Geothermal Area (1984) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermal Literature Review Activity Date 1984 Usefulness not indicated DOE-funding Unknown Exploration Basis To characterize the magma beneath melt zones Notes The melt zones of volcanic clusters were analyzed with recent geological and geophysical data for five magma-hydrothermal systems. These 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 magma occurrences Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Literature_Review_At_Coso_Geothermal_Area_(1984)&oldid=510800"

58

Thermal Gradient Holes At Coso Geothermal Area (1974) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (1974) Coso Geothermal Area (1974) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermal Gradient Holes Activity Date 1974 Usefulness useful DOE-funding Unknown Exploration Basis Use heat flow studies for the first time at Coso to indicate the presence or absence of abnormal heat Notes Located 10 sites for heat flow boreholes using available seismic ground noise and electrical resistivity data; data collected from 9 of 10; thermal conductivity measurements were completed using both the needle probe technique and the divided bar apparatus with a cell arrangement. In the upper few hundred meters of the subsurface heat is being transferred by a conductive heat transfer mechanism with a value of ~ 15 µcal/cm2sec; the background heat flow is ~ 3.5 HFU.

59

Teleseismic-Seismic Monitoring At Coso Geothermal Area (2005) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (2005) Coso Geothermal Area (2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (2005) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 2005 Usefulness not indicated DOE-funding Unknown Exploration Basis More detailed analysis of microearthquakes over a longer period of time Notes The permanent 18-station network of three-component digital seismometers at the seismically active Coso geothermal area, California, provides high-quality microearthquake (MEQ) data that are well suited to investigating temporal variations in structure related to processes within the geothermal reservoir. A preliminary study (Julian, et al. 2003; Julian

60

DC Resistivity Survey (Dipole-Dipole Array) At Coso Geothermal Area (1977)  

Open Energy Info (EERE)

Dipole Array) At Coso Geothermal Area (1977) Dipole Array) At Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: DC Resistivity Survey (Dipole-Dipole Array) At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique DC Resistivity Survey (Dipole-Dipole Array) Activity Date 1977 Usefulness useful regional reconnaissance DOE-funding Unknown Notes Detailed electrical resistivity survey for a 54 line-km. This survey has defined a bedrock resistivity low at least 4 sq mi (10 sq km) in extent; survey data indicate that a 10 to 20 ohm-meter zone extends from near surface to a depth greater than 750 meters. References Fox, R. C. (1 May 1978) Dipole-dipole resistivity survey of a portion of the Coso Hot Springs KGRA, Inyo County, California

Note: This page contains sample records for the topic "details location coso" 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.


61

Geothermometry At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

Geothermometry At Coso Geothermal Area (1980) Geothermometry At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermometry Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis Fluid temperature of feed water Notes Cation and sulfate isotope geothermometers indicate that the reservoir feeding water to the Coso Hot Spring well has a temperature of about 240 -250 C, and the reservoir feeding the CGEH well has a temperature of about 205 C. The variation in the chemical composition of water from the two wells suggests a model in which water-rock chemical equilibrium is maintained as a convecting solution cools from about 245-205 C by conductive heat loss. References Fournier, R.O.; Thompson, J.M.; Austin, C.F. (10 May 1980)

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Analytical Modeling At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Modeling At Coso Geothermal Area (1980) Modeling At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Analytical Modeling At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Analytical Modeling Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis 1) Characterize a magma source. 2) To conduct reservoir modeling of a steam reservoir. Notes 1) Closed-form analytical solutions for the conduction heat transfer from various idealized magma geometries (dikes, sills, and spheres) are obtained using either the Schwarz-Christoffel transformation theorem (dikes and sills) or the 'method of images' with superposition (spheres). Comparison of these analytically determined heat flux distributions with

63

Conceptual Model At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

Conceptual Model At Coso Geothermal Area (1980) Conceptual Model At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Conceptual Model Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis 1) Estimate thermal regime and thermal potential of the system. 2) Use field mapping to develop a model of the reservoir system. Notes 1) The seismograms of 44 events recorded by the telemetered array and nine events by the Centipede array were analyzed using the reduced spectral ratio technique to determine the differential attenuation factor delta t* for the events recorded with the highest signal-to-noise ratio. 2) Arcuate faults in the Coso Range are interpreted to have been produced by the regional stress field rather than to have been of volcanogenic origin.

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Tracer Testing At Coso Geothermal Area (1993) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (1993) Tracer Testing At Coso Geothermal Area (1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (1993) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 1993 Usefulness useful DOE-funding Unknown Exploration Basis To determine the steam and water mass flow rate Notes The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of

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Paleomagnetic Measurements At Coso Geothermal Area (2006) | Open Energy  

Open Energy Info (EERE)

Paleomagnetic Measurements At Coso Geothermal Area (2006) Paleomagnetic Measurements At Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Paleomagnetic Measurements At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Paleomagnetic Measurements Activity Date 2006 Usefulness not indicated DOE-funding Unknown Exploration Basis Analyze fault block kinematics at a releasing stepover of the Eastern California shear zone to determine the partitioning of rotation style Notes Rotations paleomagnetically relative to two different reference frames were measured. At two localities, the secular variation were averaged through sedimentary sections to reveal rotation or its absence relative to paleogeographic north. Where sediments are lacking, a really-extensive lava

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Tracer Testing At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (2006) Tracer Testing At Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis To characterize the flow patterns of fluid injected into well 68-20RD. Notes A conservative liquid phase tracer, 2-naphthalene sulfonate, and a two-phase tracer, ethanol, were injected into well 68-20RD. Surrounding production wells were sampled over the subsequent 125 days and analyzed for the two tracers. The results demonstrate the efficacy of the simultaneous use of liquid-phase and two-phase tracers in fluid-depleted geothermal

67

Fluid Inclusion Analysis At Coso Geothermal Area (2004) | Open Energy  

Open Energy Info (EERE)

Fluid Inclusion Analysis At Coso Geothermal Area Fluid Inclusion Analysis At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis 1) To determine if analyses of fluid propene and propane species in fluid inclusions can be used to interpret fluid type, history, or process. 2) To evaluate the geology and thermal history of the East Flank, in order to better understand how the rocks will behave during hydro-fracturing. Notes 1) Analyses were performed on drill cuttings at 20ft intervals from four Coso geothermal wells. Two wells are good producers, one has cold-water entrants in the production zone, and the fourth is a non-producer. The ratios show distinct differences between producing and the non-producing

68

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

69

Compound and Elemental Analysis At Coso Geothermal Area (2004) | Open  

Open Energy Info (EERE)

Coso Geothermal Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Compound and Elemental Analysis Activity Date 2004 Usefulness useful DOE-funding Unknown Notes In order to test FIS for geothermal exploration, drill chips from Coso well 83-16 were analyzed, which were selected at 1000 ft intervals by Joseph Moore. Sequential crushes done by the CFS (crushfast-scan) method (Norman 1996) show that chips have a high density of homogeneous fluid inclusions. Analyses were averaged and plotted verses depth (Fig. 4), and interpreted. Fluid inclusion gas analyses done on vein minerals from drill hole 68-6 that were earlier analyzed (Adams 2000) were plotted for comparison in order to confirm that similar analyses are obtained from chips and vein

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Thermochronometry At Coso Geothermal Area (2003) | Open Energy Information  

Open Energy Info (EERE)

Thermochronometry At Coso Geothermal Area (2003) Thermochronometry At Coso Geothermal Area (2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermochronometry At Coso Geothermal Area (2003) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermochronometry Activity Date 2003 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the age of the geothermal system and the granitic host rock using the 40Ar/39Ar thermal history Notes A downhole 40Ar/39Ar thermochronology study of granitic host-rock K-feldspar is presently being undertaken at the New Mexico Geochronology Research Laboratory. 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 of the system at present day

71

Isotopic Analysis Fluid At Coso Geothermal Area (1997) | Open Energy  

Open Energy Info (EERE)

Fluid At Coso Geothermal Area (1997) Fluid At Coso Geothermal Area (1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Coso Geothermal Area (1997) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1997 Usefulness not indicated DOE-funding Unknown Exploration Basis Identify the source of chlorine Notes The 36Cl/Cl values for several geothermal water samples and reservoir host rock samples have been measured. The results suggest that the thermal waters could be connate waters derived from sedimentary formations, presumably underlying and adjacent top the granitic rocks, which have recently migrated into the host rocks. Alternatively, most of the chlorine but not the water, may have recently input into the system from magmatic

72

Tracer Testing At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2004) Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the EGS potential of the Coso Geothermal Field Notes A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the reservoir liquid in some of the feed zones boils

73

Audio-Magnetotellurics At Coso Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (1977) Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Audio-Magnetotellurics Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes Audio-magnetotelluric geophysical surveys determined that the secondary low in the geothermal area, best defined by the 7.5-Hz AMT map and dc soundings, is caused by a shallow conductive zone (5--30 ohm m) interpreted to be hydrothermally altered Sierra Nevada basement rocks containing saline water of a hot water geothermal system. This zone of lowest apparent resistivities over the basement rocks lies within a closed contour of a

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Cuttings Analysis At Coso Geothermal Area (2003) | Open Energy Information  

Open Energy Info (EERE)

3) 3) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Cuttings Analysis Activity Date 2003 Usefulness not indicated DOE-funding Unknown Exploration Basis 1) Fracture/stress analysis 2) Determine the EGS potential of Coso Geothermal Region Notes 1) Petrologic analyses of cuttings from several wells are used to construct a vein-mineral paragenesis of the Coso east flank. 2) Cuttings collected during the drilling of each of the four east-flank study wells are used to determine the lithologies of the hydrothermally altered zones, the characteristics of the vein fillings, and the extent of large-scale faulting. References Rose, P.; Barton, C.; McCulloch, J.; Moore, J.N.; Kovac, K.; Sheridan, J.; Spielman, P.; Berard, B. (1 January 2003) The Coso EGS

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Rock Sampling At Coso Geothermal Area (1995) | 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 » Rock Sampling At Coso Geothermal Area (1995) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At Coso Geothermal Area (1995) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Rock Sampling Activity Date 1995 Usefulness not indicated DOE-funding Unknown Notes Geologic controls on the geometry of the upwelling plume were investigated using petrographic and analytical analyses of reservoir rock and vein material. References Lutz, S.J.; Moore, J.N. ; Copp, J.F. (1 June 1995) Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area,

76

Magnetotellurics At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Magnetotellurics At Coso Geothermal Area (2006) Magnetotellurics At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Magnetotellurics Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis Use magnetotelluric data to model the reservoir. Notes Magnetotelluric (MT) data from 101 tensor stations over the East Flank of the Coso geothermal field, southeastern California, were inverted on a PC using a 3-D Gauss-Newton regularization algorithm based on a staggered-grid, finite difference forward problem and jacobians. Static shifts at each MT site can be included as additional parameters and solved for simultaneously. Recent modifications to the algorithm developed here include the addition of an LU solver to calculate the model parameter

77

Fluid Inclusion Analysis At Coso Geothermal Area (1999) | Open Energy  

Open Energy Info (EERE)

Fluid Inclusion Analysis At Coso Geothermal Area Fluid Inclusion Analysis At Coso Geothermal Area (1999) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 1999 Usefulness not indicated DOE-funding Unknown Exploration Basis Well and steam sample comparison Notes Vein and alteration assemblages from eight Coso wells have been collected and their fluid-inclusion gases analyzed by quadrupole mass spectrometry. Four major types of alteration were sampled: 1) young calcite-hematite-pyrite veins; 2) wairakite or epidote veins and alteration that are spatially associated with deep reservoirs in the main field and eastern wells; 3) older sericite and pyrite wallrock alteration; and 4) stilbite-calcite veins that are common in cooler or marginal portions of

78

Numerical Modeling At Coso Geothermal Area (2000) | Open Energy Information  

Open Energy Info (EERE)

Numerical Modeling At Coso Geothermal Area (2000) Numerical Modeling At Coso Geothermal Area (2000) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 2000 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine areas with fault patterns for geothermal development using Poisson's ratio and porosity Notes High-resolution, three-dimensional, compressional and shear wave velocity models, derived from microearthquake travel times, are used to map the distribution of Poisson's ratio and porosity at Coso Geothermal Area. Spatial resolution of the three-dimensional Poisson's ratio and porosity distributions is estimated to be 0.5 km horizontally and 0.8 km vertically. Model uncertainties, + or -1% in the interior and + or -2.3% around the

79

Conceptual Model At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

6) 6) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Conceptual Model Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis Determine boiling zones and their relation to production zones by developing a fluid model Notes A fluid model for the Coso geothermal reservoir is developed from Fluid Inclusion Stratigraphy (FIS) analyses. Fluid inclusion gas chemistry in well cuttings collected at 20 ft intervals is analyzed and plotted on well log diagrams. Models are created using cross-sections and fence diagrams. References Dilley, L.M.; Norman, D.I.; Moore, J.; McCullouch, J. (1 January 2006) FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR Retrieved from "http://en.openei.org/w/index.php?title=Conceptual_Model_At_Coso_Geothermal_Area_(2006)&oldid=473688

80

Teleseismic-Seismic Monitoring At Coso Geothermal Area (2006) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (2006) Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis To assess the benefits of surface seismic surveys Notes Different migration procedures were applied to image a synthetic reservoir model and seismic data. After carefully preprocessing seismic data, the 2-D and 2.5-D pre-stack depth migration of line 109 in the Coso Geothermal Field shows a well defined reflector at about 16,000 ft depth. Compared to the 2-D pre-stack migrated image, the 2.5-D pre-stack migrated image

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81

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1983-1985) | Open  

Open Energy Info (EERE)

Coso Geothermal Area (1983-1985) Coso Geothermal Area (1983-1985) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (1983-1985) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1983 - 1985 Usefulness not indicated DOE-funding Unknown Exploration Basis To study anomalous shear wave attenuation in the shallow crust Notes V s and V p wave amplitudes were measured from vertical component seismograms of earthquakes that occurred in the Coso-southern Sierra Nevada region from July 1983 to 1985. Seismograms of 16 small earthquakes show SV amplitudes which are greatly diminished at some azimuths and takeoff angles, indicating strong lateral variations in S wave attenuation in the

82

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1975-1976) | Open  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1975-1976) Teleseismic-Seismic Monitoring At Coso Geothermal Area (1975-1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (1975-1976) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1975 - 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Estimate thermal regime and potential of the system Notes Three-dimensional Q -1 model of the Coso Hot Springs known geothermal resource area was conducted. To complete the model a regional telemetered network of sixteen stations was operated by the U.S. Geological Survey; deployed a portable Centipede array of 26 three-component stations near the

83

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

84

Modeling-Computer Simulations At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Modeling-Computer Simulations At Coso Geothermal Area (1980) Modeling-Computer Simulations At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Modeling-Computer Simulations Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis Estimate thermal regime and potential of the system Notes A three-dimensional generalized linear inversion of the delta t* observations was performed using a three-layer model. A shallow zone of high attenuation exists within the upper 5 km in a region bounded by Coso Hot Springs, Devils Kitchen, and Sugarloaf Mountain probably corresponding to a shallow vapor liquid mixture or "lossy" near surface lithology.

85

Direct-Current Resistivity Survey At Coso Geothermal Area (1977) | Open  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Coso Geothermal Area (1977) Direct-Current Resistivity Survey At Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date 1977 Usefulness useful regional reconnaissance DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes DC resistivity geophysical surveys determined that the secondary low in the geothermal area, best defined by the 7.5-Hz AMT map and dc soundings, is caused by a shallow conductive zone (5--30 ohm m) interpreted to be

86

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1998-2002) | Open  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1998-2002) Teleseismic-Seismic Monitoring At Coso Geothermal Area (1998-2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (1998-2002) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1998 - 2002 Usefulness not indicated DOE-funding Unknown Notes Two recent earthquake sequences near the Coso geothermal field show clear evidence of faulting along conjugate planes. Results from analyzing an earthquake sequence occurring in 1998 are presented and compared with a similar sequence that occurred in 1996. The two sequences followed mainshocks that occurred on 27 November, 1996 and 6 March, 1998. Both mainshocks ruptured approximately colocated regions of the same fault

87

Micro-Earthquake At Coso Geothermal Area (2005) | Open Energy Information  

Open Energy Info (EERE)

5) 5) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Area (2005) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2005 Usefulness useful DOE-funding Unknown Notes Characterization of 3D Fracture Patterns at The Geysers and Coso Geothermal Reservoirs by Shear-wave Splitting, Rial, Elkibbi, Yang and Pereyra. The raw data for the project consists of seismographic recordings of microearthquakes (MEQ) detected over many years by arrays of sensors at both The Geysers and Coso. References Patrick Laney (2005) Federal Geothermal Research Program Update - Fiscal Year 2004 Retrieved from "http://en.openei.org/w/index.php?title=Micro-Earthquake_At_Coso_Geothermal_Area_(2005)&oldid=475476"

88

Thermal And-Or Near Infrared At Coso Geothermal Area (2009) | Open Energy  

Open Energy Info (EERE)

And-Or Near Infrared At Coso Geothermal Area (2009) And-Or Near Infrared At Coso Geothermal Area (2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Coso Geothermal Area (2009) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermal And-Or Near Infrared Activity Date 2009 Usefulness useful DOE-funding Unknown Exploration Basis Determine the importance of elevation and temperature inversions using thermal infrared satellite images Notes Examples of nighttime temperature inversions are shown in thermal infrared satellite images collected over the Coso geothermal field in eastern California. Temperature-elevation plots show the normal trend of temperature decrease with elevation, on which temperature inversions appear

89

Data Acquisition-Manipulation At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Data Acquisition-Manipulation At Coso Geothermal Area (1980) Data Acquisition-Manipulation At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Data Acquisition-Manipulation Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis Fault mapping in geothermal area to determine the seismicity of the Coso Range Notes The rhyolite field has a significantly higher b value of 1.26 +- 0.16; if only the shallow events (depth <5 km) are used in the calculation, the b value for this area becomes even higher, 1.34 +- 0.24. The higher b values were interpreted as reflecting the existence of short average fault lengths

90

Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) |  

Open Energy Info (EERE)

Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (Norman & Moore, 2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2004 Usefulness useful DOE-funding Unknown Exploration Basis To determine effectiveness of FIS for geothermal exploration Notes In order to test FIS for geothermal exploration, drill chips were analyzed from Coso well 83-16, which were selected at 1000 ft intervals by Joseph Moore. Sequential crushes done by our CFS (crushfast-scan) method (Norman 1996) show that chips have a high density of homogeneous fluid inclusions.

91

Micro-Earthquake At Coso Geothermal Area (2011) | Open Energy Information  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (2011) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis To analyze temporal velocity variations Notes Microseismic data recorded between 1996 and 2008 was used to determine the temporally varying seismic velocity of the Coso geothermal field. In this study, the double difference tomography method was applied to simultaneously locate a suite of microseismic events and determine the compressional and shear wave velocity as well as their ratio. References Seher, T.; Zhang, H.; Fehler, M.; Yu, H.; Soukhovitskaya, V.;

92

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

93

Evaluation of Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot  

Open Energy Info (EERE)

Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Springs: KGRA, China Lake, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Evaluation of Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Springs: KGRA, China Lake, CA Details Activities (1) Areas (1) Regions (0) Abstract: The well, Coso Geothermal Exploratory Hole No. 1 (CGEH-1) was drilled at the China Lake Naval Weapons Center. Drilling was started on 2 September 1977, and the well completed on 1 December 1977 to 4845 ft. The well is an exploratory hole to determine geological and hydrothermal characteristics of the Coso Hot Springs KGRA (Known Geothermal Resource Area). During drilling, numerous geophysical and temperature surveys were performed to evaluate the geological characteristics of CGEH-1. LBL

94

Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data  

DOE Green Energy (OSTI)

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 a fault-zone trapped Rayleigh-type guided wave from microearthquake data. The wavelet transform is employed to characterize guided-wave's velocity-frequency dispersion, and numerical methods are used to simulate the guided-wave propagation. The modeling calculation suggests that the fault zone is {approx} 200m wide, and has a P wave velocity of 4.80 km/s and a S wave velocity of 3.00 km/s, which is sandwiched between two half spaces with relatively higher velocities (P wave velocity 5.60 km/s, and S wave velocity 3.20 km/s). zones having vertical or nearly vertical dipping fault planes.

SGP-TR-150-16

1995-01-26T23:59:59.000Z

95

Numerical Modeling At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

2006) 2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis Determine areas of high permeability using isotope transport and exchange analysis Notes Finite element models of single-phase, variable-density fluid flow, conductive- convective heat transfer, fluid-rock isotope exchange, and groundwater residence times were developed. Using detailed seismic reflection data and geologic mapping, a regional cross-sectional model was constructed that extends laterally from the Sierra Nevada to Wildhorse Mesa, west of the Argus Range. The findings suggest that active faults and seismogenic zones in and around the Coso geothermal area have much higher

96

Cuttings Analysis At Coso Geothermal Area (1985-1987) | Open Energy  

Open Energy Info (EERE)

5-1987) 5-1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Coso Geothermal Area (1985-1987) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1985 - 1987 Usefulness useful DOE-funding Unknown Exploration Basis Analyze an indicator of high permeability zones within a geothermal field Notes Petrographic and geochemical analyses of cuttings from six wells in the Coso Hot Springs geothermal field show a systematic variation in the occurrence, texture, and composition of sericite that can be correlated with high permeability production zones and temperature. The wells studied intersect rhyolitic dikes and sills in the fractured granitic and dioritic

97

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

98

Thermochronometry At Coso Geothermal Area (2010) | Open Energy Information  

Open Energy Info (EERE)

Thermochronometry At Coso Geothermal Area (2010) Thermochronometry At Coso Geothermal Area (2010) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermochronometry 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

99

Reflection Survey At Coso Geothermal Area (2001) | Open Energy Information  

Open Energy Info (EERE)

Exploration Activity: Reflection Survey At Coso Geothermal Area (2001) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Reflection Survey Activity Date 2001 Usefulness not indicated DOE-funding Unknown Exploration Basis Look for features that are characteristic of the geothermal producing region not originally seen by imaging the Coso Field using seismic Notes During December of 1999, approximately 32 miles of seismic data were acquired as part of a detailed seismic investigation undertaken by the US Navy Geothermal Program Office. Data acquisition was designed to make effective use of advanced data processing methods, which include Optim's proprietary nonlinear velocity optimization technique and pre-stack Kirchhoff migration. The velocity models from the 2-D lines were combined

100

Multispectral Imaging At Coso Geothermal Area (1990) | Open Energy  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Multispectral Imaging At Coso Geothermal Area (1990) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Multispectral Imaging Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis To understand the complex geology seen on the surface and to try to improve the method of locating geothermal wells. Notes Remote sensing studies have been made in and adjacent to the Coso geothermal field using TM FCC satellite imagery, 1:100,000 scale, US Geological Survey orthophotos, 1:24,000 scale, and proprietary black-and-white photography by California Energy Company, Inc., at various scales including black-and-white positive film transparencies at a scale of

Note: This page contains sample records for the topic "details location coso" 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

Reconnaissance electrical surveys in the Coso Range, California | Open  

Open Energy Info (EERE)

electrical surveys in the Coso Range, California electrical surveys in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Reconnaissance electrical surveys in the Coso Range, California Details Activities (3) Areas (1) Regions (0) Abstract: Telluric current, audiomagnetotelluric (AMT), and direct current (dc) methods were used to study the electrical structure of the Coso Range and Coso geothermal area. Telluric current mapping outlined major resistivity lows associated with conductive valley fill of the Rose Valley basin, the Coso Basin, and the northern extension of the Coso Basin east of Coso Hot Springs. A secondary resistivity low with a north-south trend runs through the Coso Hot Springs--Devil's Kitchen geothermal area. The secondary low in the geothermal area, best defined by the 7.5-Hz AMT map

102

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

103

Remote sensing survey of the Coso geothermal area, Inyo county, California.  

Open Energy Info (EERE)

sensing survey of the Coso geothermal area, Inyo county, California. sensing survey of the Coso geothermal area, Inyo county, California. Technical publication 1968--1971 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Remote sensing survey of the Coso geothermal area, Inyo county, California. Technical publication 1968--1971 Details Activities (4) Areas (1) Regions (0) Abstract: The Coso geothermal area, located primarily within the test ranges of the Naval Weapons Center, China Lake, Calif., is an area of granitic rock exposure and fracture-controlled explosion breccias and perlitic domes. Fumarolic and hot springs activity are present at scattered locations. Remote sensing studies were made that included color and color IR photography, 8- to 14-micrometer IR imagery, and snowmelt patterns. Color photography and snowmelt patterns were of greatest utility in

104

Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems  

Open Energy Info (EERE)

of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems Experiment Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems Experiment Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Geothermal Field is a large, high temperature system located in California on the western edge of the Basin and Range province. Well 46A-19RD, located in the southwestern portion of this field is currently the focus of a DOE-funded Enhanced Geothermal Systems (EGS) project. Petrologic and petrographic investigations of the well show that quartz diorite and granodiorite are dominant lithologies. Dikes of granophyre, containing phenocrysts of plagioclase, potassium feldspar, and

105

Aerial Photography At Coso Geothermal Area (1968-1971) | Open Energy  

Open Energy Info (EERE)

1971) 1971) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Coso Geothermal Area (1968-1971) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Aerial Photography Activity Date 1968 - 1971 Usefulness useful DOE-funding Unknown Exploration Basis Fumarolic and hot springs activity Notes Color photography has the greatest utility in locating areas of presently active thermal fluid leakage and in facilitating geologic interpretation 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=Aerial_Photography_At_Coso_Geothermal_Area_(1968-1971)&oldid=473677"

106

Fluid Inclusion Analysis At Coso Geothermal Area (1990) | Open Energy  

Open Energy Info (EERE)

0) 0) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (1990) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 1990 Usefulness not indicated DOE-funding Unknown Notes A system for analysis of inclusion gas contents based upon quadrupole mass spectrometry has been designed, assembled and tested during the first seven months of funding. The system is currently being tested and calibrated using inclusions with known gas contents from active geothermal systems. References Mckibben, M. A. (25 April 1990) Volatiles in hydrothermal fluids- A mass spectrometric study of fluid inclusions from active geothermal systems

107

Fluid Inclusion Analysis At Coso Geothermal Area (1996) | Open Energy  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (1996) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 1996 Usefulness not indicated DOE-funding Unknown Notes Fluid inclusion homogenization temperatures and salinities demonstrate that cool, low salinity ground waters were present when the thermal plume was emplaced. Dilution of the thermal waters occurred above and below the plume producing strong gradients in their compositions. Comparison of mineral and fluid inclusion based temperatures demonstrates that cooling has occurred along the margins of the thermal system but that the interior of the system

108

Compound and Elemental Analysis At Coso Geothermal Area (1991) | Open  

Open Energy Info (EERE)

1) 1) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Coso Geothermal Area (1991) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Compound and Elemental Analysis Activity Date 1991 Usefulness useful DOE-funding Unknown Exploration Basis Determine the fluid origin by looking at variations in dissolved gas compositions of reservoir fluids Notes Gas concentrations and ratios in 110 analyses of geothermal fluids from 47 wells in the Coso geothermal system illustrate the complexity of this two-phase reservoir in its natural state. Two geographically distinct regions of single-phase (liquid) reservoir are present and possess distinctive gas and liquid compositions. Steam sampled from wells in the

109

Ground Magnetics At Coso Geothermal Area (1984) | 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 » Ground Magnetics At Coso Geothermal Area (1984) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At Coso Geothermal Area (1984) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Ground Magnetics Activity Date 1984 Usefulness useful DOE-funding Unknown Notes The magnetic intensity contours match general geologic patterns in varying rock types. Hydrothermally altered rocks along intersecting fault zones show up as strong magnetic lows that form a triangular-shaped area. This area is centered in an area of highest heat flow and is a site of

110

Core Analysis At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

Core Analysis At Coso Geothermal Area (1980) Core Analysis At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Core Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the heat transfer mechanism Notes In an investigation of the thermal regime of this Basin and Range geothermal area, temperature measurements were made in 25 shallow and 1 intermediate depth borehole. Thermal conductivity measurements were made on 312 samples from cores and drill cuttings. The actual process by which heat is transferred is rather complex; however, the heat flow determinations can be divided into two groups. The first group, less than 4.0 HFU, are indicative of regions with primarily conductive regimes, although

111

Numerical Modeling At Coso Geothermal Area (2010) | Open Energy Information  

Open Energy Info (EERE)

10) 10) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Numerical Modeling At Coso Geothermal Area (2010) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 2010 Usefulness useful DOE-funding Unknown Exploration Basis To determine conditions when fractures nucleate Notes A numerical model was developed using Poly3D to simulate the distribution and magnitude of stress concentration in the vicinity of the borehole floor, and determine the conditions under which petal-centerline fractures nucleate. As a whole, the simulations have demonstrated that a borehole under the stress boundary conditions present at the Coso 58A-10 borehole is able to amplify the stress concentration to produce tension below the

112

Acoustic Logs At Coso Geothermal Area (2005) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2005) Coso Geothermal Area (2005) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Acoustic Logs Activity Date 2005 Usefulness not indicated DOE-funding Unknown Exploration Basis Well bore fracture analysis Notes Electrical and acoustic image logs have been collected from well 58A-10 in crystalline rock on the eastern margin. Electrical image logs appear to be sensitive to variations in mineralogy, porosity, and fluid content that highlight both natural fractures and rock fabrics. These fabric elements account for about 50% of the total population of planar structures seen in the electrical image log, but locally approach 100%. Acoustic image logs reveal a similar natural fracture population, but generally image slightly fewer fractures, and do not reveal rock fabric. Both logs also record

113

Fluid Inclusion Analysis At Coso Geothermal Area (2003) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area Coso Geothermal Area (2003) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2003 Usefulness not indicated DOE-funding Unknown Exploration Basis 1) Fracture/stress analysis. 2)To determine the driver of the relationship between hydrogen and organic species. Notes 1) Fluid inclusion analyses of cuttings from well 83-16 were used to determine the temperatures of vein mineralization. 2) Measurement of organic compounds in fluid inclusions shows that there are strong relationships between H2 concentrations and alkane/alkene ratios and benzene concentrations. Inclusion analyses that indicate H2 concentrations > 0.001 mol % typically have ethane > ethylene, propane > propylene, and

114

Flow Test At Coso Geothermal Area (1978) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Coso Geothermal Area (1978) Flow Test At Coso Geothermal Area (1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Flow Test Activity Date 1978 Usefulness not indicated DOE-funding Unknown Notes Flow tests of well CGEH No. 1 were conducted. LBL performed eight temperature surveys after completion of the well to estimate equilibrium reservoir temperatures. Downhole fluid samples were obtained by the U.S. Geological Survey (USGS) and Lawrence Berkeley Laboratory (LBL), and a static pressure profile was obtained. The first test began September 5, 1978 using nitrogen stimulation to initiate flow; this procedure resulted in small flow and subsequent filling of the bottom hole with drill cuttings. The second test, on November 2, 1978, utilized a nitrogen-foam-water mixture to clean residual particles from bottom hole,

115

Exploratory Well At Coso Geothermal Area (1977-1978) | Open Energy  

Open Energy Info (EERE)

77-1978) 77-1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Exploratory Well At Coso Geothermal Area (1977-1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Exploratory Well Activity Date 1977 - 1978 Usefulness useful DOE-funding Unknown Notes 1477-m Coso Geothermal Exploration Hole (CGEH) No. 1 well drilled .The objective of well and future well testing is to determine the well productivity and geothermal reservoir parameters. References Energy Research and Development Administration, Las Vegas, NV (USA). Nevada Operations Office (1 June 1977) Operations plan Coso geothermal exploratory hole No. 1 (CGEH-1) Department of Energy, Las Vegas, Nev.. Nevada Operations Office; Naval Weapons Center, China Lake, Calif.; California Univ., Berkeley.

116

Flow Test At Coso Geothermal Area (1985-1986) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Coso Geothermal Area (1985-1986) Flow Test At Coso Geothermal Area (1985-1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Coso Geothermal Area (1985-1986) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Flow Test Activity Date 1985 - 1986 Usefulness not indicated DOE-funding Unknown Exploration Basis Understand the connectivity of the production and injection wells. Notes A long-term flow test was conducted involving one producing well (well 43-7), one injector (well 88-1), and two observation wells (well 66-6 and California Energy Co's well 71A-7). The flow test included a well production metering system and a water injection metering system. References Sanyal, S.; Menzies, A.; Granados, E.; Sugine, S.; Gentner, R.

117

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

118

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1988) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Coso Geothermal Area (1988) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1988 Usefulness useful DOE-funding Unknown Exploration Basis To analyze three-dimensional Vp/Vs variation Notes A tomographic inversion for the 3D variations of the Vp/V s, the ratio of compressional to shear velocity, was performed. Iterative back projection of 2966 shear and compressional wave travel time residuals from local earthquakes recorded on vertical instruments reveals that Vp/Vs is generally high at the surface and decreases systematically to 10 km depth. Near Devil's Kitchen in the Coso Geothermal Area, Vp/Vs values are very low near the surface, consistent with measured values for steam-dominated

119

InSAR At Coso Geothermal Area (2000) | 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 » InSAR At Coso Geothermal Area (2000) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: InSAR At Coso Geothermal Area (2000) Exploration Activity Details Location Coso Geothermal Area Exploration Technique InSAR Activity Date 2000 Usefulness useful DOE-funding Unknown Exploration Basis To determine ground subsidence using satellite radar interferometry Notes Interferometric synthetic aperture radar (InSAR) data collected in the Coso geothermal area, eastern California, during 1993-1999 indicate ground subsidence over a approximately 50 km 2 region that approximately coincides

120

Teleseismic evidence for a low-velocity body under the Coso geothermal area  

Open Energy Info (EERE)

Teleseismic evidence for a low-velocity body under the Coso geothermal area Teleseismic evidence for a low-velocity body under the Coso geothermal area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Teleseismic evidence for a low-velocity body under the Coso geothermal area Details Activities (1) Areas (1) Regions (0) Abstract: Teleseismic P wave arrivals were recorded by a dense array of seismograph stations located in the Coso geothermal area, California. The resulting pattern of relative residuals an area showing approximately 0.2-s excess travel time that migrates with changing source azimuth, suggesting that the area is the 'delay shadow' produced by a deep, low-velocity body. Inversion of the relative residual data for three-dimensional velocity structure determines the lateral variations in velocity to a depth of 22.5

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121

2-M Probe Survey At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

7) 7) Exploration Activity Details Location Coso Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 1977 Usefulness useful DOE-funding Unknown Exploration Basis Compare directly shallow temperature results with standard geothermal exploration techniques. Notes Shallow soil temperature data (2m) were collected at 102 sites at Coso. Close geometrical similarity between the shallow soil temperature has been observed with the 30-m contour data for Coso using computer program. References Leschack, L. A.; Lewis, J. E.; Chang, D. C. (1 December 1977) Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Semi-annual technical report Retrieved from "http://en.openei.org/w/index.php?title=2-M_Probe_Survey_At_Coso_Geothermal_Area_(1977)&oldid=47367

122

Fluid Inclusion Analysis At Coso Geothermal Area (2004-2005) | Open Energy  

Open Energy Info (EERE)

Fluid Inclusion Analysis At Coso Geothermal Area (2004-2005) Fluid Inclusion Analysis At Coso Geothermal Area (2004-2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (2004-2005) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2004 - 2005 Usefulness useful DOE-funding Unknown Exploration Basis Determine if fluid inclusion stratigraphy is applicable to geothermal Notes Fluid Inclusion Stratigraphy (FIS) is a new technique developed for the oil industry in order to map borehole fluids.Fluid inclusion gas geochemistry is analyzed and plotted on well log diagrams. The working hypothesis is that select gaseous species and species ratios indicate areas of groundwater and reservoir fluid flow and reservoir seals. Analyses from

123

Micro-Earthquake At Coso Geothermal Area (1987) | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (1987) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1987 Usefulness not indicated DOE-funding Unknown Exploration Basis Analysis was done to link the zones of decreased P velocity to contemporary magmatic activity Notes Inversion of 4036 P wave travel time residuals from 429 local earthquakes using a tomographic scheme provides information about 3D upper crustal velocity variations in the Indian Wells Valley-Coso region of southeastern CA. The residuals are calculated relative to a Coso-specific velocity model, corrected for station elevation, weighted, and back-projected along

124

Modeling-Computer Simulations At Coso Geothermal Area (2000) | Open Energy  

Open Energy Info (EERE)

Modeling-Computer Simulations At Coso Geothermal Area (2000) Modeling-Computer Simulations At Coso Geothermal Area (2000) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Coso Geothermal Area (2000) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Modeling-Computer Simulations Activity Date 2000 Usefulness not indicated DOE-funding Unknown Exploration Basis Model ground subsidence using observations of satellite radar interferometry Notes The InSAR displacement data was inverted for the positions, geometry, and relative strengths of the deformation sources at depth using a nonlinear least squares minimization algorithm. Elastic solutions were used for a prolate uniformly pressurized spheroidal cavity in a semi-infinite body as

125

Micro-Earthquake At Coso Geothermal Area (1974) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (1974) Coso Geothermal Area (1974) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1974 Usefulness useful DOE-funding Unknown Exploration Basis To determine the background level of seismicity before any drilling related to production takes place. Notes Two different arrays of portable high-gain seismographs were installed- measurements taken over thirty three days; completed 9 calibration blasts. The microearthquake activity changed considerably including days which had only a few events while others had as many as 100 or more distinct local events; more than two thousand events with S-P times of less than three seconds were detected; observed low value for Poisson's ratio which indicated that the Coso geothermal system is a vapor-dominated system

126

GEOLOGY AND MINERAL PARAGENESIS STUDY WITHIN THE COSO-EGS PROJECT | Open  

Open Energy Info (EERE)

MINERAL PARAGENESIS STUDY WITHIN THE COSO-EGS PROJECT MINERAL PARAGENESIS STUDY WITHIN THE COSO-EGS PROJECT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: GEOLOGY AND MINERAL PARAGENESIS STUDY WITHIN THE COSO-EGS PROJECT Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Geothermal Field is a large, high temperature system located in 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 project. The reservoir rocks generally consist of a complex, interfingering sequence of diorite, granodiorite, and granite. The diorites show weak to strong alteration representing multiple hydrothermal events. The work described here was undertaken to evaluate the geology and thermal history of the East Flank, in order to better

127

Teleseismic-Seismic Monitoring At Coso Geothermal Area (2004) | Open Energy  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis Analyze seismic data to develop reservoir models that characterize the geothermal system Notes Large-amplitude, secondary arrivals are modeled as scattering anomalies. 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

128

Geologic Study of the Coso Formation | Open Energy Information  

Open Energy Info (EERE)

Study of the Coso Formation Study of the Coso Formation Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geologic Study of the Coso Formation Details Activities (1) Areas (1) Regions (0) Abstract: There have been great advances in the last 20 years in understanding the volcanic, structural, geophysical, and petrologic development of the Coso Range and Coso geothermal field. These studies have provided a wealth of knowledge concerning the geology of the area, including general structural characteristics and kinematic history. One element missing from this dataset was an understanding of the sedimentology and stratigraphy of well-exposed Cenozoic sedimentary strata - the Coso Formation. A detailed sedimentation and tectonics study of the Coso Formation was undertaken to provide a more complete picture of the

129

Geological and geophysical analysis of Coso Geothermal Exploration Hole No.  

Open Energy Info (EERE)

and geophysical analysis of Coso Geothermal Exploration Hole No. and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geological and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Details Activities (5) Areas (1) Regions (0) Abstract: The Coso Geothermal Exploration Hole number one (CGEH-1) was drilled in the Coso Hot Springs KGRA, California, from September 2 to December 2, 1977. Chip samples were collected at ten foot intervals and extensive geophysical logging surveys were conducted to document the geologic character of the geothermal system as penetrated by CGEH-1. The major rock units encountered include a mafic metamorphic sequence and a

130

Upper crustal structure of an obliquely extending orogen, central Coso  

Open Energy Info (EERE)

structure of an obliquely extending orogen, central Coso structure of an obliquely extending orogen, central Coso Range, eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Upper crustal structure of an obliquely extending orogen, central Coso Range, eastern California Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Range is an extensional domain in a releasing stepover between major dextral strike-slip faults along the southeastern margin of the Sierra Nevada Microplate. New multifold seismic reflection data from the Coso geothermal field in the central Coso Range image reflectors that resemble suites of structural and magmatic features exposed in many exhumed metamorphic core complexes (MCC). The Coso Wash Fault, a Holocene-active normal fault that is a locus of surface geothermal activity, is imaged as a

131

Micro-Earthquake At Coso Geothermal Area (1993-1994) | Open Energy  

Open Energy Info (EERE)

1994) 1994) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (1993-1994) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1993 - 1994 Usefulness useful DOE-funding Unknown Exploration Basis Multiplet analysis Notes Instances of microseismicity in seismic doublets which are co-located hypocenters that appear to have nearly identical waveforms were searched for. Using 1085 high-quality events from 1993 to 1994, they identified numerous doublets, some occurring within minutes of each other. The hypocentral data was subdivided into spatial clusters to reduce the computational burden and evaluated multiple cross-correlation pairs,

132

Heat flow and microearthquake studies, Coso Geothermal Area,...  

Open Energy Info (EERE)

and (2) microearthquake studies associated with the geothermal phenomena in the Coso Hot Springs area. The sites for ten heat flow boreholes were located primarily using the...

133

Micro-Earthquake At Coso Geothermal Area (1996) | Open Energy Information  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (1996) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1996 Usefulness useful DOE-funding Unknown Exploration Basis Determine the attenuation structure Notes Pulse width data are used to invert for attenuation structure. The dataset consists of pulse width measurements of 838 microseismic events recorded on a seismic array of 16 downhole stations between August 1993 and March 1994. A broad region of low Q (≈ 30 to 37) is located at 0.5 to 1.2 km in depth below Devil's Kitchen, Nicol Prospects, and Coso Hot Springs. A vertical, low Q (≈ 36 in contrast with surrounding rock of 80) region is

134

Aeromagnetic Survey At Coso Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

77) 77) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Aeromagnetic Survey Activity Date 1977 Usefulness useful regional reconnaissance DOE-funding Unknown Notes A detailed low-altitude aeromagnetic survey of 576 line-mi (927 line-km) was completed over a portion of the Coso Hot Springs KGRA. This survey defined a pronounced magnetic low that could help delineate the geothermal system that has an areal extent of approximately 10 sq mi (26 sq km) partially due to magnetite destruction by hydrothermal solutions associated with the geothermal system. The anomoly coincides with two other geophysical anomalies: 1) a bedrock electrical resistivity low and 2) an area of relatively high near-surface temperatures. References Fox, R. C. (1 May 1978) Low-altitude aeromagnetic survey of a

135

Numerical Modeling At Coso Geothermal Area (1999) | Open Energy Information  

Open Energy Info (EERE)

9) 9) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 1999 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine three-dimensional P and S waves velocity structures Notes High precision P and S wave travel times for 2104 microearthquakes with focus <6 km are used in a non-linear inversion to derive high-resolution 3-D compressional and shear velocity structures at the Coso Geothermal Area. Block size for the inversion is 0.2 km horizontally and 0.5 km vertically and inversions are investigated in the upper 5 km of the geothermal area. Spatial resolution, calculated by synthetic modeling of a cross model at critical locations, is estimated to be 0.35 km for Vp and 0.5 km for V s . In the 2 km southwest Sugarloaf region, we found low V p

136

Cuttings Analysis At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

6) 6) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Cuttings Analysis Activity Date 2006 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the geology of Injection Well 46A-19RD Notes Well 46A-19RD, located in the southwestern portion of this field is currently the focus of a DOE-funded Enhanced Geothermal Systems (EGS) project. Petrologic and petrographic investigations of the well show that quartz diorite and granodiorite are dominant lithologies. Dikes of granophyre, containing phenocrysts of plagioclase, potassium feldspar, and quartz were encountered at approximately 1438-1457 m and 3459.5-3505.2 m. References Kovac, K.M.; Moore, J.N.; Rose, P.E.; McCulloch, J. (1 January 2006) Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems

137

Data Acquisition-Manipulation At Coso Geothermal Area (1982) | Open Energy  

Open Energy Info (EERE)

2) 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Coso Geothermal Area (1982) Exploration Activity Details Location Coso 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 of the seismicity. The methodology employed compares the seismicity distributions with a generalized Poisson distribution. Temporally related events are identified by the distribution of the interoccurrence times. From the temporal characteristics of the seismicity associated with these

138

Data Acquisition-Manipulation At Coso Geothermal Area (1979) | Open Energy  

Open Energy Info (EERE)

9) 9) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Coso Geothermal Area (1979) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Data Acquisition-Manipulation Activity Date 1979 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the potential electrical power in the area Notes The analysis was concentrated on identifying the major sources of surface and ground water, potential limitations on the usage of this water, and the resulting constraints on potentially developable electrical power in each geothermal resource area. References Sakaguchi, J. L. (19 March 1979) Regional Systems Development for Geothermal Energy Resources Pacific Region (California and Hawaii).

139

Micro-Earthquake At Coso Geothermal Area (2007) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2007) Coso Geothermal Area (2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2007 Usefulness not indicated DOE-funding Unknown Exploration Basis Develop and test a tool to better analyze microearthquake data Notes A GUI-based interface was developed to use inversion software that greatly increases its ease of use and makes feasible analyzing larger numbers of earthquakes than previously was practical. Examples are shown from an injection experiment conducted in well 34-9RD2, on the East Flank. This tight well was re-drilled February - March 2005. Pervasive porosity and fractures were encountered at about 2660 m depth. These mud losses induced a 50-minute swarm of 44 microearthquakes, with magnitudes in the range -0.3

140

Micro-Earthquake At Coso Geothermal Area (1992-1997) | Open Energy  

Open Energy Info (EERE)

2-1997) 2-1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (1992-1997) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1992 - 1997 Usefulness useful DOE-funding Unknown Exploration Basis Characterize subsurface fracture patterns in the Coso geothermal reservoir by analyzing shear-wave splitting of microearthquake seismorgrams Notes A large number of microearthquake seismograms have been recorded by a downhole, three-component seismic network. Shear-wave splitting induced by the alignment of cracks in the reservoir has been widely observed in the recordings. Over 100 events with body wave magnitude greater than 1.0 from

Note: This page contains sample records for the topic "details location coso" 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

Conceptual Model At Coso Geothermal Area (2005-2007) | Open Energy  

Open Energy Info (EERE)

7) 7) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Conceptual Model At Coso Geothermal Area (2005-2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Conceptual Model Activity Date 2005 - 2007 Usefulness useful DOE-funding Unknown Exploration Basis Determine most productive areas of geothermal field using stress and faulting analysis to develop a geomechanical model Notes New geologic mapping and measurements of stress orientations and magnitudes from wells 34-9RD2 and 58A-10 were integrated 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

142

Thermal And-Or Near Infrared At Coso Geothermal Area (2007) | Open Energy  

Open Energy Info (EERE)

2007) 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Coso Geothermal Area (2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermal And-Or Near Infrared Activity Date 2007 Usefulness not indicated DOE-funding Unknown Exploration Basis Analyze if coupling remote sensing and field data is effective for determining geothermal areas Notes Thermal infrared (TIR) data from the spaceborne ASTER instrument was used 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. Field measurements

143

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At Coso Geothermal Teleseismic-Seismic Monitoring At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis Determine extent of low velocity body Notes An area showing approximately 0.2-s excess travel time that migrates with changing source azimuth, suggesting that the area is the 'delay shadow' produced by a deep, low-velocity body. Inversion of the relative residual data for three-dimensional velocity structure determines the lateral variations in velocity to a depth of 22.5 km beneath the array. An intense low-velocity body, which coincides with the surface expressions of late Pleistocene rhyolitic volcanism, high heat flow, and hydrothermal activity,

144

Fluid Inclusion Analysis At Coso Geothermal Area (2005-2006) | 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 » Fluid Inclusion Analysis At Coso Geothermal Area (2005-2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (2005-2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2005 - 2006 Usefulness not indicated DOE-funding Unknown Exploration Basis Include more wells from previous analysis Notes This paper focuses on the interpretation of the additional wells (4 bore holes) and comparison to the previous wells. Preliminary correlation

145

2-M Probe Survey At Coso Geothermal Area (2007) | Open Energy Information  

Open Energy Info (EERE)

2-M Probe Survey At Coso Geothermal Area (2007) 2-M Probe Survey At Coso Geothermal Area (2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 2007 Usefulness useful regional reconnaissance DOE-funding Unknown Exploration Basis Analyze if coupling remote sensing and field data is effective for determining geothermal areas using 1-M probe Notes The field data include subsurface temperature measured with temperature probes at depths down to 1 m, surface temperatures recorded with a hand-held infrared camera and an infrared thermometer, reflectance of contrasting surfaces measured with a hand-held spectroradiometer for the purpose of estimating the albedo effect, and radiosonde atmospheric profiles of temperature, water vapor, and pressure in order to apply

146

Electric Micro Imager Log At Coso Geothermal Area (2003) | 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 » Electric Micro Imager Log At Coso Geothermal Area (2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Single-Well and Cross-Well Resistivity At Coso Geothermal Area (2003) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Single-Well and Cross-Well Resistivity Activity Date 2003 Usefulness not indicated DOE-funding Unknown Exploration Basis Fracture/stress analysis Notes A preliminary fracture/stress analysis was conducted for the recently drilled well 38C-9 as part of a continuing effort to characterize the

147

Tectonic setting of the Coso geothermal reservoir | Open Energy Information  

Open Energy Info (EERE)

Tectonic setting of the Coso geothermal reservoir Tectonic setting of the Coso geothermal reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Tectonic setting of the Coso geothermal reservoir Details Activities (1) Areas (1) Regions (0) Abstract: The Coso geothermal reservoir is being developed in Sierran-type crystalline bedrock of the Coso Mountains, a small desert mountain range just to the east of the Sierra Nevada and Rose Valley, which is the southern extension of the Owens Valley of eastern California Optimum development of this reservoir requires an understanding of the fracture hydrology of the Coso Mountains crystalline terrain and its hydrologic connection to regional groundwater and thermal sources. An interpreted, conceptually balanced regional cross section that extends from the Sierra

148

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

Open Energy Info (EERE)

California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian...

149

Cuttings Analysis At Coso Geothermal Area (2005) | Open Energy Information  

Open Energy Info (EERE)

5) 5) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Cuttings Analysis Activity Date 2005 Usefulness not indicated DOE-funding Unknown Exploration Basis EGS well analysis for fractures to determine the geologic framework of the east flank of the field Notes 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 is the hottest well at depth in the East Flank, reaching nearly 350 0C. The reservoir on the East Flank is dominated by diorite and granodiorite. References Kovac, K.M.; Moore, J.N.; Lutz, S.J. (1 January 2005) GEOLOGIC FRAMEWORK OF THE EAST FLANK, COSO GEOTHERMAL FIELD: IMPLICATIONS FOR EGS

150

Fluid Inclusion Analysis At Coso Geothermal Area (2002) | Open Energy  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fluid Inclusion Analysis At Coso Geothermal Area (2002) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fluid Inclusion Analysis Activity Date 2002 Usefulness useful DOE-funding Unknown Notes Analyses were averaged and plotted verses depth (Figure 4). Fluid inclusion gas analyses done on vein minerals from drill hole 68-6 that we earlier analyzed (Adams 2000) were plotted for comparison in order to confirm that similar analyses are obtained from chips and vein minerals. This comparison is far from ideal. The drill holes are better than a kilometer apart, samples analyzed in the two bore holes are not from the same depths, and the chip analyses were performed on the new dual quadrupole system that

151

Geothermal Literature Review At Coso Geothermal Area (1987) | Open Energy  

Open Energy Info (EERE)

7) 7) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermal Literature Review Activity Date 1987 Usefulness not indicated DOE-funding Unknown Exploration Basis Compare multiple theories of the structural control of the geothermal system Notes 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. The identified producing fractures occur in zones which range from 10 - 100s of feet in extent, separated by regions of essentially unfractured rock of similar composition. Wells in the Devil's Kitchen area have encountered fluids in excess of 4500F and flow rates of 1 million lb/hr at depths less than 4000

152

Hydrogeologic investigation of Coso Hot Springs, Inyo County, California.  

Open Energy Info (EERE)

Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Final report October 1977--January 1978 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Final report October 1977--January 1978 Details Activities (2) Areas (1) Regions (0) Abstract: This investigation included: review of existing geologic, geophysical, and hydrologic information; 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; and determination of the

153

Isotope Transport and Exchange within the Coso Geothermal System | Open  

Open Energy Info (EERE)

Transport and Exchange within the Coso Geothermal System Transport and Exchange within the Coso Geothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Isotope Transport and Exchange within the Coso Geothermal System Details Activities (1) Areas (1) Regions (0) Abstract: We are investigating the plumbing of the Coso geothermal system and the nearby Coso Hot Springs using finite element models of single-phase, variable-density fluid flow, conductive- convective heat transfer, fluid-rock isotope exchange, and groundwater residence times. Using detailed seismic reflection data and geologic mapping, we constructed a regional crosssectional model that extends laterally from the Sierra Nevada to Wildhorse Mesa, west of the Argus Range. The base of the model terminates at the brittle-ductile transition zone. A sensitivity study was

154

Coso geothermal environmental overview study ecosystem quality  

DOE Green Energy (OSTI)

The Coso Known Geothermal Resource Area is located just east of the Sierra Nevada, in the broad transition zone between the Mohave and Great Basin desert ecosystems. The prospect of large-scale geothermal energy development here in the near future has led to concern for the protection of biological resources. Objectives here are the identification of ecosystem issues, evaluation of the existing data base, and recommendation of additional studies needed to resolve key issues. High-priority issues include the need for (1) site-specific data on the occurrence of plant and animal species of special concern, (2) accurate and detailed information on the nature and extent of the geothermal resource, and (3) implementation of a comprehensive plan for ecosystem protection.

Leitner, P.

1981-09-01T23:59:59.000Z

155

Geologic Study of the Coso Formation  

DOE Green Energy (OSTI)

There have been great advances in the last 20 years in understanding the volcanic, structural, geophysical, and petrologic development of the Coso Range and Coso geothermal field. These studies have provided a wealth of knowledge concerning the geology of the area, including general structural characteristics and kinematic history. One element missing from this dataset was an understanding of the sedimentology and stratigraphy of well-exposed Cenozoic sedimentary strata - the Coso Formation. 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. While strata in both depocenters is disrupted by faults, these faults show modest displacement, and the intensity and magnitude of faulting does no t record significant extension. For this reason, the extension between the Sierran and Coso blocks is interpreted as minor in comparison to range bounding faults in adjacent areas of the Basin and Range.

D. L. Kamola; J. D. Walker

1999-12-01T23:59:59.000Z

156

Ground magnetic survey in the Coso Range, California | Open Energy  

Open Energy Info (EERE)

Ground magnetic survey in the Coso Range, California Ground magnetic survey in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Ground magnetic survey in the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A ground magnetic study was completed in the Coso volcanic field to investigate faulting and associated hydrothermal alteration patterns. The magnetic intensity contours match general geologic patterns in varying rock types. Hydrothermally altered rocks along intersecting fault zones show up as strong magnetic lows that form a triangular-shaped area. This area is centered in an area of highest heat flow and is a site of concentrated fumarolic activity. In the Coso volcanic field the combination of high heat flow, fumarolic activity, magnetic lows, and hydrothermal

157

Attenuation and source properties at the Coso Geothermal Area, California |  

Open Energy Info (EERE)

source properties at the Coso Geothermal Area, California source properties at the Coso Geothermal Area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Attenuation and source properties at the Coso Geothermal Area, California Details Activities (1) Areas (1) Regions (0) Abstract: We use a multiple-empirical Green's function method to determine source properties of small (M -0.4 to 1.3) earthquakes and P- and S-wave attenuation at the Coso Geothermal Field, California. Source properties of a previously identified set of clustered events from the Coso geothermal region are first analyzed using an empirical Green's function (EGF) method. Stress-drop values of at least 0.5-1 MPa are inferred for all of the events; in many cases, the corner frequency is outside the usable bandwidth, and the stress drop can only be constrained as being higher than

158

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

159

Steady state deformation of the Coso Range, east central California,  

Open Energy Info (EERE)

Steady state deformation of the Coso Range, east central California, Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry Details Activities (2) Areas (1) Regions (0) Abstract: Observations of deformation from 1992 to 1997 in the southern Coso Range using satellite radar interferometry show deformation rates of up to 35 mm yr -1 in an area approximately 10 km by 15 km. The deformation is most likely the result of subsidence in an area around the Coso geothermal field. The deformation signal has a short-wavelength component, related to production in the field, and a long-wavelength component,

160

An isotopic study of the Coso, California, geothermal area | Open Energy  

Open Energy Info (EERE)

study of the Coso, California, geothermal area study of the Coso, California, geothermal area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: An isotopic study of the Coso, California, geothermal area Details Activities (1) Areas (1) Regions (0) Abstract: Thirty-nine water samples were collected from the Coso geothermal system and vicinity and were analyzed for major chemical constituents and deltaD and delta^18/O. Non-thermal ground waters from the Coso Range were found to be isotopically heavier than non-thermal ground waters from the Sierra Nevada to the west. The deltaD value for the deep thermal water at Coso is similar to that of the Sierra water, suggesting that the major recharge for the hydrothermal system comes from the Sierra Nevada rather than from local precipitation on the Coso Range. The delta^18/O values of

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161

Controls on Fault-Hosted Fluid Flow: Preliminary Results from the Coso  

Open Energy Info (EERE)

Controls on Fault-Hosted Fluid Flow: Preliminary Results from the Coso Controls on Fault-Hosted Fluid Flow: Preliminary Results from the Coso Geothermal Field, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Controls on Fault-Hosted Fluid Flow: Preliminary Results from the Coso Geothermal Field, CA Details Activities (1) Areas (1) Regions (0) Abstract: cap rock, permeability, fault, fracture, clay, Coso Author(s): Davatzes, N.C.; Hickman, S.H. Published: Geothermal Resource Council Transactions 2005, 1/1/2005 Document Number: Unavailable DOI: Unavailable Conceptual Model At Coso Geothermal Area (2005-2007) Coso Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Controls_on_Fault-Hosted_Fluid_Flow:_Preliminary_Results_from_the_Coso_Geothermal_Field,_CA&oldid=473359"

162

COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion report.  

Open Energy Info (EERE)

COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion report. COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion report. (Coso Hot Springs KGRA) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion report. (Coso Hot Springs KGRA) Details Activities (1) Areas (1) Regions (0) Abstract: Coso Geothermal Exploratory Hole No. 1 (CGEH No. 1) is the first deep exploratory hole drilled in the Coso Hot Springs area of Southeastern California. CGEH No. 1 was drilled to a depth of 4,845 ft in the central area of a large thermal anomaly and was a continuation of investigative work in that locale to determine the existence of a geothermal resource. The drilling and completion of CGEH No. 1 is described. Also included are the daily drilling reports, drill bit records, descriptions of the casing,

163

Testing operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) |  

Open Energy Info (EERE)

operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Testing operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Details Activities (1) Areas (1) Regions (0) Abstract: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) was drilled to investigate the potential of the Coso Hot Springs Known Geothermal Resource Area (KGRA) in southeastern California. Detailed background information is contained in the drilling plan, Coso Geothermal Exploratory Hole No. 1 (CGEH-1), NVO-184, dated June 1977. The purpose of this supplement to NVO-184 is to establish a plan of operations for testing the resource after completion of well drilling activities. Major elements of this plan include

164

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

165

Structure, tectonics and stress field of the Coso Range, Inyo County,  

Open Energy Info (EERE)

tectonics and stress field of the Coso Range, Inyo County, tectonics and stress field of the Coso Range, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Structure, tectonics and stress field of the Coso Range, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: The tectonics of the Coso Range has been described as having arcuate and ring faults both suggesting the presence of a circumscribed subsidence bowl or calderalike feature. New information suggests the Coso Range is situated in an area of transition between the stress of the right slip San Andreas fault-plate interaction and the extensional tectonics of the Basin and Range. Arcuate faults in the Coso Range are interpreted to have been produced by the regional stress field rather than to have been of

166

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

167

Three-dimensional Q (super -1) model of the Coso Hot Springs known  

Open Energy Info (EERE)

Q (super -1) model of the Coso Hot Springs known Q (super -1) model of the Coso Hot Springs known geothermal resource area (in Coso geothermal area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Three-dimensional Q (super -1) model of the Coso Hot Springs known geothermal resource area (in Coso geothermal area) Details Activities (3) Areas (1) Regions (0) Abstract: Observations of teleseismic P waves above geothermal systems exhibit travel time delays and anomalously high seismic attenuation, which is extremely useful in estimating the thermal regime and the potential of the system. A regional telemetered network of sixteen stations was operated by the U.S. Geological Survey in the Coso Hot Springs Known Geothermal Resources Area (KGRA) for such studies from September 1975 to October 1976.

168

Exploration model for possible geothermal reservoir, Coso Hot Springs KGRA,  

Open Energy Info (EERE)

model for possible geothermal reservoir, Coso Hot Springs KGRA, model for possible geothermal reservoir, Coso Hot Springs KGRA, Inyo Co. , California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Exploration model for possible geothermal reservoir, Coso Hot Springs KGRA, Inyo Co. , California Details Activities (1) Areas (1) Regions (0) Abstract: The purpose of this study was to test the hypothesis that a steam-filled fracture geothermal reservoir exists at Coso Hot Springs KGRA, as proposed by Combs and Jarzabek (1977). Gravity data collected by the USGS (Isherwood and Plouff, 1978) was plotted and compared with the geology of the area, which is well known. An east-west trending Bouguer gravity profile was constructed through the center of the heat flow anomaly described by Combs (1976). The best fit model for the observed gravity at

169

Poisson's ratio and porosity at Coso geothermal area, California | Open  

Open Energy Info (EERE)

Poisson's ratio and porosity at Coso geothermal area, California Poisson's ratio and porosity at Coso geothermal area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Poisson's ratio and porosity at Coso geothermal area, California Details Activities (1) Areas (1) Regions (0) Abstract: High-resolution, three-dimensional, compressional and shear wave velocity models, derived from microearthquake traveltimes, are used to map the distribution of Poisson's ratio and porosity at Coso Geothermal Area, Inyo County, California. Spatial resolution of the three-dimensional Poisson's ratio and porosity distributions is estimated to be 0.5 km horizontally and 0.8 km vertically. Model uncertainties, + or -1% in the interior and + or -2.3% around the edge of the model, are estimated by a jackknife method. We use perturbations of r = V p /V s ratio and Psi = V p

170

Structural investigations at the Coso geothermal area using remote sensing  

Open Energy Info (EERE)

investigations at the Coso geothermal area using remote sensing investigations at the Coso geothermal area using remote sensing information, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Structural investigations at the Coso geothermal area using remote sensing information, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: Remote sensing studies have been made in and adjacent to the Coso geothermal field using TM FCC satellite imagery, 1:100,000 scale, US Geological Survey orthophotos, 1:24,OOO scale, and proprietary black-and-white photography by California Energy Company, Inc., at various scales including black-and-white positive film transparencies at a scale of 1:6,000. These studies have been made in an attempt to understand the complex geology seen on the surface and to try to improve the method of

171

FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR | Open Energy  

Open Energy Info (EERE)

FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR Details Activities (1) Areas (1) Regions (0) Abstract: A fluid model for the Coso geothermal reservoir is developed from Fluid Inclusion Stratigraphy (FIS) analyses. Fluid inclusion gas chemistry in well cuttings collected at 20 ft intervals is analyzed and plotted on well log diagrams. The working hypothesis is that select gaseous species and species ratios indicate areas of groundwater and reservoir fluid flow, fluid processes and reservoir seals. Boiling and condensate zones are distinguished. Models are created using cross-sections and fence diagrams. A thick condensate and boiling zone is indicated across the western portion

172

Three-dimensional magnetotelluric characterization of the Coso geothermal  

Open Energy Info (EERE)

magnetotelluric characterization of the Coso geothermal magnetotelluric characterization of the Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Three-dimensional magnetotelluric characterization of the Coso geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: A dense grid of 125 magnetotelluric (MT) stations plus a single line of contiguous bipole array profiling has been acquired over the east flank of the Coso geothermal system, CA, USA. Due to production related electromagnetic (EM) noise the permanent observatory at Parkfield, CA was used as a remote reference to suppress this cultural EM noise interference. These data have been inverted to a fully three-dimensional (3D) resistivity model. This model shows the controlling geological structures possibly

173

Microearthquake moment tensors from the Coso Geothermal area | Open Energy  

Open Energy Info (EERE)

Microearthquake moment tensors from the Coso Geothermal area Microearthquake moment tensors from the Coso Geothermal area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Microearthquake moment tensors from the Coso Geothermal area Details Activities (1) Areas (1) Regions (0) Abstract: The Coso geothermal area, California, has produced hot water and steam for electricity generation for more than 20 years, during which time there has been a substantial amount of microearthquake activity in the area. Seismicity is monitored by a high-quality permanent network of 16 three-component digital borehole seismometers operated by the US Navy and supplemented by a ~ 14-station portable array of surface three-component digital instruments. The portable stations improve focal sphere coverage, providing seismic-wave polarity and amplitude data sets sufficient for

174

Distribution of quaternary rhyolite dome of the Coso Range, California:  

Open Energy Info (EERE)

of quaternary rhyolite dome of the Coso Range, California: of quaternary rhyolite dome of the Coso Range, California: Implications for extent of the geothermal anomaly Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Distribution of quaternary rhyolite dome of the Coso Range, California: Implications for extent of the geothermal anomaly Details Activities (1) Areas (1) Regions (0) Abstract: 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. Most of the extrusions are probably less than about 0.3 m.y. old. The area is one of Quaternary basaltic volcanism and crustal extension. The central part of

175

Integrated mineralogical and fluid inclusion study of the Coso geothermal  

Open Energy Info (EERE)

mineralogical and fluid inclusion study of the Coso geothermal mineralogical and fluid inclusion study of the Coso geothermal systems, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Integrated mineralogical and fluid inclusion study of the Coso geothermal systems, California Details Activities (1) Areas (1) Regions (0) Abstract: Coso is one of several high-temperature geothermal systems on the margins of the Basin and Range province that is associated with recent volcanic activity. This system, which is developed entirely in fractured granitic and metamorphic rocks, consists of a well-defined thermal plume that originates in the southern part of the field and then flows upward and laterally to the north. Fluid inclusion homogenization temperatures and salinities demonstrate that cool, low salinity ground waters were present

176

Recent earthquake sequences at Coso: Evidence for conjugate faulting and  

Open Energy Info (EERE)

earthquake sequences at Coso: Evidence for conjugate faulting and earthquake sequences at Coso: Evidence for conjugate faulting and stress loading near a geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Recent earthquake sequences at Coso: Evidence for conjugate faulting and stress loading near a geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: Two recent earthquake sequences near the Coso geothermal field show clear evidence of faulting along conjugate planes. We present results from analyzing an earthquake sequence occurring in 1998 and compare it with a similar sequence that occurred in 1996. The two sequences followed mainshocks that occurred on 27 November 1996 and 6 March 1998. Both mainshocks ruptured approximately colocated regions of the same fault

177

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

178

Characterization of subsurface fracture patterns in the Coso geothermal  

Open Energy Info (EERE)

subsurface fracture patterns in the Coso geothermal subsurface fracture patterns in the Coso geothermal reservoir by analyzing shear-wave splitting of microearthquake seismorgrams Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Characterization of subsurface fracture patterns in the Coso geothermal reservoir by analyzing shear-wave splitting of microearthquake seismorgrams Details Activities (1) Areas (1) Regions (0) Abstract: A large number of microearthquake seismograms have been recorded by a downhole, three-component seismic network deployed around the Coso, California geothermal reservoir. Shear-wave splitting induced by the alignment of cracks in the reservoir has been widely observed in the recordings. Over 100 events with body wave magnitude greater than 1.0 from

179

The Coso EGS Project, recent developments (in International collaboration  

Open Energy Info (EERE)

Coso EGS Project, recent developments (in International collaboration Coso EGS Project, recent developments (in International collaboration for geothermal energy in the Americas) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: The Coso EGS Project, recent developments (in International collaboration for geothermal energy in the Americas) Details Activities (3) Areas (1) Regions (0) Abstract: A preliminary fracture/stress analysis was conducted for the recently drilled well 38C-9 as part of a continuing effort to characterize the stress state within the east flank of the Coso geothermal field. Electric Micro Imager (EMI) data were analyzed over the logged interval of 5,881-9,408 ft. Naturally occurring fractures were analyzed in order to determine both fracture dip and azimuth. Most of the fractures dip steeply

180

Fluid Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir |  

Open Energy Info (EERE)

Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Fluid Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir Details Activities (1) Areas (1) Regions (0) Abstract: A fence-diagram for the Coso geothermal reservoir is developed from Fluid Inclusion Stratigraphy (FIS) analyses. Fluid inclusion gas chemistry in well cuttings collected at 20 ft intervals is analyzed and plotted on well log diagrams. The working hypothesis is that select gaseous species and species ratios indicate areas of groundwater and reservoir fluid flow, fluid processes and reservoir seals. Boiling and condensate zones are distinguished. Permeable zones are indicated by a large change in

Note: This page contains sample records for the topic "details location coso" 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

Late Cenozoic volcanism, geochronology, and structure of the Coso Range,  

Open Energy Info (EERE)

Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Range lies at the west edge of the Great Basin, adjacent to the southern part of the Sierra Nevada. A basement complex of pre-Cenozoic plutonic and metamorphic rocks is partly buried by approx.35 km^3 of late Cenozoic volcanic rocks that were erupted during two periods, as defined by K-Ar dating: (1) 4.0--2.5 m.y., approx.31 km^3 of basalt, rhyodacite, dacite, andesite, and rhyolite, in descending order of abundance, and (2) < or =1.1 m.y., nearly equal amounts of basalt and

182

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

183

Further Analysis of 3D Magnetotelluric Measurements Over the Coso  

Open Energy Info (EERE)

Further Analysis of 3D Magnetotelluric Measurements Over the Coso Further Analysis of 3D Magnetotelluric Measurements Over the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Further Analysis of 3D Magnetotelluric Measurements Over the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: At last year's GRC annual meeting we presented initial results of a 3D investigation of the Coso Geothermal field utilizing a dense grid of magnetotelluric (MT) stations plus a single line of contiguous bipole array profiling over the east flank of the field (Newman et al., 2005). Motivation for this study is that electrical resistivity/ conductivity mapping can contribute to better improved understanding of enhanced geothermal systems (EGS) by imaging the geometry, bounds and controlling

184

Heat flow studies, Coso Geothermal Area, China Lake, California. Technical  

Open Energy Info (EERE)

studies, Coso Geothermal Area, China Lake, California. Technical studies, Coso Geothermal Area, China Lake, California. Technical report Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Heat flow studies, Coso Geothermal Area, China Lake, California. Technical report Details Activities (1) Areas (1) Regions (0) Abstract: Heat flow studies in the Coso Geothermal Area were conducted at China Lake, California. Temperature measurements were completed in nine of the heat flow boreholes. Temperatures were measured at five meter intervals from the ground surface to the deepest five meter interval. Subsequently, temperatures were remeasured two or three times in each borehole in order to demonstrate that equilibrium thermal conditions existed. The maximum difference in temperature, at any of the five meter intervals, was 0.03 deg

185

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

186

Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal  

Open Energy Info (EERE)

Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area, California Details Activities (1) Areas (1) Regions (0) Abstract: Coso is one of several high-temperature geothermal systems associated with recent volcanic activity in the Basin and Range province. Chemical and fluid inclusion data demonstrate that production is from a narrow, asymmetric plume of thermal water that originates from a deep reservoir to the south and then flows laterally to the north. Geologic controls on the geometry of the upwelling plume were investigated using petrographic and analytical analyses of reservoir rock and vein material.

187

2-M Probe Survey At Coso Geothermal Area (1979) | Open Energy Information  

Open Energy Info (EERE)

9) 9) Exploration Activity Details Location Coso Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 1979 Usefulness useful DOE-funding Unknown Exploration Basis Correct previously analyzed 2-m probe data Notes Corrected 2-m temperature anomaly at Coso was compared with a low altitude aeromagnetic anomaly and an anomaly outlined by electrical resistivity methods obtained independently. Preliminary tests were made with a simple thermal conductivity probe demonstrating the feasibility of measuring soil thermal diffusivity at the time the 2-m temperatures are recorded. References Leschack, L. A.; Lewis, J. E.; Chang, D. C.; Lewellen, R. I.; O'Hara, N.W. (1 March 1979) Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Second technical report

188

Micro-Earthquake At Coso Geothermal Area (2000) | Open Energy Information  

Open Energy Info (EERE)

0) 0) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (2000) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2000 Usefulness not indicated DOE-funding Unknown Exploration Basis Compare results of dense arrays with less densely spaced instruments Notes Results from a dense array of passive seismometers are presented. Data collected during the 18-month deployment of 16 dense mini-arrays in the region of the China Lake geothermal field near Ridgecrest, CA was used. The crustal structure within the geothermal field, its relationship to regional tectonic features, and search for an indication of mantle influence on volcanism was imaged. The mini-arrays consist of mostly short period

189

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1996-2004) | Open  

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4) 4) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (1996-2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1996 - 2004 Usefulness useful DOE-funding Unknown Exploration Basis To look at time dependent seismic tomography Notes Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy's permanent seismometer network. The results show irregular strengthening with time of the wave-speed ratio V p/V s at shallow depths. The period from 1996 through 2006 was studied, and the results to date using the traditional method show, for a 2-km horizontal grid spacing, an irregular strengthening

190

Micro-Earthquake At Coso Geothermal Area (2002-2005) | Open Energy  

Open Energy Info (EERE)

-2005) -2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Coso Geothermal Area (2002-2005) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2002 - 2005 Usefulness not indicated DOE-funding Unknown Exploration Basis To improve understanding of the subsurface fracture system Notes A shear-wave splitting technique was applied on a set of high quality, locally recorded microearthquake (MEQ) data. Four major fracture directions have been identified from the seismograms recorded by the permanent 16-station down-hole array: N10- 20W, NS, N20E, and N40-45E, of which the first and the third are the most prominent. All orientations are consistent with the known strike of local sets of faults and fractures at depth and at

191

Numerical Modeling At Coso Geothermal Area (1997) | Open Energy Information  

Open Energy Info (EERE)

7) 7) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Numerical Modeling Activity Date 1997 Usefulness useful DOE-funding Unknown Exploration Basis Develop tool to identify low velocity zones by modeling fault-zone guided waves of microearthquakes Notes A numerical method has been employed to simulate the guided-wave propagation from microearthquakes through the fault zone. By comparing observed and synthetic waveforms the fault-zone width and its P-wave and S-wave velocity structure have been estimated. It is suggested that the identification and modeling of guided waves is an effective tool to locate fracture-induced, low-velocity fault-zone structures in geothermal fields. References Lou, M.; Rial, J.A. ; Malin, P.E. (1 July 1997) Modeling

192

COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion...  

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COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion report. (Coso Hot Springs KGRA) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: COSO Geothermal...

193

Dipole-dipole resistivity survey of a portion of the Coso Hot Springs KGRA,  

Open Energy Info (EERE)

dipole resistivity survey of a portion of the Coso Hot Springs KGRA, dipole resistivity survey of a portion of the Coso Hot Springs KGRA, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Dipole-dipole resistivity survey of a portion of the Coso Hot Springs KGRA, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: A detailed electrical resistivity survey of 54 line-km was completed at the Coso Hot Springs KGRA in September 1977. This survey has defined a bedrock resistivity low at least 4 sq mi (10 sq km) in extent associated with the geothermal system at Coso. The boundaries of this low are generally well defined to the north and west but not as well to the south where an approximate southern limit has been determined. The bedrock resistivity low merges with an observed resistivity low over gravel fill

194

Cuttings Analysis At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

80) 80) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the heat transfer mechanism Notes In an investigation of the thermal regime of this Basin and Range geothermal area, temperature measurements were made in 25 shallow and 1 intermediate depth borehole. Thermal conductivity measurements were made on 312 samples from cores and drill cuttings. The actual process by which heat is transferred is rather complex; however, the heat flow determinations can be divided into two groups. The first group, less than 4.0 HFU, are indicative of regions with primarily conductive regimes, although deep-seated mass transfer is implied. The second group, greater than 4.0

195

Aeromagnetic Survey At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

80) 80) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Aeromagnetic Survey Activity Date 1980 Usefulness not indicated DOE-funding Unknown Notes Dense, magnetic rocks associated with a complex mafic pluton 9 km in diameter form a relatively impermeable north border of the Pleistocene volcanic field. A heat flow high nearly coincides with the west half of a 6-km-diameter magnetic low. A 2-km-diameter outcrop of a pre-Cenozoic silicic pluton, which has low magnetization compared to the surrounding metamorphic rocks, presumably typifies the rocks that underlie the magnetic low and heat flow high. Hydrothermal fluids may have destroyed some magnetite in the more magnetic wall rock, further reducing the magnetic intensity. References

196

Three-dimensional V p /V s variations for the Coso region, California |  

Open Energy Info (EERE)

p /V s variations for the Coso region, California p /V s variations for the Coso region, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Three-dimensional V p /V s variations for the Coso region, California Details Activities (1) Areas (1) Regions (0) Abstract: Recent seismological studies of the Coso region of southeastern California document both low P wave velocities and abnormal SV attenuation in Indian Wells Valley, south of the Pleistocene volcanics of the Coso Range. In order to learn more about the physical nature of these colocated anomalies, a tomographic inversion for the three-dimensional variations of Vp /Vs the ratio of compressional to shear velocity was performed. Iterative back projection of 2966 shear and compressional wave travel time residuals from local earthquakes recorded on vertical instruments reveals

197

A gravity model for the Coso geothermal area, California | Open Energy  

Open Energy Info (EERE)

gravity model for the Coso geothermal area, California gravity model for the Coso geothermal area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: A gravity model for the Coso geothermal area, California Details Activities (1) Areas (1) Regions (0) Abstract: Two- and three-dimensional gravity modeling was done using gridded Bouguer gravity data covering a 45 x 45 km region over the Coso geothermal area in an effort to identify features related to the heat source and to seek possible evidence for an underlying magma chamber. Isostatic and terrain corrected Bouguer gravity data for about 1300 gravity stations were obtained from the US Geological Survey. After the data were checked, the gravity values were gridded at 1 km centers for the area of interest centered on the Coso volcanic field. Most of the gravity

198

P wave velocity variations in the Coso region, California, derived from  

Open Energy Info (EERE)

P wave velocity variations in the Coso region, California, derived from P wave velocity variations in the Coso region, California, derived from local earthquake travel times Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: P wave velocity variations in the Coso region, California, derived from local earthquake travel times Details Activities (1) Areas (1) Regions (0) Abstract: Inversion of 4036 P wave travel time residuals from 429 local earthquakes using a tomographic scheme provides information about three-dimensional upper crustal velocity variations in the Indian Wells Valley-Coso region of southeastern California. The residuals are calculated relative to a Coso-specific velocity model, corrected for station elevation, weighted, and back-projected along their ray paths through models defined with layers of blocks. Slowness variations in the surface

199

Anomalous shear wave attenuation in the shallow crust beneath the Coso  

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Anomalous shear wave attenuation in the shallow crust beneath the Coso Anomalous shear wave attenuation in the shallow crust beneath the Coso volcanic region, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Anomalous shear wave attenuation in the shallow crust beneath the Coso volcanic region, California Details Activities (1) Areas (1) Regions (0) Abstract: We use seismograms of local earthquakes to image relative shear wave attenuation structure in the shallow crust beneath the region containing the Coso volcanic-geothermal area of eastern California. SV and P wave amplitudes were measured from vertical component seismograms of earthquakes that occurred in the Coso-southern Sierra Nevada region from July 1983 to 1985. Seismograms of 16 small earthquakes show SV amplitudes which are greatly diminished at some azimuths and takeoff angles,

200

Coso Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area Coso Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Coso Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 2.1 DOE Involvement 2.2 Time Line 3 Regulatory and Environmental Issues 4 Future Plans 5 Exploration History 6 Well Field Description 7 Research and Development Activities 8 Technical Problems and Solutions 9 Geology of the Area 9.1 Regional Setting 9.2 Structure 9.3 Stratigraphy 10 Hydrothermal System 11 Heat Source 12 Geofluid Geochemistry 13 NEPA-Related Analyses (1) 14 Exploration Activities (132) 15 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":36.04701,"lon":-117.76854,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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201

Deformation and seismicity in the Coso geothermal area, Inyo County,  

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 » Deformation and seismicity in the Coso geothermal area, Inyo County, California, observations and modeling using satellite radar interferometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Deformation and seismicity in the Coso geothermal area, Inyo County, California, observations and modeling using satellite radar interferometry Details Activities (2) Areas (1) Regions (0) Abstract: Interferometric synthetic aperture radar (InSAR) data collected in the Coso geothermal area, eastern California, during 1993-1999 indicate ground subsidence over a approximately 50 km 2 region that approximately

202

MAGNETOTELLURIC SURVEYING AND MONITORING AT THE COSO GEOTHERMAL AREA,  

Open Energy Info (EERE)

SURVEYING AND MONITORING AT THE COSO GEOTHERMAL AREA, SURVEYING AND MONITORING AT THE COSO GEOTHERMAL AREA, CALIFORNIA, IN SUPPORT OF THE ENHANCED GEOTHERMAL SYSTEMS CONCEPT: SURVEY PARAMETERS AND INITIAL RESULTS Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: MAGNETOTELLURIC SURVEYING AND MONITORING AT THE COSO GEOTHERMAL AREA, CALIFORNIA, IN SUPPORT OF THE ENHANCED GEOTHERMAL SYSTEMS CONCEPT: SURVEY PARAMETERS AND INITIAL RESULTS Details Activities (1) Areas (1) Regions (0) Abstract: Electrical resistivity may contribute to progress in enhanced geothermal systems (EGS) by imaging the geometry, bounds and controlling structures in existing production, and by monitoring changes in the underground resistivity properties in the vicinity of injection due to fracture porosity enhancement. To these ends, we are acquiring a dense grid

203

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

204

Fluid Inclusion Stratigraphy: Interpretation of New Wells in the Coso  

Open Energy Info (EERE)

Stratigraphy: Interpretation of New Wells in the Coso Stratigraphy: Interpretation of New Wells in the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Fluid Inclusion Stratigraphy: Interpretation of New Wells in the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: This paper focuses on the interpretation of the additional wells (4 bore holes) and comparison to the previous wells. Preliminary correlation between wells is also presented. Analyses from multiple boreholes show fluid stratigraphy that correlates from well to well. The wells include large producers, small to moderate producers, problem producers, injectors, and non producers Author(s): Dilley, L.M.; Newman, D.L. ; McCulloch, J.; Wiggett, G. Published: Geothermal Resource Council Transactions 2005, 1/1/2005

205

USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF THE COSO  

Open Energy Info (EERE)

USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF THE COSO USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF THE COSO GEOTHERMAL FIELD Details Activities (1) Areas (1) Regions (0) Abstract: During December of 1999, approximately 32 miles of seismic data were acquired within the Coso Geothermal Field, Inyo County, California, as part of a detailed seismic investigation undertaken by the US Navy Geothermal Program Office. Data acquisition was designed to make effective use of advanced data processing methods, which include Optim's proprietary nonlinear velocity optimization technique and pre-stack Kirchhoff migration. The nonlinear optimization technique is used to obtain high

206

Low-altitude aeromagnetic survey of a portion of the Coso Hot Springs KGRA,  

Open Energy Info (EERE)

altitude aeromagnetic survey of a portion of the Coso Hot Springs KGRA, altitude aeromagnetic survey of a portion of the Coso Hot Springs KGRA, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Low-altitude aeromagnetic survey of a portion of the Coso Hot Springs KGRA, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: A detailed low-altitude aeromagnetic survey of 576 line-mi (927 line-km) was completed over a portion of the Coso Hot Springs KGRA in September 1977. The survey has defined a pronounced magnetic low that could help delineate the geothermal system. The magnetic low has an areal extent of approximately 10 sq mi (26 sq km). Direct and indirect evidence indicates that this anomaly is due, in part, to magnetite destruction by hydrothermal solutions associated with the geothermal system. The anomaly

207

Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA | Open  

Open Energy Info (EERE)

Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Details Activities (3) Areas (2) Regions (0) Abstract: Three wells have been drilled by the Los Angeles Department of Water and Power at the Coso Hot Springs KGRA. A long-term flow test was conducted involving one producing well (well 43-7), one injector (well 88-1), and two observation wells (well 66-6 and California Energy Co's well 71A-7). This paper presents the equipment and techniques involved and the results from the long-term test conducted between December 1985 and February 1986. Author(s): Sanyal, S.; Menzies, A.; Granados, E.; Sugine, S.;

208

Time-Dependent Seismic Tomography of the Coso Geothermal Area, 1996-2004 |  

Open Energy Info (EERE)

Dependent Seismic Tomography of the Coso Geothermal Area, 1996-2004 Dependent Seismic Tomography of the Coso Geothermal Area, 1996-2004 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 Details Activities (1) Areas (1) Regions (0) Abstract: Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy's permanent seismometer network at the Coso geothermal area, California. The results show irregular strengthening with time of the wave-speed ratio VP/VS at shallow depths. These changes result predominately from progressive relative increase in VS with respect to VP, and could result from processes associated with geothermal operations such as decrease in fluid pressure

209

TRACING FLUID SOURCES IN THE COSO GEOTHERMAL SYSTEM USING FLUID-INCLUSION  

Open Energy Info (EERE)

TRACING FLUID SOURCES IN THE COSO GEOTHERMAL SYSTEM USING FLUID-INCLUSION TRACING FLUID SOURCES IN THE COSO GEOTHERMAL SYSTEM USING FLUID-INCLUSION GAS CHEMISTRY Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: TRACING FLUID SOURCES IN THE COSO GEOTHERMAL SYSTEM USING FLUID-INCLUSION GAS CHEMISTRY Details Activities (1) Areas (1) Regions (0) Abstract: Vein and alteration assemblages from eight Coso wells have been collected and their fluid-inclusion gases analyzed by quadrupole mass spectrometry. Four major types of alteration were sampled: 1) young calcite-hematite-pyrite veins; 2) wairakite or epidote veins and alteration that are spatially associated with deep reservoirs in the main field and eastern wells; 3) older sericite and pyrite wallrock alteration; and 4) stilbite-calcite veins that are common in cooler or marginal portions of

210

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

211

Static downhole characteristics of well CGEH-1 at Coso Hot Springs, China  

Open Energy Info (EERE)

downhole characteristics of well CGEH-1 at Coso Hot Springs, China downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Static downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Details Activities (5) Areas (1) Regions (0) Abstract: A series of measurements was made in the exploratory well CGEH-1 at Coso Hot Springs. The temperature measurements provide estimates for the thermal equilibration of the well and indicate that the fractures intersecting the well have different temperatures. The hottest fractures are in the upper-cased portion of the well. Downhole chemical sampling suggests that the borehole still contains remnants of drilling materials. The well has never been extensively flowed at this time.

212

IN SITU STRESS, FRACTURE AND FLUID FLOW ANALYSIS-EAST FLANK OF THE COSO  

Open Energy Info (EERE)

IN SITU STRESS, FRACTURE AND FLUID FLOW ANALYSIS-EAST FLANK OF THE COSO IN SITU STRESS, FRACTURE AND FLUID FLOW ANALYSIS-EAST FLANK OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: IN SITU STRESS, FRACTURE AND FLUID FLOW ANALYSIS-EAST FLANK OF THE COSO GEOTHERMAL FIELD Details Activities (1) Areas (1) Regions (0) Abstract: High rock temperatures, a high degree of fracturing, high tectonic stresses, and low permeability are the combination of qualities that define an ideal candidate-Enhanced Geothermal System (EGS) reservoir. The Coso Geothermal Field is an area where fluid temperatures exceeding 300°C have been measured at depths less than 10,000 feet and the reservoir is both highly fractured and tectonically stressed. Some of the wells within this portion of the reservoir are relatively impermeable,

213

Coincident P and Sh reflections from basement rocks at Coso geothermal  

Open Energy Info (EERE)

Coincident P and Sh reflections from basement rocks at Coso geothermal Coincident P and Sh reflections from basement rocks at Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Coincident P and Sh reflections from basement rocks at Coso geothermal field Details Activities (2) Areas (1) Regions (0) Abstract: In mid-1989 the authors designed and collected four seismic reflection/refraction profiles that addressed the crustal structure of the Coso geothermal field. The two main east-west and north-south profiles crossed at the southeasternmost base of Sugar Loaf Mountain. Both in-line and cross-line Vibroseis and explosion data were recorded on each of these approximately 12-mi lines. This was accomplished with the simultaneous operation of two 1024-channel sign bit recording systems while four

214

Coso: example of a complex geothermal reservoir. Final report, 1984-1985 |  

Open Energy Info (EERE)

Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Details Activities (1) Areas (1) Regions (0) Abstract: The Coso geothermal system has been widely studied and reported by scientists through the past several years, but there is still a considerable divergence of opinion regarding the structural setting, origin, and internal structure of this energy resource. Because of accelerating exploration and development drilling that is taking place, there is a need for a reservoir model that is consistent with the limited geologic facts available regarding the area. Author(s): Austin, C.F.; Durbin, W.F.

215

The nascent Coso metamorphic core complex, east-central California, brittle  

Open Energy Info (EERE)

nascent Coso metamorphic core complex, east-central California, brittle nascent Coso metamorphic core complex, east-central California, brittle upper plate structure revealed by reflection seismic data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: The nascent Coso metamorphic core complex, east-central California, brittle upper plate structure revealed by reflection seismic data Details Activities (1) Areas (1) Regions (0) Abstract: The relationships between upper crustal faults, the brittle-ductile transition zone, and underlying magmatic features imaged by multifold seismic reflection data are consistent with the hypothesis that the Coso geothermal field, which lies within an extensional step-over between dextral faults, is a young, actively developing metamorphic core complex. The reflection images were processed using a non-linear simulated

216

Geology and alteration of the Coso Geothermal Area, Inyo County, 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 » Geology and alteration of the Coso Geothermal Area, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geology and alteration of the Coso Geothermal Area, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: Geology and alteration of the Coso geothermal area were mapped in conjunction with geophysical surveys and a deep drill test (CGEH-1) to facilitate selection of a follow-up drill site. The oldest rocks exposed at Coso are intermediate to mafic metamorphic rocks of uncertain age intruded by dikes and pods of quartz latite porphyry and felsite, and by a small

217

Heat flow determinations and implied thermal regime of the Coso geothermal  

Open Energy Info (EERE)

determinations and implied thermal regime of the Coso geothermal determinations and implied thermal regime of the Coso geothermal area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Heat flow determinations and implied thermal regime of the Coso geothermal area, California Details Activities (1) Areas (1) Regions (0) Abstract: Obvious surface manifestations of an anomalous concentration of geothermal energy at the Coso Geothermal Area, California, include fumarolic activity, active hot springs, and associated hydrothermally altered rocks. Abundant Pleistocene volcanic rocks, including a cluster of thirty-seven rhyolite domes, occupy a north-trending structural and topographic ridge near the center of an oval-shaped zone of late Cenozoic ring faulting. In an investigation of the thermal regime of the geothermal

218

Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 |  

Open Energy Info (EERE)

of the Coso geothermal area, 1996-2004 of the Coso geothermal area, 1996-2004 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 Details Activities (1) Areas (1) Regions (0) Abstract: Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy's permanent seismometer network at the Coso geothermal area, California. The results show irregular strengthening with time of the wave-speed ratio VP/VS at shallow depths. These changes result predominately from progressive relative increase in VS with respect to VP, and could result from processes associated with geothermal operations such as decrease in fluid pressure and the drying of argillaceous minerals such as illite.

219

Variation in sericite composition from fracture zones within the Coso Hot  

Open Energy Info (EERE)

Variation in sericite composition from fracture zones within the Coso Hot Variation in sericite composition from fracture zones within the Coso Hot Sprints geothermal system Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Variation in sericite composition from fracture zones within the Coso Hot Sprints geothermal system Details Activities (1) Areas (1) Regions (0) Abstract: Two types of white micas are found in drillhole samples within the geothermal system at Coso Hot Springs. Low-permeability zones of the crystalline basement contain coarse-grained relict muscovite, whereas rock alteration near fracture zones at temperatures > 150°C is characterized by abundant finegrained sericite in association with secondary calcite and quartz and unaltered relict microcline. In this hydrothermal sericite there

220

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

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221

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

222

Three-dimensional P and S waves velocity structures of the Coso geothermal  

Open Energy Info (EERE)

P and S waves velocity structures of the Coso geothermal P and S waves velocity structures of the Coso geothermal area, California, from microseismic travel time data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Three-dimensional P and S waves velocity structures of the Coso geothermal area, California, from microseismic travel time data Details Activities (1) Areas (1) Regions (0) Abstract: High precision P and S wave travel times for 2104 microearthquakes with focus <6 km are used in a non-linear inversion to derive high-resolution three-dimensional compressional and shear velocity structures at the Coso Geothermal Area in eastern California. Block size for the inversion is 0.2 km horizontally and 0.5 km vertically and inversions are investigated in the upper 5 km of the geothermal area.

223

Variations in dissolved gas compositions of reservoir fluids from the Coso  

Open Energy Info (EERE)

Variations in dissolved gas compositions of reservoir fluids from the Coso Variations in dissolved gas compositions of reservoir fluids from the Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Variations in dissolved gas compositions of reservoir fluids from the Coso geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: Gas concentrations and ratios in 110 analyses of geothermal fluids from 47 wells in the Coso geothermal system illustrate the complexity of this two-phase reservoir in its natural state. Two geographically distinct regions of single-phase (liquid) reservoir are present and possess distinctive gas and liquid compositions. Relationships in soluble and insoluble gases preclude derivation of these waters from a common parent by boiling or condensation alone. These two regions may

224

Heat flow studies, Coso Geothermal Area, China Lake, California...  

Open Energy Info (EERE)

studies, Coso Geothermal Area, China Lake, California. Technical report Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Heat flow studies, Coso Geothermal...

225

Evaluation of Coso Geothermal Exploratory Hole No. 1 (CGEH-1...  

Open Energy Info (EERE)

Evaluation of Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Springs: KGRA, China Lake, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference...

226

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

227

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

228

Attenuation structure of Coso geothermal area, California, from...  

Open Energy Info (EERE)

Number: Unavailable DOI: Unavailable Source: View Original Journal Article Micro-Earthquake At Coso Geothermal Area (1996) Coso Geothermal Area Retrieved from "http:...

229

Coso Junction, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Coso Junction, California: Energy Resources Jump to: navigation, search Name Coso Junction, California Equivalent URI DBpedia GeoNames ID 5339829 Coordinates 36.0449439°, -117.9472993° 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":36.0449439,"lon":-117.9472993,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

230

Operations plan Coso geothermal exploratory hole No. 1 (CGEH-1) | Open  

Open Energy Info (EERE)

plan Coso geothermal exploratory hole No. 1 (CGEH-1) plan Coso geothermal exploratory hole No. 1 (CGEH-1) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Operations plan Coso geothermal exploratory hole No. 1 (CGEH-1) Details Activities (1) Areas (1) Regions (0) Abstract: An investigative program is described, involving the drilling and testing of an exploratory hole to a nominal depth of 4,000 feet with an option to drill to a depth of 6,000 feet. The following are covered: management and organizational concept; program elements--description, detailed drilling program; materials, services, and equipment provided by ERDA, NWC; site selection; site access and security; health and safety; permits and approvals; reporting; environmental impact; funding; schedule of activities; and public information. The license and reporting forms are

231

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

232

Heat flow in the Coso geothermal area, Inyo County, California | Open  

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 » Heat flow in the Coso geothermal area, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Heat flow in the Coso geothermal area, Inyo County, California Details Activities (2) Areas (1) Regions (0) Abstract: Obvious surface manifestations of an anomalous concentration of geothermal resources at the Coso geothermal area, Inyo County, California, include fumarolic activity and associated hydrothermally altered rocks. Pleistocene volcanic rocks associated with the geothermal activity include 38 rhyolite domes occupying a north trending structural and topographic

233

Time-dependent seismic tomography and its application to the Coso  

Open Energy Info (EERE)

and its application to the Coso and its application to the Coso geothermal area, 1996-2006 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Time-dependent seismic tomography and its application to the Coso geothermal area, 1996-2006 Details Activities (1) Areas (1) Regions (0) Abstract: Measurements of temporal changes in Earth structure are commonly determined using local earthquake tomography computer programs that invert multiple seismic-wave arrival time data sets separately and assume that any differences in the structural results arise from real temporal variations. This assumption is dangerous because the results of repeated tomography experiments would differ even if the structure did not change, simply because of variation in the seismic ray distribution caused by the natural

234

Stress and fault rock controls on fault zone hydrology, Coso geothermal  

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 » Stress and fault rock controls on fault zone hydrology, Coso geothermal field, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Stress and fault rock controls on fault zone hydrology, Coso geothermal field, CA Details Activities (1) Areas (1) Regions (0) Abstract: In crystalline rock of the Coso Geothermal Field, CA, fractures are the primary source of permeability. At reservoir depths, borehole image, temperature, and mud logs indicate fluid flow is concentrated in extensively fractured damage zones of large faults well-oriented for slip.

235

COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL  

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 » COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL FIELD, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL FIELD, CA Details Activities (1) Areas (1) Regions (0) Abstract: Electrical and acoustic image logs collected from well 58A-10 in crystalline rock on the eastern margin of the Coso Geothermal Field, CA, reveal different populations of planar structures intersecting the borehole. Electrical image logs appear to be sensitive to variations in

236

The nascent Coso metamorphic core complex, east-central California...  

Open Energy Info (EERE)

in the upper 5 km of the Mesozoic intrusive bedrock of the Coso Range. The Coso Wash fault and other late Pleistocene and Holocene normal faults in, and adjacent to, the...

237

Heat flow and microearthquake studies, Coso Geothermal Area, China Lake, California. Final report  

DOE Green Energy (OSTI)

The present research effort at the Coso Geothermal Area located on the China Lake Naval Weapons Center, China Lake, California, was concerned with: (1) heat flow studies and (2) microearthquake studies associated with the geothermal phenomena in the Coso Hot Springs area. The sites for ten heat flow boreholes were located primarily using the available seismic ground noise and electrical resistivity data. Difficulty was encountered in the drilling of all of the holes due to altered, porous, faulted, and sometime highly fractures zones. Thermal conductivity measurements were completed using both the needle probe technique and the divided bar apparatus with a cell arrangement. Heat flow values were obtaned by combining equilibrium temperature measurements with the appropriate thermal conductivity values. Heat, in the upper few hundred meters of the subsurface associated with the Coso Geothermal Area, is being transferred by a conductive heat transfer mechanism with a value of approximately 15 ..mu..cal/cm/sup 2/-sec. This is typical of geothermal systems throughout the world and is approximately ten times the normal terrestrial heat flow of 1.5 HFU. The background heat flow for the Coso region is about 3.5 HFU.

Combs, J.

1975-01-01T23:59:59.000Z

238

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

239

Steady state deformation of the Coso Range, east central California...  

Open Energy Info (EERE)

Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

240

Integrated mineralogical and fluid inclusion study of the Coso...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon Integrated mineralogical and fluid inclusion study of the Coso geothermal systems, California...

Note: This page contains sample records for the topic "details location coso" 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.
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to obtain the most current and comprehensive results.


241

Three-dimensional magnetotelluric characterization of the Coso...  

Open Energy Info (EERE)

has been acquired over the east flank of the Coso geothermal system, CA, USA. Due to production related electromagnetic (EM) noise the permanent observatory at Parkfield, CA was...

242

Chemical and isotopic characteristics of the coso east flank...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Chemical and isotopic characteristics of the coso east flank hydrothermal fluids: implications...

243

Hydrogeologic investigation of Coso Hot Springs, Inyo County...  

Open Energy Info (EERE)

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...

244

Detection of Surface Temperature Anomalies in the Coso Geothermal...  

Open Energy Info (EERE)

of Surface Temperature Anomalies in the Coso Geothermal Field Using Thermal Infrared Remote Sensing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference...

245

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...

246

Heat flow determinations and implied thermal regime of the Coso...  

Open Energy Info (EERE)

determinations and implied thermal regime of the Coso geothermal area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Heat flow...

247

TRACING FLUID SOURCES IN THE COSO GEOTHERMAL SYSTEM USING FLUID...  

Open Energy Info (EERE)

TRACING FLUID SOURCES IN THE COSO GEOTHERMAL SYSTEM USING FLUID-INCLUSION GAS CHEMISTRY Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: TRACING...

248

Cuttings Analysis At Coso Geothermal Area (1977) | Open Energy...  

Open Energy Info (EERE)

Unknown Notes Chip samples were collected at ten foot intervals. References Galbraith, R. M. (1 May 1978) Geological and geophysical analysis of Coso Geothermal Exploration Hole...

249

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

Open Energy Info (EERE)

P wave anisotropy, stress, and crack distribution at Coso geothermal field, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: P wave...

250

MAGNETOTELLURIC SURVEYING AND MONITORING AT THE COSO GEOTHERMAL...  

Open Energy Info (EERE)

SURVEYING AND MONITORING AT THE COSO GEOTHERMAL AREA, CALIFORNIA, IN SUPPORT OF THE ENHANCED GEOTHERMAL SYSTEMS CONCEPT: SURVEY PARAMETERS AND INITIAL RESULTS Jump to: navigation,...

251

Structure, tectonics and stress field of the Coso Range, Inyo...  

Open Energy Info (EERE)

as having arcuate and ring faults both suggesting the presence of a circumscribed subsidence bowl or calderalike feature. New information suggests the Coso Range is situated in...

252

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...

253

Progress report on electrical resistivity studies, COSO Geothermal...  

Open Energy Info (EERE)

Progress report on electrical resistivity studies, COSO Geothermal Area, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Progress...

254

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...

255

Recent earthquake sequences at Coso: Evidence for conjugate faulting...  

Open Energy Info (EERE)

Recent earthquake sequences at Coso: Evidence for conjugate faulting and stress loading near a geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal...

256

P wave velocity variations in the Coso region, California, derived...  

Open Energy Info (EERE)

P wave velocity variations in the Coso region, California, derived from local earthquake travel times Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal...

257

Remote sensing survey of the Coso geothermal area, Inyo county...  

Open Energy Info (EERE)

sensing survey of the Coso geothermal area, Inyo county, California. Technical publication 1968--1971 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Remote...

258

Distribution of quaternary rhyolite dome of the Coso Range, California...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Distribution of quaternary rhyolite dome of the Coso Range, California: Implications for extent...

259

COSO Geothermal Exploratory Hole No. 1, CGEH No. 1. Completion report. [Coso Hot Springs KGRA  

DOE Green Energy (OSTI)

Coso Geothermal Exploratory Hole No. 1 (CGEH No. 1) is the first deep exploratory hole drilled in the Coso Hot Springs area of Southeastern California. CGEH No. 1 was drilled to a depth of 4,845 ft in the central area of a large thermal anomaly and was a continuation of investigative work in that locale to determine the existence of a geothermal resource. The drilling and completion of CGEH No. 1 is described. Also included are the daily drilling reports, drill bit records, descriptions of the casing, cementing, logging and coring program, and the containment equipment used during the drilling operation.

Not Available

1978-03-01T23:59:59.000Z

260

Imaging the Coso geothermal area crustal structure with an array of  

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 » Imaging the Coso geothermal area crustal structure with an array of high-density mini-arrays Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Imaging the Coso geothermal area crustal structure with an array of high-density mini-arrays Details Activities (1) Areas (1) Regions (0) Abstract: Advances in passive seismic data collecting and processing have produced higher resolution images of the crust and mantle than have been previously obtainable. The Earth is appearing to be more heterogeneous than was thought when only rougher scale observations were available. Here we

Note: This page contains sample records for the topic "details location coso" 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.


261

Seismotectonics of the Coso Range-Indian Wells Valley region...  

Open Energy Info (EERE)

Journal Geological Society of America, 2002 DOI 10.11300-8137-1195-9.277 Online Internet link for Seismotectonics of the Coso Range-Indian Wells Valley region, California:...

262

Exploration model for possible geothermal reservoir, Coso Hot...  

Open Energy Info (EERE)

reservoir exists at Coso Hot Springs KGRA, as proposed by Combs and Jarzabek (1977). Gravity data collected by the USGS (Isherwood and Plouff, 1978) was plotted and compared with...

263

The Coso EGS Project, recent developments (in International collaborat...  

Open Energy Info (EERE)

to characterize the stress state within the east flank of the Coso geothermal field. Electric Micro Imager (EMI) data were analyzed over the logged interval of 5,881-9,408 ft....

264

A gravity model for the Coso geothermal area, California  

DOE Green Energy (OSTI)

Two- and three-dimensional gravity modeling was done using gridded Bouguer gravity data covering a 45 {times} 45 km region over the Coso geothermal area in an effort to identify features related to the heat source and to seek possible evidence for an underlying magma chamber. Isostatic and terrain corrected Bouguer gravity data for about 1300 gravity stations were obtained from the US Geological Survey. After the data were checked, the gravity values were gridded at 1 km centers for the area of interest centered on the Coso volcanic field. Most of the gravity variations can be explained by two lithologic units: (1) low density wedges of Quarternary alluvium with interbedded thin basalts (2.4 g/cm{sup 3}) filling the Rose Valley and Coso Basin/Indian Wells Valley, and (2) low density cover of Tertiary volcanic rocks and intercalated Coso Formation (2.49 g/cm{sup 3}). A 3-D iterative approach was used to find the thicknesses of both units. The gravity anomaly remaining after effects from Units 1 and 2 are removed is a broad north-south-trending low whose major peak lies 5 km north of Sugarloaf Mountain, the largest of the less than 0.3 m.y. old rhyolite domes in the Coso Range. Most of this residual anomaly can be accounted for by a deep, low-density (2.47 g/cm{sup 3}) prismatic body extending from 8 to about 30 km below the surface. While some of this anomaly might be associated with fractured Sierran granitic rocks, its close correlation to a low-velocity zone with comparable geometry suggests that the residual anomaly is probably caused a large zone of partial melt underlying the rhyolite domes of the Coso Range. 12 refs., 9 figs.

Feighner, M.A.; Goldstein, N.E.

1990-08-01T23:59:59.000Z

265

Dipole-dipole resistivity survey of a portion of the Coso Hot Springs KGRA, Inyo County, California  

DOE Green Energy (OSTI)

A detailed electrical resistivity survey of 54 line-km was completed at the Coso Hot Springs KGRA in September 1977. This survey has defined a bedrock resistivity low at least 4 sq mi (10 sq km) in extent associated with the geothermal system at Coso. The boundaries of this low are generally well defined to the north and west but not as well to the south where an approximate southern limit has been determined. The bedrock resistivity low merges with an observed resistivity low over gravel fill east of Coso Hot Springs. A complex horizontal and vertical resistivity structure of the surveyed area has been defined which precludes the use of layered-earth or two-dimensional interpretive models for much of the surveyed area. In general the survey data indicate that a 10 to 20 ohm-meter zone extends from near surface to a depth greater than 750 meters within the geothermal system. This zone is bordered to the north and west by bedrock resistivities greater than 200 ohm-meters and to the south by bedrock resistivities greater than 50 ohm-meters. A combination of observed increases in: (1) fracture density (higher permeability), (2) alteration (high clay content), and (3) temperatures (higher dissolved solid content of ground water) within the bedrock low explain its presence.

Fox, R.C.

1978-05-01T23:59:59.000Z

266

Coincident P and Sh reflections from basement rocks at Coso geothermal...  

Open Energy Info (EERE)

the steam field, (2) examining the Tertiary sedimentary basins in Rose Valley and Coso Wash, (3) testing the structural relationship of the Mesozoic Sierran basement to the...

267

Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal...  

Open Energy Info (EERE)

Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems Experiment Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Geology...

268

Static downhole characteristics of well CGEH-1 at Coso Hot Springs...  

Open Energy Info (EERE)

Static downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Static downhole...

269

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

270

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

271

Thermal And-Or Near Infrared At Coso Geothermal Area (1968-1971...  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Thermal And-Or Near Infrared At Coso Geothermal Area (1968-1971) Jump to: navigation, search...

272

Geological and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California  

DOE Green Energy (OSTI)

The Coso Geothermal Exploration Hole number one (CGEH-1) was drilled in the Coso Hot Springs KGRA, California, from September 2 to December 2, 1977. Chip samples were collected at ten foot intervals and extensive geophysical logging surveys were conducted to document the geologic character of the geothermal system as penetrated by CGEH-1. The major rock units encountered include a mafic metamorphic sequence and a leucogranite which intruded the metamorphic rocks. Only weak hydrothermal alteration was noted in these rocks. Drillhole surveys and drilling rate data indicate that the geothermal system is structurally controlled and that the drillhole itself was strongly influenced by structural zones. Water chemistry indicates that this geothermal resource is a hot-water rather than a vapor-dominated system. Several geophysical logs were employed to characcterize the drillhole geology. The natural gamma and neutron porosity logs indicate gross rock type and the accoustic logs indicate fractured rock and potentially permeable zones. A series of temperature logs run as a function of time during and after the completion of drilling were most useful in delineating the zones of maximum heat flux. Convective heat flow and temperatures greater than 350/sup 0/F appear to occur only along an open fracture system encountered between depths of 1850 and 2775 feet. Temperature logs indicate a negative thermal gradient below 3000 feet.

Galbraith, R.M.

1978-05-01T23:59:59.000Z

273

Regulatory, Land Ownership, and Water Availability Factors for a Magma Well: Long Valley Caldera and Coso Hot Springs, California  

DOE Green Energy (OSTI)

The U.S. Department of Energy is currently engaged in a program to demonstrate the engineering feasibility of extracting thermal energy from high-level molten magma bodies. The program is being carried out under the direction of Sandia National Laboratories where a number of individual projects support the overall program. The existing program elements include (1) high-temperature materials compatibility testing; (2) studies of properties of melts of various compositions; and (3) the investigation of the economics of a magma energy extraction system. Another element of the program is being conducted with the cooperation of the U.S. Geological Survey, and involves locating and outlining magma bodies at selected sites using various geophysical techniques. The ultimate goal here will be to define the limits of a magma body as a drilling target. During an earlier phase of the program, more than twenty candidate study sites considered were evaluated based upon: (1) the likelihood of the presence of a shallow magma chamber, (2) the accessibility of the site, and (3) physical and institutional constraints associated with each site with respect to performing long-term experiments. From these early phase activities, the number of candidate sites were eventually narrowed to just 2. The sites currently under consideration are Coso Hot Springs and the Long Valley caldera (Figure 1). This report describes certain attributes of these sites in order to help identify potential problems related to: (1) state and federal regulations pertaining to geothermal development; (2) land ownership; and (3) water resource availability. The information sources used in this study were mainly maps, publications, and informative documents gathered from the California Division of Oil and Gas and the U.S. Department of the Interior. Environmental studies completed for the entire Long Valley caldera study area, and for portions of the Coso Hot Springs study area were also used for reference.

Blackett, Robert

1985-09-01T23:59:59.000Z

274

Seismotectonics of the Coso Range-Indian Wells Valley region, California:  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Seismotectonics of the Coso Range-Indian Wells Valley region, California: Transtensional deformation along the southeastern margin of the Sierra Nevada microplate Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Seismotectonics of the Coso Range-Indian Wells Valley region, California: Transtensional deformation along the southeastern margin of the Sierra Nevada microplate Abstract not available Authors Jeffrey R. Unruh, Egill Hauksson, Francis C. Monastero and Robert J. Twiss and Jonathan C. Lewis Published Journal Geological Society of America, 2002 DOI 10.1130/0-8137-1195-9.277 Online Internet link for Seismotectonics of the Coso Range-Indian Wells Valley region, California: Transtensional deformation along the

275

Variations in dissolved gas compositions of reservoir fluids from the Coso geothermal field  

DOE Green Energy (OSTI)

Gas concentrations and ratios in 110 analyses of geothermal fluids from 47 wells in the Coso geothermal system illustrate the complexity of this two-phase reservoir in its natural state. Two geographically distinct regions of single-phase (liquid) reservoir are present and possess distinctive gas and liquid compositions. Relationships in soluble and insoluble gases preclude derivation of these waters from a common parent by boiling or condensation alone. These two regions may represent two limbs of fluid migration away from an area of two-phase upwelling. During migration, the upwelling fluids mix with chemically evolved waters of moderately dissimilar composition. CO{sub 2} rich fluids found in the limb in the southeastern portion of the Coso field are chemically distinct from liquids in the northern limb of the field. Steam-rich portions of the reservoir also indicate distinctive gas compositions. Steam sampled from wells in the central and southwestern Coso reservoir is unusually enriched in both H{sub 2}S and H{sub 2}. Such a large enrichment in both a soluble and insoluble gas cannot be produced by boiling of any liquid yet observed in single-phase portions of the field. In accord with an upflow-lateral mixing model for the Coso field, at least three end-member thermal fluids having distinct gas and liquid compositions appear to have interacted (through mixing, boiling and steam migration) to produce the observed natural state of the reservoir.

Williams, Alan E.; Copp, John F.

1991-01-01T23:59:59.000Z

276

Low-altitude aeromagnetic survey of a portion of the Coso Hot Springs KGRA, Inyo County, California  

DOE Green Energy (OSTI)

A detailed low-altitude aeromagnetic survey of 576 line-mi (927 line-km) was completed over a portion of the Coso Hot Springs KGRA in September 1977. The survey has defined a pronounced magnetic low that could help delineate the geothermal system. The magnetic low has an areal extent of approximately 10 sq mi (26 sq km). Direct and indirect evidence indicates that this anomaly is due, in part, to magnetite destruction by hydrothermal solutions associated with the geothermal system. The anomaly generally coincides with two other geophysical anomalies which are directly associated with the system: 1) a bedrock electrical resistivity low and 2) an area of relatively high near-surface temperatures. The highest measured heat flow, 18 HFU, also occurs within its boundary. The magnetic low occurs at the intersection of two major structural zones which coincide with a complementary set of strike-slip fault zones determined from seismic activity. The intersection of these two zones of active tectonism probably served as the locus for emplacement of a pluton at depth, above which are observed the coincidental geophysical anomalies and surface manifestations related to the geothermal system.

Fox, R.C.

1978-05-01T23:59:59.000Z

277

Low-altitude aeromagnetic survey of a portion of the Coso Hot Springs KGRA, Inyo County, California  

DOE Green Energy (OSTI)

A detailed low-altitude aeromagnetic survey of 576 line-mi (927 line-km) was completed over a portion of the Coso Hot Springs KGRA in September 1977. The survey has defined a pronounced magnetic low that could help delineate the geothermal system. The magnetic low has an areal extent of approximately 10 sq mi (26 sq km). Direct and indirect evidence indicates that this anomaly is due, in part, to magnetite destruction by hydrothermal solutions associated with the geothermal system. The anomaly generally coincides with two other geophysical anomalies which are directly associated with the system: (1) a bedrock electrical resistivity low; and (2) an area of relatively high near-surface temperatures. The highest measured heat flow, 18 HFU, also occurs within its boundary. The magnetic low occurs at the intersection of two major structural zones which coincide with a complementary set of strike-slip fault zones determined from seismic activity. The intersection of these two zones of active tectonism probably served as the locus for emplacement of a pluton at depth, above which are observed the coincidental geophysical anomalies and surface manifestations related to the geothermal system.

Fox, R.C.

1978-05-01T23:59:59.000Z

278

Project Location  

E-Print Network (OSTI)

USGS quadrangle base-map. 2. Plot Plan with Exploration Data with Building Footprint: 1 boring or exploration shaft per 5000 ft 2, with minimum of 2 for any one building. Exploratory trench locations. 3. Site Coordinates: (Latitude & Longitude) Engineering Geology/Site Characterization 4. Regional Geology and Regional Fault Maps: Concise page-sized illustrations with site plotted. 5. Geologic Map of Site: Detailed (large-scale) geologic map with proper symbols and geologic legend. 6. Subsurface Geology: Engineering geology description summarized from boreholes or trench logs. Summarize ground water conditions. 7. Geologic Cross Sections: Two or more detailed geologic sections with pertinent foundations and site grading. 8. Active Faulting & Coseismic Deformation Across Site: Prepare page-sized extract map of Alquist-Priolo Earthquake Fault Zones and/or any potential fault rupture hazard identified from the Safety Element of the local agency (city or county); show location of fault investigation trenches; 50-foot setbacks perpendicular from fault plane and proposed

Date Reviewed __________________________

2007-01-01T23:59:59.000Z

279

36Cl/Cl ratios in geothermal systems: preliminary measurements from the Coso Field  

DOE Green Energy (OSTI)

The {sub 36}Cl/Cl isotopic composition of chlorine in geothermal systems can be a useful diagnostic tool in characterizing hydrologic structure, in determining the origins and age of waters within the systems, and in differentiating the sources of chlorine (and other solutes) in the thermal waters. The {sub 36}Cl/Cl values for several geothermal water samples and reservoir host rock samples from the Coso, California geothermal field have been measured for these purposes. The results indicate that most of the chlorine is not derived from the dominant granitoid that host the geothermal system. If the chlorine was originally input into the Coso subsurface through meteoric recharge, that input occurred at least 1-1.25 million years ago. The results suggest that the thermal waters could be connate waters derived from sedimentary formations, presumably underlying and adjacent top the granitic rocks, which have recently migrated into the host rocks. Alternatively, most of the chlorine but not the water, may have recently input into the system from magmatic sources. In either case, the results indicate that most of the chlorine in the thermal waters has existed within the granitoid host rocks for no more than about 100,00-200,00 years. this residence time for the chlorine is similar to residence times suggested by other researchers for chlorine in deep groundwaters of the Mono Basin north of the Coso field.

Nimz, G.J.; Moore, J.N.; Kasameyer, P.W.

1997-07-01T23:59:59.000Z

280

Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA  

Science Conference Proceedings (OSTI)

Three wells have been drilled by the Los Angeles Department of Water and Power at the Coso Hot Springs KGRA. A long-term flow test was conducted involving one producing well (well 43-7), one injector (well 88-1), and two observation wells (well 66-6 and California Energy Cos well 71A-7). This paper presents the equipment and techniques involved and the results from the long-term test conducted between December 1985 and February 1986. 1 tab., 9 figs.

Sanyal, S.; Menzies, A.; Granados, E.; Sugine, S.; Gentner, R.

1987-01-20T23:59:59.000Z

Note: This page contains sample records for the topic "details location coso" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


281

Operations plan Coso geothermal exploratory hole No. 1 (CGEH-1)  

DOE Green Energy (OSTI)

An investigative program is described, involving the drilling and testing of an exploratory hole to a nominal depth of 4,000 feet with an option to drill to a depth of 6,000 feet. The following are covered: management and organizational concept; program elements--description, detailed drilling program; materials, services, and equipment provided by ERDA, NWC; site selection; site access and security; health and safety; permits and approvals; reporting; environmental impact; funding; schedule of activities; and public information. The license and reporting forms are included in the appendices. (MHR)

Not Available

1977-06-01T23:59:59.000Z

282

Exploration criteria for low permeability geothermal resources. Final report. [Coso KGRA  

DOE Green Energy (OSTI)

Low permeability geothermal systems related to high temperature plutons in the upper crust were analyzed in order to ascertain those characteristics of these systems which could be detected by surface and shallow subsurface exploration methods. Analyses were designed to integrate data and concepts from the literature, which relate to the transport processes, together with computer simulation of idealized systems. The systems were analyzed by systematically varying input parameters in order to understand their effect on the variables which might be measured in an exploration-assessment program. The methods were applied to a prospective system in its early stages of evaluation. Data from the Coso system were used. The study represents a first-order approximation to transport processes in geothermal systems, which consist of high temperature intrusions, host rock, and fluids. Included in an appendix are operations procedures for interactive graphics programs developed during the study. (MHR)

Norton, D.

1977-10-01T23:59:59.000Z

283

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN  

Open Energy Info (EERE)

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: High precision earthquake locations and subsurface velocity structure provide potential insights into fracture system geometry, fluid conduits and fluid compartmentalization critical to geothermal reservoir management. We analyze 16 years of seismicity to improve hypocentral locations and simultaneously invert for the seismic velocity structure within the Coso Geothermal Field (CGF). The CGF has been continuously

284

Anomalous shear wave attenuation in the shallow crust beneath...  

Open Energy Info (EERE)

the Coso volcanic field, and are coincident with the epicentral locations of recent earthquake swarms. No anomalous attenuation is seen beneath the Coso volcanic field above about...

285

Location and Infrastructure  

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

Facts, Figures Location and Infrastructure Location and Infrastructure LANL's mission is to develop and apply science and technology to ensure the safety, security, and...

286

Sandia National Laboratories: Locations  

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

around the world. Sandia's executive management offices and larger laboratory complex are located in Albuquerque, New Mexico. Our second principal laboratory is located...

287

University Location Project Description  

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

Sustainable Design will create a detailed profile of the Snake River Plain using geologic remote sensing to identify areas of greater thermal potential from a topographic...

288

A Computationally Efficient Approach using Detailed Chemical...  

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

Detailed Chemical Kinetics in Multidimensional Simulation of HCCI and PCCI Engine Combustion Speaker(s): Dan Flowers Date: April 27, 2007 - 12:00pm Location: 90-191 Seminar...

289

ARM - Instrument Location Table  

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

govInstrumentsLocation Table govInstrumentsLocation Table Instruments Location Table Contacts Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument Locations Site abbreviations explained in the key. Instrument Name Abbreviation NSA SGP TWP AMF C1 C2 EF BF CF EF IF C1 C2 C3 EF IF Aerosol Chemical Speciation Monitor ACSM Atmospheric Emitted Radiance Interferometer AERI Aethalometer AETH Ameriflux Measurement Component AMC Aerosol Observing System AOS Meteorological Measurements associated with the Aerosol Observing System AOSMET Broadband Radiometer Station BRS

290

Test Cell Location  

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2012 Fiat 500 Test Cell Location 2WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional Vehicle Dynamometer...

291

Test Cell Location  

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2013 Nissan Altima Test Cell Location 2WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional Vehicle...

292

Test Cell Location  

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Focus Test Cell Location 2WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional Vehicle Dynamometer Input...

293

Test Cell Location  

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Chrysler 300 Test Cell Location 2WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional Vehicle Dynamometer...

294

Test Cell Location  

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

Mazda 3 i-Stop Test Cell Location APRF- 4WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional- Start Stop...

295

1992 CBECS Detailed Tables  

Gasoline and Diesel Fuel Update (EIA)

Detailed Tables Detailed Tables To download all 1992 detailed tables: Download Acrobat Reader for viewing PDF files. Yellow Arrow Buildings Characteristics Tables (PDF format) (70 tables, 230 pages, file size 1.39 MB) Yellow Arrow Energy Consumption and Expenditures Tables (PDF format) (47 tables, 208 pages, file size 1.28 MB) Yellow Arrow Energy End-Use Tables (PDF format) (6 tables, 6 pages, file size 31.7 KB) Detailed tables for other years: Yellow Arrow 1999 CBECS Yellow Arrow 1995 CBECS Background information on detailed tables: Yellow Arrow Description of Detailed Tables and Categories of Data Yellow Arrow Statistical Significance of Data 1992 Commercial Buildings Energy Consumption Survey (CBECS) Detailed Tables Data from the 1992 Commercial Buildings Energy Consumption Survey (CBECS) are presented in three groups of detailed tables:

296

Facility location: distributed approximation  

Science Conference Proceedings (OSTI)

In this paper, we initiate the study of the approximability of the facility location problem in a distributed setting. In particular, we explore a trade-off between the amount of communication and the resulting approximation ratio. We give a distributed ... Keywords: distributed approximation, facility location, linear programming, primal-dual algorithms

Thomas Moscibroda; Rogert Wattenhofer

2005-07-01T23:59:59.000Z

297

Underground Cable Fault Location Reference and Application Guide  

Science Conference Proceedings (OSTI)

This report summarizes underground cable fault location methods and details the application of the methods for transmission and distribution cable systems. It summarizes both terminal location and tracer location methods that can be applied to transmission and distribution cable systems. The report is an update to a summary of fault location methods. It provides practical technical material in the art and science of locating cable faults, including a description of common fault location instruments and p...

2011-12-23T23:59:59.000Z

298

1995 Detailed Tables  

U.S. Energy Information Administration (EIA) Indexed Site

Households, Buildings & Industry > Commercial Buildings Energy Households, Buildings & Industry > Commercial Buildings Energy Consumption Survey > Detailed Tables 1995 Detailed Tables Data from the 1995 Commercial Buildings Energy Consumption Survey (CBECS) are presented in three groups of detailed tables: Buildings Characteristics Tables, number of buildings and amount of floorspace for major building characteristics. Energy Consumption and Expenditures Tables, energy consumption and expenditures for major energy sources. Energy End-Use Data, total, electricity and natural gas consumption and energy intensities for nine specific end-uses. Summary Table—All Principal Buildings Activities (HTML Format) Background information on detailed tables: Description of Detailed Tables and Categories of Data Statistical Significance of Data

299

Reading Room Locations  

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

FOIA Offices and Reading Rooms FOIA Offices and Reading Rooms FOIA Office Locations Our FOIA Officers are located at various sites throughout the DOE complex, each with responsibility for records located at or under the jurisdiction of the site. We recommend that you send your request directly to that specific site. This will shorten the processing time. However, if you do not know which location has responsive records, you may either call the Headquarters FOIA office at (202) 586-5955 to determine the appropriate office, or mail the request to the Headquarters FOIA office. Other records are publicly available in the facilities listed below: Headquarters U.S. Department of Energy FOIA/Privacy Act Group 1000 Independence Avenue, SW Washington, D.C. 20585 Phone: 202-586-5955 Fax: 202-586-0575

300

Entrance Maze Locations  

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

Entrance Maze Locations Entrance Maze Locations for the Storage Ring Tunnel Martin Knott LS-83 2/17/87 The Purpose of this note is to document the locations and decision rationale of the entrance mazes for the APS storage ring. There are a total of seven entrance mazes, four on the infield side and three on the operating floor side of the ring. Three of the infield mazes are associated with infield buildings, one in the Extraction Building and one each in the two RF Buildings. These three were located to provide convenient passage between the technical buildings and the storage ring components associated with those buildings. The Extraction Building maze allows passage between the positron beam transfer area and the storage ring two sectors upstream of the injection

Note: This page contains sample records for the topic "details location coso" 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

Magma Source Location Survey  

DOE Green Energy (OSTI)

A survey of Industry/University geophysicists was conducted to obtain their opinions on the existence of shallow (less than 10 km from surface) magma bodies in the western conterminous United States and methods for locating and defining them. Inputs from 35 individuals were received and are included. Responses were that shallow magma bodies exist and that existing geophysical sensing systems are adequate to locate them.

Hardee, H.C.; Dunn, J.C.; Colp, J.L.

1982-03-01T23:59:59.000Z

302

chapter 5. Detailed Tables  

U.S. Energy Information Administration (EIA) Indexed Site

5. Detailed Tables 5. Detailed Tables Chapter 5. Detailed Tables The following tables present detailed characteristics of vehicles in the residential sector. Data are from the 1994 Residential Transportation Energy Consumption Survey. Table Organization The "Detailed Tables" section consists of three types of tables: (1) Tables of totals such as number of vehicle-miles traveled (VMT) or gallons consumed; (2) tables of per household statistics such as VMT per household; and (3) tables of per-vehicle statistics, such as vehicle fuel consumption per vehicle. The tables have been grouped together by specific topics such as model-year data or family-income data to facilitate finding related information. The Quick-Reference Guide to the detailed tables indicates major topics of each table.

303

Pine Tree Growth Locations  

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

Pine Tree Growth Locations Pine Tree Growth Locations Name: Amielee Location: N/A Country: N/A Date: N/A Question: Why do pine trees not grow south of the equator? Replies: Dear Amielee, The natural distribution of the pines is the northern hemisphere: http://phylogeny.arizona.edu/tree/eukaryotes/green_plants/embryophytes/conif ers/pinaceae/pinus/pinus.html However, pines have become introduced into the southern hemisphere through cultivation: http://www.woodweb.com/~treetalk/Radiata_Pine/wowhome.html Sincerely, Anthony R. Brach, Ph.D. Hi Amielee Some pine trees do live south of the equator but we (I live in Australia) do not have the huge forests of native conifers that you have in the northern hemisphere. Even in the northern hemisphere conifers are only found in two forest types: 1. Tiaga

304

location | OpenEI  

Open Energy Info (EERE)

location location Dataset Summary Description No description given. Source Oak Ridge National Laboratory Date Released November 30th, 2009 (5 years ago) Date Updated Unknown Keywords biodiesel ethanol location production capacity transportation Data application/zip icon Biorefineries.zip (zip, 7 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Other or unspecified, see optional comment below Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote Comments Login or register to post comments If you rate this dataset, your published comment will include your rating.

305

Optimal fault location  

E-Print Network (OSTI)

Basic goal of power system is to continuously provide electrical energy to the users. Like with any other system, failures in power system can occur. In those situations it is critical that correct remedial actions are applied as soon as possible after the accurate fault condition and location are detected. This thesis has been focusing on automated fault location procedure. Different fault location algorithms, classified according to the spatial placement of physical measurements on single ended, multiple ended and sparse system-wide, are investigated. As outcome of this review, methods are listed as function of different parameters that influence their accuracy. This comparison is than used for generating procedure for optimal fault location algorithm selection. According to available data, and position of the fault with respect to the data, proposed procedure decides between different algorithms and selects an optimal one. A new approach is developed by utilizing different data structures such as binary tree and serialization in order to efficiently implement algorithm decision engine. After accuracy of algorithms is strongly influenced by available input data, different data sources are recommended in proposed architecture such as the digital fault recorders, circuit breaker monitoring, SCADA, power system model and etc. Algorithm for determining faulted section is proposed based on the data from circuit breaker monitoring devices. This algorithm works in real time by recognizing to which sequence of events newly obtained recording belongs. Software prototype of the proposed automated fault location analysis is developed using Java programming language. Fault location analysis is automatically triggered by appearance of new event files in a specific folder. The tests were carried out using the real life transmission system as an example.

Knezev, Maja

2007-12-01T23:59:59.000Z

306

University Location Project Description  

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

Location Project Description Location Project Description Boise State University Boise, Idaho Boise State University has undertaken a study of the structural setting and geothermal potential at Neal Hot Springs that will integrate geology, geochemistry, and geophysics to analyze the site on the western Snake River plain. Boise State will determine if Neal Hot Springs sustains the necessary rock dilation and conduit pathways for hydrothermal fluid flow and successful geothermal development. The result will be new data acquisition, including a deep geophysical survey and fault surface data. Colorado School of Mines Golden, Colorado Colorado School of Mines will conduct an investigation near Homedale, Idaho, an area that straddles volcanic rock and unconsolidated sediments.

307

Location-based communication services  

Science Conference Proceedings (OSTI)

Our demo shows end-user-oriented location-based services based on application-layer, human understandable location descriptions. Keywords: internet telephony, location-based services

Xiaotao Wu; Ron Shacham; Matthew J. Mintz-Habib; Kundan Singh; Henning Schulzrinne

2004-10-01T23:59:59.000Z

308

PNNL: Publication Details  

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

we cannot locate that Publication. Please try the Publications Database for other PNNL Publications. Powered By ERICA, PNNL's publication metadatabase Publications Search...

309

Automated Fault Location In Smart Distribution Systems  

E-Print Network (OSTI)

Fault location in distribution systems is a critical component of outage management and service restoration, which directly impacts feeder reliability and quality of the electricity supply. Improving fault location methods supports the Department of Energy (DOE) Grid 2030 initiatives for grid modernization by improving reliability indices of the network. Improving customer average interruption duration index (CAIDI) and system average interruption duration index (SAIDI) are direct advantages of utilizing a suitable fault location method. As distribution systems are gradually evolving into smart distribution systems, application of more accurate fault location methods based on gathered data from various Intelligent Electronic Devices (IEDs) installed along the feeders is quite feasible. How this may be done and what is the needed methodology to come to such solution is raised and then systematically answered. To reach this goal, the following tasks are carried out: 1) Existing fault location methods in distribution systems are surveyed and their strength and caveats are studied. 2) Characteristics of IEDs in distribution systems are studied and their impacts on fault location method selection and implementation are detailed. 3) A systematic approach for selecting optimal fault location method is proposed and implemented to pinpoint the most promising algorithms for a given set of application requirements. 4) An enhanced fault location method based on voltage sag data gathered from IEDs along the feeder is developed. The method solves the problem of multiple fault location estimations and produces more robust results. 5) An optimal IED placement approach for the enhanced fault location method is developed and practical considerations for its implementation are detailed.

Lotfifard, Saeed

2011-08-01T23:59:59.000Z

310

Electric current locator  

DOE Patents (OSTI)

The disclosure herein provides an apparatus for location of a quantity of current vectors in an electrical device, where the current vector has a known direction and a known relative magnitude to an input current supplied to the electrical device. Mathematical constants used in Biot-Savart superposition equations are determined for the electrical device, the orientation of the apparatus, and relative magnitude of the current vector and the input current, and the apparatus utilizes magnetic field sensors oriented to a sensing plane to provide current vector location based on the solution of the Biot-Savart superposition equations. Description of required orientations between the apparatus and the electrical device are disclosed and various methods of determining the mathematical constants are presented.

King, Paul E. (Corvallis, OR); Woodside, Charles Rigel (Corvallis, OR)

2012-02-07T23:59:59.000Z

311

1999 CBECS Detailed Tables  

U.S. Energy Information Administration (EIA) Indexed Site

Commercial Buildings Energy Consumption Survey (CBECS) > Detailed Tables Commercial Buildings Energy Consumption Survey (CBECS) > Detailed Tables 1999 CBECS Detailed Tables Building Characteristics | Consumption & Expenditures Data from the 1999 Commercial Buildings Energy Consumption Survey (CBECS) are presented in the Building Characteristics tables, which include number of buildings and total floorspace for various Building Characteristics, and Consumption and Expenditures tables, which include energy usage figures for major energy sources. A table of Relative Standard Errors (RSEs) is included as a worksheet tab in each Excel tables. Complete sets of RSE tables are also available in .pdf format. (What is an RSE?) Preliminary End-Use Consumption Estimates for 1999 | Description of 1999 Detailed Tables and Categories of Data

312

Clean Cities: Coalition Locations  

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

Locations Locations Clean Cities coalitions are primarily located in major metropolitan areas throughout the United States. Select the dots on the map for information about individual coalitions. See also the list of coalitions by designation date. United States map showing Clean Cities Coalition locations. Philadelphia State of Delaware Capitol Clean Cities of Connecticut Connecticut Southwestern Area New Haven Norwich Red River Valley (Grand Forks, Winnipeg, Manitoba, Canada) Silicon Valley (San Jose) East Bay (Oakland) San Francisco Sacramento Granite State State of Vermont Northeast Ohio Clean Transportation (Cleveland) Detroit Clean Communities of Western New York (Buffalo) Central New York (Syracuse) Capital District (Albany) Empire Clean Cities State of Maryland Washington DC Metropolitan South Shore Western Riverside County Southern California Association of Governments (SCAG) Atlanta Alabama Denver Philadelphia State of Delaware Las Vegas Washington DC Metropolitan Massachusetts Clean Cities Lone Star Clean Fuels Alliance (Austin) Southeast Florida Chicago Land of Enchantment Wisconsin-Southeast Area Southern Colorado Clean Cities Coalition Long Beach Antelope Valley Utah Clean Cities State of Maryland Kentucky Clean Cities Partnership Coalition Rogue Valley State of West Virginia San Joaquin Valley San Francisco Columbia-Willamette St. Louis Central New York (Syracuse) Dallas/Ft. Worth Honolulu Central Arkansas Pittsburgh Southern California Association of Governments (SCAG) Los Angeles Coachella Valley Region Northern Colorado Central Oklahoma (Oklahoma City) Virginia Clean Cities Coalition San Diego Regional Clean Cities Coalition Greater Long Island Maine Clean Communities Tulsa Valley of the Sun (Phoenix) Western Riverside County New Jersey Genesee Region (Rochester) Western Washington Clean Cities (Seattle) Ocean State Connecticut Connecticut2 Kansas City Regional Coalition Greater Indiana Clean Cities Coalition Capital District (Albany) Tucson Central Florida Clean Cities Coalition Alamo Area (San Antonio) Greater Baton Rouge Clean Cities Coalition Triangle (Raleigh, Durham, Chapel Hill) Twin Cities Clean Fuels Ohio Yellowstone-Teton Clean Energy Coalition Greater Lansing Palmetto State Houston-Galveston Middle Tennessee East Tennessee Clean Fuels Coalition Centralina Clean Fuels Coalition State of Iowa Treasure Valley Central Coast Southeast Louisiana Clean Fuels Partnership Land of Sky Coalition

313

Clean Cities: Coalition Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Locations Locations Clean Cities coalitions are primarily located in major metropolitan areas throughout the United States. Select the dots on the map for information about individual coalitions. See also the list of coalitions by designation date. United States map showing Clean Cities Coalition locations. Philadelphia State of Delaware Capitol Clean Cities of Connecticut Connecticut Southwestern Area New Haven Norwich Red River Valley (Grand Forks, Winnipeg, Manitoba, Canada) Silicon Valley (San Jose) East Bay (Oakland) San Francisco Sacramento Granite State State of Vermont Northeast Ohio Clean Transportation (Cleveland) Detroit Clean Communities of Western New York (Buffalo) Central New York (Syracuse) Capital District (Albany) Empire Clean Cities State of Maryland Washington DC Metropolitan South Shore Western Riverside County Southern California Association of Governments (SCAG) Atlanta Alabama Denver Philadelphia State of Delaware Las Vegas Washington DC Metropolitan Massachusetts Clean Cities Lone Star Clean Fuels Alliance (Austin) Southeast Florida Chicago Land of Enchantment Wisconsin-Southeast Area Southern Colorado Clean Cities Coalition Long Beach Antelope Valley Utah Clean Cities State of Maryland Kentucky Clean Cities Partnership Coalition Rogue Valley State of West Virginia San Joaquin Valley San Francisco Columbia-Willamette St. Louis Central New York (Syracuse) Dallas/Ft. Worth Honolulu Central Arkansas Pittsburgh Southern California Association of Governments (SCAG) Los Angeles Coachella Valley Region Northern Colorado Central Oklahoma (Oklahoma City) Virginia Clean Cities Coalition San Diego Regional Clean Cities Coalition Greater Long Island Maine Clean Communities Tulsa Valley of the Sun (Phoenix) Western Riverside County New Jersey Genesee Region (Rochester) Western Washington Clean Cities (Seattle) Ocean State Connecticut Connecticut2 Kansas City Regional Coalition Greater Indiana Clean Cities Coalition Capital District (Albany) Tucson Central Florida Clean Cities Coalition Alamo Area (San Antonio) Greater Baton Rouge Clean Cities Coalition Triangle (Raleigh, Durham, Chapel Hill) Twin Cities Clean Fuels Ohio Yellowstone-Teton Clean Energy Coalition Greater Lansing Palmetto State Houston-Galveston Middle Tennessee East Tennessee Clean Fuels Coalition Centralina Clean Fuels Coalition State of Iowa Treasure Valley Central Coast Southeast Louisiana Clean Fuels Partnership Land of Sky Coalition

314

Clean Cities: NewsDetail  

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

Tweet about Clean Cities: NewsDetail on Twitter Bookmark Clean Cities: NewsDetail on Google Bookmark Clean Cities: NewsDetail on Delicious Rank Clean Cities: NewsDetail on Digg...

315

METHOD OF LOCATING GROUNDS  

DOE Patents (OSTI)

ABS>This patent presents a method for locating a ground in a d-c circult having a number of parallel branches connected across a d-c source or generator. The complete method comprises the steps of locating the ground with reference to the mildpoint of the parallel branches by connecting a potentiometer across the terminals of the circuit and connecting the slider of the potentiometer to ground through a current indicating instrument, adjusting the slider to right or left of the mildpoint so as to cause the instrument to indicate zero, connecting the terminal of the network which is farthest from the ground as thus indicated by the potentiometer to ground through a condenser, impressing a ripple voltage on the circuit, and then measuring the ripple voltage at the midpoint of each parallel branch to find the branch in which is the lowest value of ripple voltage, and then measuring the distribution of the ripple voltage along this branch to determine the point at which the ripple voltage drops off to zero or substantially zero due to the existence of a ground. The invention has particular application where a circuit ground is present which will disappear if the normal circuit voltage is removed.

Macleish, K.G.

1958-02-11T23:59:59.000Z

316

Detailed Test Information  

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

Detailed Test Information Detailed Test Information EPA tests vehicles by running them through a series of driving routines, also called cycles or schedules, that specify vehicle speed for each point in time during the laboratory tests. For 2007 and earlier model year vehicles, only the city and highway schedules were used. Beginning with 2008 models, three additional tests will be used to adjust the city and highway estimates to account for higher speeds, air conditioning use, and colder temperatures. Note: EPA has established testing criteria for electric vehicles and plug-in hybrids that are slightly different than those for conventional vehicles. New Tests City Highway High Speed Air Conditioning Cold Temperature Detailed Comparison EPA Federal Test Procedure (City Schedule): Shows vehicle speed (mph) at each second of test

317

Test Cell Location  

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

Mazda 3 i-Stop Mazda 3 i-Stop Test Cell Location APRF- 4WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional- Start Stop Vehicle Dynamometer Input Document Date 11/20/2012 Advanced Powertrain Research Facility Test weight [lb] 3250 Vehicle Dynamometer Input Document Date 11/20/2012 Revision Number 1 Advanced Powertrain Research Facility Test weight [lb] Target A [lb] 3250 31.2 Target B [lb/mph] Target C [lb/mph^2] 0.462 0.014 Test Fuel Information - Vehicle equipped with with i-Stop package - Manual Transmission - All tests completed in ECO mode - EPA shift schedule modified based on vehicle shift light activity Revision Number 1 Notes: Fuel type EPA Tier II EEE Gasoline Test Fuel Information - Vehicle equipped with with i-Stop package

318

Test Cell Location  

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

Chrysler 300 Chrysler 300 Test Cell Location 2WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional Vehicle Dynamometer Input Document Date 8/7/2013 Advanced Powertrain Research Facility Test weight [lb] Target A [lb] 4250 38.61 Target B [lb/mph] Target C [lb/mph^2] 0.8894 0.01105 3.6L VVT Port-injected V-6 8 speed Transmission Revision Number 3 Notes: Test Fuel Information 3.6L VVT Port-injected V-6 8 speed Transmission Fuel type Tier II EEE HF437 3.6L VVT Port-injected V-6 8 speed Transmission Fuel density [g/ml] Fuel Net HV [BTU/lbm] 0.743 18490 T e s t I D [ # ] C y c l e C o l d s t a r t ( C S t ) H o t s t a r t [ H S t ] D a t e T e s t C e l l T e m p [ C ] T e s t C e l l R H [ % ] T e s t C e l l B a r o [ i n / H g ] V e h i c l e c o o l i n g f a n s p e e d : S p e e d M a t c h [ S M ] o r c o n s t a n t s p e e d [ C S ] S

319

Detailed Course Module Description  

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

Course Module Description Course Module Description Module/Learning Objectives Level of Detail in Module by Audience Consumers Gen Ed/ Community College Trades 1. Energy Issues and Building Solutions High High High Learning Objectives: * Define terms of building science, ecological systems, economics of consumption * Relate building science perspective, ecology, social science * Explain historical energy and environmental issues related to buildings * Compare Site and source energy * Examine the health, safety and comfort issues in buildings * Examine the general context for building solutions (zero energy green home with durability as the goal) * Explain a basic overview of alternative energy (total solar flux) - do we have enough energy * Examine cash flow to homeowners

320

Measuring long-term location privacy in vehicular communication systems  

Science Conference Proceedings (OSTI)

Vehicular communication systems are an emerging form of communication that enables new ways of cooperation among vehicles, traffic operators, and service providers. However, many vehicular applications rely on continuous and detailed location information ... Keywords: Accumulated information, Entropy, Location privacy, Metric, Vehicular communication systems

Zhendong Ma; Frank Kargl; Michael Weber

2010-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "details location coso" 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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321

2001 Housing Characteristics Detailed Tables  

U.S. Energy Information Administration (EIA)

2001 Residential Energy Consumption Survey-Housing Characteristics, 2001 Detailed Tables, Energy Information Administration

322

Aerosols in a Changing Atmosphere: From Detailed Aerosol Microphysics...  

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

Aerosols in a Changing Atmosphere: From Detailed Aerosol Microphysics to Policy Applications Speaker(s): Susanne Bauer Date: December 6, 2011 - 4:00pm Location: 90-4133 Seminar...

323

Mobile Alternative Fueling Station Locator  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Alternative Fueling Station Locator Alternative Fueling Station Locator Fuel Type Biodiesel (B20 and above) Compressed Natural Gas Electric Ethanol (E85) Hydrogen Liquefied Natural Gas (LNG) Liquefied Petroleum Gas (Propane) Location Enter a city, postal code, or address Include private stations Not all stations are open to the public. Choose this option to also search private fueling stations. Search Caution: The AFDC recommends that users verify that stations are open, available to the public, and have the fuel prior to making a trip to that location. Some stations in our database have addresses that could not be located by the Station Locator application. This may result in the station appearing in the center of the zip code area instead of the actual location. If you're having difficulty, please contact the technical response team at

324

Clean Cities: Clean Cities Financial Opps Details NewsDetail  

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

Financial Opportunities Printable Version Share this resource Send a link to Clean Cities: Clean Cities Financial Opps Details NewsDetail to someone by E-mail Share Clean Cities:...

325

I/O Benchmarking Details  

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

IO Benchmarking Details IO Benchmarking Details These benchmarks are simply the transfer rate for copying some files from an eliza file system to TMPDIR on a batch node. Each...

326

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

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

Page 1 of 6 VEHICLE DETAILS AND BATTERY SPECIFICATIONS 1 Vehicle Details Base Vehicle: 2013 Chevrolet Volt VIN: 1G1RA6E40DU103929 Propulsion System: Multi-Mode PHEV (EV, Series,...

327

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

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

Page 1 VEHICLE DETAILS AND BATTERY SPECIFICATIONS 1 Vehicle Details Base Vehicle: 2011 Chevrolet Volt VIN: 1G1RD6E48BU100815 Propulsion System: Multi-Mode PHEV (EV, Series, and...

328

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Frequency Comb, Ultrafast Laser. ...

329

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Iron-Based Superconductors. Description ...

330

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Space Weather Forecasts. Description ...

331

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Organic Solar Power. Description ...

332

Mobile Alternative Fueling Station Locator  

Science Conference Proceedings (OSTI)

The Department of Energy's Alternative Fueling Station Locator is available on-the-go via cell phones, BlackBerrys, or other personal handheld devices. The mobile locator allows users to find the five closest biodiesel, electricity, E85, hydrogen, natural gas, and propane fueling sites using Google technology.

Not Available

2009-04-01T23:59:59.000Z

333

Precision zero-home locator  

DOE Patents (OSTI)

A zero-home locator includes a fixed phototransistor switch and a moveable actuator including two symmetrical, opposed wedges, each wedge defining a point at which switching occurs. The zero-home location is the average of the positions of the points defined by the wedges.

Stone, William J. (Kansas City, MO)

1986-01-01T23:59:59.000Z

334

Precision zero-home locator  

DOE Patents (OSTI)

A zero-home locator includes a fixed phototransistor switch and a moveable actuator including two symmetrical, opposed wedges, each wedge defining a point at which switching occurs. The zero-home location is the average of the positions of the points defined by the wedges.

Stone, W.J.

1983-10-31T23:59:59.000Z

335

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image No 150 DPI Version 300 DPI Image. Title: Ultrafast Laser Speeds Up Quest for Atomic Control. ...

336

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: House; Trees. Description: *BFRL. Subjects (names): ...

337

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. No 72 DPI Version No 150 DPI Version 300 DPI Image. Title: Gold Nano Anchors Put Nanowires in Their Place. ...

338

TEMPORAL VARIATIONS OF FRACTURE DIRECTIONS AND FRACTURE DENSITIES IN THE  

Open Energy Info (EERE)

TEMPORAL VARIATIONS OF FRACTURE DIRECTIONS AND FRACTURE DENSITIES IN THE TEMPORAL VARIATIONS OF FRACTURE DIRECTIONS AND FRACTURE DENSITIES IN THE COSO GEOTHERMAL FIELD FROM ANALYSES OF SHEAR-WAVE SPLITTING Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: TEMPORAL VARIATIONS OF FRACTURE DIRECTIONS AND FRACTURE DENSITIES IN THE COSO GEOTHERMAL FIELD FROM ANALYSES OF SHEAR-WAVE SPLITTING Details Activities (1) Areas (1) Regions (0) Abstract: This project aims to improve understanding of the subsurface fracture system in the Coso geothermal field, located in the east central California. We applied shear-wave splitting technique on a set of high quality, locally recorded microearthquake (MEQ) data. Four major fracture directions have been identified from the seismograms recorded by the permanent sixteen-station down-hole array: N10- 20W, NS, N20E, and N40-45E,

339

Major DOE Biofuels Project Locations  

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

Biofuels Project Locations Biofuels Project Locations BlueFire Ethanol Biochemical Municipal Solid Waste (Mecca, CA) Poet Biochemical Corn Cob/Corn Fiber (Emmetsburg, IA) Lignol Biochemical Woody Biomass- Ag Residues (Grand Junction, CO) ICM Biochemical Switchgrass, Forage Sorghum, Stover (St. Joseph, MO) Abengoa Biochemica Agricultural Residue (Hugoton, KS) DOE Joint Bioenergy Institute (Berkeley, CA) DOE Great Lakes Bioenergy Research Center (Madison, WI) DOE Bioenergy Science Center (Oak Ridge, TN) NewPage Thermochemical Woody Biomass - Mill Residues (Wisconsin Rapids, WI) Range Fuels Thermochemical Woody Waste (Soperton, GA) DSM Innovation Center Biochemical Various (Parsippany, NJ) Novozymes Biochemical Various (Davis, CA) Genencor Biochemical Various (Palo Alto, CA) Verenium Corp Biochemical Various (San Diego, CA)

340

Information about DOE Locations | Department of Energy  

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

Information about DOE Locations Information about DOE Locations The following chart provides information about the FOIA program at each of the locations. You can link to the...

Note: This page contains sample records for the topic "details location coso" 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

Energy Storage Demonstration Project Locations | Department of...  

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

Demonstration Project Locations Energy Storage Demonstration Project Locations Map of the United States showing the location of Energy Storage Demonstration projects created with...

342

Energy Storage Demonstration Project Locations | Department of...  

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

Energy Storage Demonstration Project Locations Energy Storage Demonstration Project Locations Map of the United States showing the location of Energy Storage Demonstration projects...

343

Acoustic emission monitoring for assessment of steel bridge details  

SciTech Connect

Acoustic emission (AE) testing was deployed on details of two large steel Interstate Highway bridges: one cantilever through-truss and one trapezoidal box girder bridge. Quantitative measurements of activity levels at known and suspected crack locations were made by monitoring AE under normal service loads (e.g., live traffic and wind). AE indications were used to direct application of radiography, resulting in identification of a previously unknown flaw, and to inform selection of a retrofit detail.

Kosnik, D. E.; Corr, D. J. [Infrastructure Technology Institute, Northwestern University, Evanston, IL 60208 (United States); Hopwood, T. [Kentucky Transportation Center, University of Kentucky, Lexington, KY 40506 (United States)

2011-06-23T23:59:59.000Z

344

2003 CBECS Detailed Tables: Summary  

U.S. Energy Information Administration (EIA) Indexed Site

2003 Detailed Tables 2003 Detailed Tables 2003 CBECS Detailed Tables most recent available Released: September 2008 Building Characteristics | Consumption & Expenditures | End-Use Consumption In the 2003 CBECS, the survey procedures for strip shopping centers and enclosed malls ("mall buildings") were changed from those used in previous surveys, and, as a result, mall buildings are now excluded from most of the 2003 CBECS tables. Therefore, some data in the majority of the tables are not directly comparable with previous CBECS tables, all of which included mall buildings. Some numbers in the 2003 tables will be slightly lower than earlier surveys since the 2003 figures do not include mall buildings. See "Change in Data Collection Procedures for Malls" for a more detailed explanation.

345

Research experiments detailed design review  

DOE Green Energy (OSTI)

The illustrations for the detailed design review of the heliostats for a solar thermal pilot plant are presented. Also included are the program schedule, meeting agenda, and component design features. (MHR)

Not Available

1976-01-01T23:59:59.000Z

346

Details of U.S. Climate Zones:  

U.S. Energy Information Administration (EIA) Indexed Site

Details of U.S. Climate Zones Details of U.S. Climate Zones Details of U.S. Climate Zones: The CBECS climate zones are groups of climate divisions, as defined by the National Oceanic and Atmospheric Administration (NOAA), which are regions within a state that are as climatically homogeneous as possible. Each NOAA climate division is placed into one of five CBECS climate zones based on its 30-year average heating degree-days (HDD) and cooling degree-days (CDD) for the period 1971 through 2000. (These climate zones have been updated for the 2003 CBECS. All previous CBECS used averages for the 45-year period from 1931 through 1975.) A HDD is a measure of how cold a location was over a period of time, relative to a base temperature (in CBECS, 65 degrees Fahrenheit). The heating degree-day is the difference between that day's average temperature and 65 degrees if the daily average is less than 65; it is zero if the daily average temperature is greater than or equal to 65. For example, if the average temperature for a given day is 40 degrees, then the heating degree-days for that single day equal 25. Heating degree-days for a year are the sum of the daily heating degree-days that year.

347

Advanced Manufacturing Office: NewsDetail  

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

Office: NewsDetail on Twitter Bookmark Advanced Manufacturing Office: NewsDetail on Google Bookmark Advanced Manufacturing Office: NewsDetail on Delicious Rank Advanced...

348

Building Technologies Office: Buildings NewsDetail  

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

NewsDetail on Twitter Bookmark Building Technologies Office: Buildings NewsDetail on Google Bookmark Building Technologies Office: Buildings NewsDetail on Delicious Rank Building...

349

Building Technologies Office: NewsDetail  

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

Office: NewsDetail on Twitter Bookmark Building Technologies Office: NewsDetail on Google Bookmark Building Technologies Office: NewsDetail on Delicious Rank Building...

350

EERE Postdoctoral Research Awards: NewsDetail  

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

NewsDetail on Twitter Bookmark EERE Postdoctoral Research Awards: NewsDetail on Google Bookmark EERE Postdoctoral Research Awards: NewsDetail on Delicious Rank EERE...

351

station locations | OpenEI  

Open Energy Info (EERE)

00 00 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142288500 Varnish cache server station locations Dataset Summary Description Alternative fueling stations are located throughout the United States and their availability continues to grow. The Alternative Fuels Data Center (AFDC) maintains a website where you can find alternative fuels stations near you or on a route, obtain counts of alternative fuels stations by state, Source Alternative Fuels Data Center Date Released December 13th, 2010 (4 years ago) Date Updated December 13th, 2010 (4 years ago) Keywords alt fuel alternative fuels alternative fuels stations biodiesel CNG compressed natural gas E85 Electricity ethanol

352

Level-of-Detail Shaders  

E-Print Network (OSTI)

Current graphics hardware can render objects using simple procedural shaders in real-time. However, detailed, highquality shaders will continue to stress the resources of hardware for some time to come. Shaders written for film production and software renderers may stretch to thousands of lines. The difficulty of rendering efficiently is compounded when there is not just one, but a scene full of shaded objects, surpassing the capability of any hardware to render. This problem has many similarities to the rendering of large models, a problem that has inspired extensive research in geometric level-of-detail and geometric simplification. We introduce an analogous process for shading, shader simplification. Starting from an initial detailed shader, shader simplification produces a new shader with extra level-of-detail parameters that control the shader execution. The resulting level-of-detail shader, can automatically adjust its rendered appearance based on measures of distance, size, or importance as well as physical limits such as rendering time budget or texture usage.

Marc Olano; Bob Kuehne

2003-01-01T23:59:59.000Z

353

Vacuum State/Refiner/Location  

U.S. Energy Information Administration (EIA) Indexed Site

Vacuum Vacuum State/Refiner/Location Barrels per Atmospheric Crude Oil Distillation Capacity Barrels per Operating Idle Operating Idle Downstream Charge Capacity Thermal Cracking Delayed Fluid Coking Visbreaking Other/Gas Calendar Day Stream Day Distillation Coking Oil Table 3. Capacity of Operable Petroleum Refineries by State as of January 1, 2013 (Barrels per Stream Day, Except Where Noted) ......................................................... Alabama 120,100 0 130,000 0 48,000 32,000 0 0 0 Goodway Refining LLC 4,100 0 5,000 0 0 0 0 0 0 ....................................................................................................................................................................................................

354

Major DOE Biofuels Project Locations  

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

Biofuels Biofuels Project Locations Pacific Ethanol (Boardman, OR) BlueFire Ethanol (Corona, CA) POET (Emmetsburg, IA) Lignol Innovations (Commerce City, CO) ICM (St. Joseph, MO) Abengoa (Hugoton, KS) DOE Joint Bioenergy Institute (Berkeley, CA) DOE Great Lakes Bioenergy Research Center (Madison, WI) DOE Bioenergy Science Center (Oak Ridge, TN) NewPage (Wisconsin Rapids, WI) Range Fuels (Soperton, GA) DSM Innovation Center (Parsippany, NJ) Novozymes (Davis, CA) Genencor (Palo Alto, CA) Verenium Corp (San Diego, CA) Dupont (Wilmington, DE) Mascoma (Lebanon, NH) Cargill Inc (Minneapolis, MN) Regional Partnerships South Dakota State University, Brookings, SD Cornell University, Ithaca, NY University of Tennessee, Knoxville, TN Oklahoma State University, Stillwater, OK Oregon State University, Corvallis, OR

355

The LHCb Vertex Locator performance and Vertex Locator upgrade  

E-Print Network (OSTI)

LHCb is an experiment dedicated to the study of new physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The Vertex Locator (VELO) is the silicon detector surrounding the LHCb interaction point. The detector operates in a severe and highly non-uniform radiation environment. The small pitch and analogue readout result in a best single hit precision of 4 $\\rm \\mu$m. The upgrade of the LHCb experiment, planned for 2018, will transform the entire readout to a trigger-less system operating at 40 MHz event rate. The vertex detector will have to cope with radiation levels up to 10$^{16}$ 1 MeV$\\rm n_{eq}/cm^2$, more than an order of magnitude higher than those expected at the current experiment. A solution is under development with a pixel detector, based on the Timepix/Medipix family of chips with 55 x 55 $\\rm \\mu m$ pixels. In addition a micro-strip solution is also under development, with finer pitch, higher granularity and lower mass than the current detector. The current status of the VELO will be described together with recent testbeam results.

Pablo Rodrguez Prez; for the LHCb VELO Group; for the VELO Upgrade group

2012-09-21T23:59:59.000Z

356

New Details of Ferroelectric Switching  

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

New Details of Ferroelectric Switching New Details of Ferroelectric Switching All of our current information technology relies on devices that process information as binary ones and zeroes. Ferroelectric materials are of special interest to developers of the next generation of such devices because they exhibit polarized electronic states that can represent bits of information. Moreover, these materials retain their polarization states without consuming electrical power, making ferroelectrics the subject of intense study for nonvolatile memory applications in which data is stored even when the power is turned off. One problem, however, is polarization fatigue: after a number of cycles, the switchable polarization begins to taper off, rendering the device unusable. Recently, a team of researchers

357

Electric Power detailed State data  

U.S. Energy Information Administration (EIA) Indexed Site

Detailed State Data Detailed State Data Annual data for 2012 Release Date: November 12, 2013 Next Release Date: November 2014 Revision/Corrections Annual data format 1990 - 2012 Net Generation by State by Type of Producer by Energy Source (EIA-906, EIA-920, and EIA-923)1 XLS 1990 - 2012 Fossil Fuel Consumption for Electricity Generation by Year, Industry Type and State (EIA-906, EIA-920, and EIA-923)2 XLS 1990 - 2011 Existing Nameplate and Net Summer Capacity by Energy Source, Producer Type and State (EIA-860)1, 3 XLS 2011 - 2016 Proposed Nameplate and Net Summer Capacity by Year, Energy Source, and State (EIA-860)1 XLS 1990 - 2011 U.S. Electric Power Industry Estimated Emissions by State (EIA-767, EIA-906, EIA-920, and EIA-923)4 XLS 1990 - 2012 Average Price by State by Provider (EIA-861)5 XLS

358

SAPLE: Sandia Advanced Personnel Locator Engine.  

SciTech Connect

We present the Sandia Advanced Personnel Locator Engine (SAPLE) web application, a directory search application for use by Sandia National Laboratories personnel. SAPLE's purpose is to return Sandia personnel 'results' as a function of user search queries, with its mission to make it easier and faster to find people at Sandia. To accomplish this, SAPLE breaks from more traditional directory application approaches by aiming to return the correct set of results while placing minimal constraints on the user's query. Two key features form the core of SAPLE: advanced search query interpretation and inexact string matching. SAPLE's query interpretation permits the user to perform compound queries when typing into a single search field; where able, SAPLE infers the type of field that the user intends to search on based on the value of the search term. SAPLE's inexact string matching feature yields a high-quality ranking of personnel search results even when there are no exact matches to the user's query. This paper explores these two key features, describing in detail the architecture and operation of SAPLE. Finally, an extensive analysis on logged search query data taken from an 11-week sample period is presented.

Procopio, Michael J.

2010-04-01T23:59:59.000Z

359

SunShot Initiative: NewsDetail  

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

SunShot Initiative: NewsDetail on Twitter Bookmark SunShot Initiative: NewsDetail on Google Bookmark SunShot Initiative: NewsDetail on Delicious Rank SunShot Initiative:...

360

Solid-State Lighting: NewsDetail  

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

Lighting: NewsDetail on Twitter Bookmark Solid-State Lighting: NewsDetail on Google Bookmark Solid-State Lighting: NewsDetail on Delicious Rank Solid-State Lighting:...

Note: This page contains sample records for the topic "details location coso" 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

Fuel Cell Technologies Office: NewsDetail  

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

Office: NewsDetail on Twitter Bookmark Fuel Cell Technologies Office: NewsDetail on Google Bookmark Fuel Cell Technologies Office: NewsDetail on Delicious Rank Fuel Cell...

362

Show details for [Energy Storage III: Materials ...  

Science Conference Proceedings (OSTI)

Show details for [ACerS ACerS Arthur L. Friedberg Memorial Lecture. Show details for [ACerS ACerS Cooper Award...

363

BISICLES Captures Details of Retreating Antarctic Ice  

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

BISICLES Captures Details of Retreating Antarctic Ice BISICLES Captures Details of Retreating Antarctic Ice March 30, 2013 | Tags: Climate Research, Hopper, Math & Computer Science...

364

Detecting, Locating, and Characterizing Remote Power Sources  

SciTech Connect

A feasibility study to determine range and back-azimuth detection methods for an isolated generator powering common loads was completed. The study deployed 3-component E and B field sensors with sampling rates of 100 kHz in a low noise test location in Southern California. Scripted power and load cycling was recorded at ranges of 40 meters to 4 km from the generator/load source. Three loads were tested: a 100 meter string of lights, an inverter powering an air blower, and a resistive heater. No E-field or B-field radiated signals were detected at ranges greater than 40 meters with a signal-to-noise ratio greater than one. Large variations in the broadband background electromagnetic noise were observed and may have been responsible for null detections at some measurement locations. At the 40-meter station, a frequency shift upon generator loading was observed for all load types. Harmonics from the detuned generator (operating at 56.7 Hz) could be observed for all load types but were most pronounced for the inverter source. A back-azimuth estimation methodology was applied to detected harmonics with stable and consistent results. For the inverter source, consistent back azimuths to the source were determined for the fundamental and higher detected harmonics up to the 31st. The method was applied to narrow band ''noise'' at 60 Hz and produced bimodal directions that roughly pointed to large population centers. Details of the method are withheld in this report pending a record of invention submittal. Although the generator/load combinations, which utilized wiring that tended to minimize stray signals, cannot yet be detected at large stand-off range without application of noise-filtering methods, the back-azimuth method appears promising and should be applied to other source types and frequency ranges where an E and B field can be detected. A record of invention describing this new back-azimuth method has been submitted to the Intellectual Property Law Group.

Harben, P; Carrigan, C; Kirkendall, B; Simons, D

2005-02-10T23:59:59.000Z

365

Metal Detectives: New Book Details Titanic Investigation  

Science Conference Proceedings (OSTI)

Metal Detectives: New Book Details Titanic Investigation. For Immediate Release: April 15, 2008. ...

2012-10-02T23:59:59.000Z

366

A study of effectiveness of dynamic slicing in locating real faults  

Science Conference Proceedings (OSTI)

Dynamic slicing algorithms have been considered to aid in debugging for many years. However, as far as we know, no detailed studies on evaluating the benefits of using dynamic slicing for locating real faults present in programs have been carried out. ... Keywords: Data slicing, Dynamic program slicing, Exploring slices, Fault location, Full slicing

Xiangyu Zhang; Neelam Gupta; Rajiv Gupta

2007-04-01T23:59:59.000Z

367

Maps & Directions | Custom Map Location | Brookhaven National...  

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

Want to share a specific location with others? Drag the marker pin to a new location and then share the following URL: http:www.bnl.govmapspoint.php?Lat40.86827&Lng-72.88113...

368

Mobile Truck Stop Electrification Site Locator  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Truck Stop Electrification Site Locator Location Enter a city, postal code, or address Search Caution: The AFDC recommends that users verify that sites are open prior to making a...

369

Factors of characteristic words: Location and decompositions  

Science Conference Proceedings (OSTI)

Let @a be an irrational number with 0Keywords: Characteristic word, Decomposition, Location, Overlap factor, Return words, Separate factor

Wai-Fong Chuan; Hui-Ling Ho

2010-06-01T23:59:59.000Z

370

Optimal Location of Vertical Wells: Decomposition Approach  

E-Print Network (OSTI)

Optimal Location of Vertical Wells: Decomposition Approach M. G. Ierapetritou and C. A. Floudas®elopment plan with well locations, gi®en a reser®oir property map and a set of infrastructure constraints, represents a ®ery challenging prob- lem. The problem of selecting the optimal ®ertical well locations

371

Location tracking via social networking sites  

Science Conference Proceedings (OSTI)

The use of social media has steadily grown in recent years, and now more than ever, people are logging on to websites like Facebook, Twitter, Foursquare, and Google Latitude with the aim of broadcasting their location information. The ability to 'check ... Keywords: disclosure, intention, location-based services, location-tracking, social networking, trust

Lisa Thomas; Pam Briggs; Linda Little

2013-05-01T23:59:59.000Z

372

Location, Decentralization, and Knowledge Sources for Innovation  

Science Conference Proceedings (OSTI)

When firms seek to innovate, they must decide where to locate their innovation activity. This location choice requires firms to make a simultaneous choice about the organizational structure of innovation activity: almost by definition, multiple locations ... Keywords: decentralization, imitative innovation, new-to-the-market innovation, research and development

Aija Leiponen; Constance E. Helfat

2011-05-01T23:59:59.000Z

373

Open neighborhood locating-dominating in trees  

Science Conference Proceedings (OSTI)

For a graph G that models a facility or a multiprocessor network, detection devices can be placed at the vertices so as to identify the location of an intruder such as a thief or saboteur or a faulty processor. Open neighborhood locating-dominating sets ... Keywords: Domination, Open neighborhood locating-dominating set

Suk J. Seo; Peter J. Slater

2011-03-01T23:59:59.000Z

374

NETL: Gasifipedia - Gasification in Detail  

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

Commercial Gasifiers Commercial Gasifiers Types of Gasifiers Although there are various types of gasifers (gasification reactors), different in design and operational characteristics, there are three main gasifier classifications into which most of the commercially available gasifiers fall. These categories are as follows: Fixed-bed gasifiers (also referred as moving-bed gasifiers) Entrained-flow gasifiers Fluidized-bed gasifiers Commercial gasifiers of GE Energy, ConocoPhillips E-Gas(tm) and Shell SCGP are examples of entrained-flow types. Fixed-or moving-bed gasifiers include that of Lurgi and British Gas Lurgi (BGL). Fluidized-bed gasifiers include the catalytic gasifier technology being commercialized by Great Point Energy, the Winkler gasifier, and the KBR transport gasifiers. For more specific information on these gasifiers, follow the links for the bulleted gasifier types above. NOTE: Although specific gasifiers named above are described in detail throughout this website, it is realized that other gasification technologies exist. The gasifiers discussed herein were not preferentially chosen by NETL.

375

Alternative Fueling Station Locator | Open Energy Information  

Open Energy Info (EERE)

Alternative Fueling Station Locator Alternative Fueling Station Locator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Alternative Fueling Station Locator Agency/Company /Organization: United States Department of Energy Partner: National Renewable Energy Laboratory Sector: Energy Focus Area: Fuels & Efficiency, Transportation Phase: Evaluate Options, Prepare a Plan Topics: Datasets Resource Type: Online calculator User Interface: Website Website: www.afdc.energy.gov/afdc/locator/stations/ Web Application Link: www.afdc.energy.gov/afdc/locator/stations/ Cost: Free OpenEI Keyword(s): Featured References: National Renewable Energy Laboratory Advanced Vehicles and Fuels Research: Data and Resources[1] Logo: Alternative Fueling Station Locator The alternative fuel station locator uses an address based search to find

376

Locational analysis for the aluminum industry  

SciTech Connect

A locational analysis for the aluminum industry suggests that its locational pattern is probably even more clear-cut than that of the steel industry. Because the smelting of alumina into aluminum requires a very large amount of electric power, aluminum has become an industry highly oriented to cheap-power locations. A quick analysis, taking into account present technological and economic conditions, reveals that the potential advantages of the minimum-transport-cost location for an aluminum plant are clearly outweighed by the large power cost savings accruing from locating the plant at a cheap-power location. This holds true even with a fairly small differential in power rates between the two locations.

Isard, W.; Parcels, L.

1977-12-01T23:59:59.000Z

377

VEHICLE DETAILS, BATTERY DESCRIPTION AND SPECIFICATIONS Vehicle...  

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

Page 1 VEHICLE DETAILS, BATTERY DESCRIPTION AND SPECIFICATIONS Vehicle Details Base Vehicle: 2011 Nissan Leaf VIN: JN1AZ0CP5BT000356 Propulsion System: BEV Electric Machine: 80 kW...

378

Final_Tech_Session_Schedule_and_Location.xls  

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

Petroleum Petroleum Recovery Research Center CO 2 /Brine/Carbonate Rock Interactions: Dissolution and Precipitation Poster presented at the Fourth Annual Conference on Carbon Capture & Sequestration, Alexandria, Virginia, May 2-5, 2005 Reid B. Grigg & Robert K. Svec, New Mexico Petroleum Recovery Research Center; Peter C. Lichtner & William Carey, Los Alamos National Laboratories; and Charles E. Lesher, University of California, Davis INTRODUCTION Determining the viability, risks, and optimal locations of sequestering carbon dioxide (CO 2 ) in the subsurface requires detailed knowledge of the complex interactions among CO 2 , rock matrix, and pore fluids under reservoir pressure and temperature. Many physical and chemical processes are known to

379

Our Locations | National Nuclear Security Administration  

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

Locations | National Nuclear Security Administration Locations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Our Locations Home > About Us > Our Locations Our Locations The NNSA's nuclear security enterprise spans eight sites, including three national laboratories, with more than six decades of cutting-edge nuclear security experience. That history and technical expertise enables NNSA to

380

Our Locations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Locations | National Nuclear Security Administration Locations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Our Locations Home > About Us > Our Locations Our Locations The NNSA's nuclear security enterprise spans eight sites, including three national laboratories, with more than six decades of cutting-edge nuclear security experience. That history and technical expertise enables NNSA to

Note: This page contains sample records for the topic "details location coso" 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.


381

Helicopter magnetic survey conducted to locate wells  

Science Conference Proceedings (OSTI)

A helicopter magnetic survey was conducted in August 2007 over 15.6 sq mi at the Naval Petroleum Reserve No. 3s (NPR-3) Teapot Dome Field near Casper, Wyoming. The surveys purpose was to accurately locate wells drilled there during more than 90 years of continuous oilfield operation. The survey was conducted at low altitude and with closely spaced flight lines to improve the detection of wells with weak magnetic response and to increase the resolution of closely spaced wells. The survey was in preparation for a planned CO2 flood for EOR, which requires a complete well inventory with accurate locations for all existing wells. The magnetic survey was intended to locate wells missing from the well database and to provide accurate locations for all wells. The ability of the helicopter magnetic survey to accurately locate wells was accomplished by comparing airborne well picks with well locations from an intense ground search of a small test area.

Veloski, G.A.; Hammack, R.W.; Stamp, V. (Rocky Mountain Oilfield Testing Center); Hall, R. (Rocky Mountain Oilfield Testing Center); Colina, K. (Rocky Mountain Oilfield Testing Center)

2008-07-01T23:59:59.000Z

382

Distribution Fault Location and Waveform Characterization  

Science Conference Proceedings (OSTI)

Automated fault location algorithms for distribution systems require monitoring equipment to record voltage and current waveforms during an event. In addition, most of these algorithms require circuit-impedance parameters to evaluate the fault location. Locating incipient faults and fault waveform characterization is the main aim of this project. This project builds on work done in 2008 towards sub-cycle blip identification using an algorithm based on arc voltage.

2009-12-11T23:59:59.000Z

383

Benchmarking of Fault-Location Technologies  

Science Conference Proceedings (OSTI)

This report resumes the studies on fault-location technologies that were conducted in 2009. These studies were undertaken in a joint project done with the collaboration of Hydro-Qubec, Long Island Power Authority, and the Electric Power Research Institute (EPRI). Two fault-location technologies were tested, the Reactance to Fault (RTF) implemented in the PQView application and the Voltage Drop Fault Location (VDFL) implemented in the MILE application. The RTF is based on substation voltage and current me...

2011-03-31T23:59:59.000Z

384

Russian Locations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Russian Locations Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing Institutional Research...

385

Locating Restricted Facilities on Binary Maps  

E-Print Network (OSTI)

The encoding could represent clean and polluted areas or desirable and undesirable zones. For this encoding, we consider several facility location problems to...

386

The Facility Location Problem with Bernoulli Demands  

E-Print Network (OSTI)

Abstract. In this paper we address a discrete capacitated facility location problem in which ...... The type of instance for FLPBD (1, 2, 3, or 4) as described above.

387

2010 Hyundai LPI Hybrid Test Cell Location  

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

Hyundai LPI Hybrid Test Cell Location APRF- 4WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Alternative Fuel Hybrid...

388

2010 Volkswagen Golf TDI Test Cell Location  

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

Golf TDI Test Cell Location APRF- 4WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional- Start Stop Vehicle...

389

Procurement Information by Location | Department of Energy  

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

Procurement Information by Location Procurement Information by Location Procurement Information by Location As part of our Small Business Opportunity Tool, we are offering information about historical procurement by location. Find historical procurement data by state - check out the list of states below, and click on the state's name to learn more about their current programs and past procurement needs. Click on the state to learn more about our current procurement activity: California Colorado District of Columbia Georgia Idaho Illinois Iowa Louisana Maryland Missouri Nevada New Jersey New Mexico New York Ohio Oklahoma Oregon Pennsylvania South Carolina Tennessee Texas Virginia West Virginia Washington Wyoming

390

Sandia National Laboratories: Locations: Albuquerque, New Mexico...  

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

Albuquerque Housing Education Recreation Locations Life in Albuquerque Photo of New Mexico landscape Albuquerque is New Mexico's largest city, with a population of more than...

391

Robotic location of underground chemical sources  

Science Conference Proceedings (OSTI)

This paper describes current progress in a project to develop robotic systems for locating underground chemical sources. There are a number of economic and humanitarian applications for this technology. Finding unexploded ordinance, land mines, and sources ... Keywords: Chemical diffusion, Chemical source location, De-mining, Robotics

R. Andrew Russell

2004-01-01T23:59:59.000Z

392

Adding Speech to Location-based Services  

Science Conference Proceedings (OSTI)

The first generation of Location-based Services (LBSs) did not succeed on the market. In order to prepare LBSs of the next generation for the challenges of pervasive service execution in different situations (e.g. while walking on the street or while ... Keywords: Human Computer Interaction (HCI), Location-based Services, Multimodality, Spoken Dialogue Systems

Patrick Nepper; Georg Treu; Axel Kpper

2008-02-01T23:59:59.000Z

393

Proxying location update for idle mode interfaces  

Science Conference Proceedings (OSTI)

In cellular networks it is the mobile node's responsibility to update the network about its location change, especially when this one enters idle mode. We developed a new framework [8] where the idle interface is powered-off to save energy and thus could ... Keywords: MIH services, idle/active mode, location-update, proxied interface, proxied multi-radio interface, proxy entity

Hicham Mahkoum; Abdelhakim S. Hafid; Behcet Sarikaya

2010-06-01T23:59:59.000Z

394

180 x 120: designing alternate location systems  

Science Conference Proceedings (OSTI)

Using 180 RFID tags to track and plot locations over time, guests to an event at the San Francisco Museum of Modern Art (SFMOMA) collectively constructed a public visualization of the individual and group activities by building a history of movement ... Keywords: RFID, crowds, design, location tracking, tessellation

Eric Paulos; Anthony Burke; Tom Jenkins; Karen Marcelo

2007-11-01T23:59:59.000Z

395

Location-Based sponsored search advertising  

Science Conference Proceedings (OSTI)

The proliferation of powerful mobile devices with built-in navigational capabilities and the adoption in most metropolitan areas of fast wireless communication protocols have recently created unprecedented opportunities for location-based advertising. ... Keywords: game theory, location-based advertising, nash equilibrium

George Trimponias, Ilaria Bartolini, Dimitris Papadias

2013-08-01T23:59:59.000Z

396

Major DOE Biofuels Project Locations | Department of Energy  

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

Major DOE Biofuels Project Locations More Documents & Publications Major DOE Biofuels Project Locations Slide 1 Major DOE Biofuels Project Locations...

397

Property:Event/Location | Open Energy Information  

Open Energy Info (EERE)

Location Location Jump to: navigation, search Property Name Event/Location Property Type String Description The location in which an event will occur. Examples: 'Golden, Colorado' or 'Prestigious Hotel: 11 Rue Leroy, Paris, France'. Pages using the property "Event/Location" Showing 25 pages using this property. (previous 25) (next 25) 1 11th Annual Workshop on Greenhouse Gas Emission Trading + Paris, France + 11th Annual Workshop on Greenhouse Gas Emission Trading Day 2 + Paris, France + 15th International Business Forum: Low Carbon High Growth - Business Models for a Changing Climate + Pretoria, South Africa + 18th Africa Partnership Forum + Paris, France + 2 2012 Bonn Climate Change Conference + Bonn, Germany + 7 7th Asia Clean Energy Forum + Manila, Philippines +

398

Property:UtilityLocation | Open Energy Information  

Open Energy Info (EERE)

UtilityLocation UtilityLocation Jump to: navigation, search Property Name UtilityLocation Property Type Boolean Description Indicates this is the "mailing" location of the Utility. Usually is Yes if the information from EIA Form 861 File1_a is on the page. Pages using the property "UtilityLocation" Showing 25 pages using this property. (previous 25) (next 25) 3 3 Phases Energy Services + true + 4 4-County Electric Power Assn + true + A A & N Electric Coop (Virginia) + true + AEP Generating Company + true + AEP Texas Central Company + true + AEP Texas North Company + true + AES Eastern Energy LP + true + AGC Division of APG Inc + true + AP Holdings LLC + true + APN Starfirst, L.P. + true + APNA Energy + true + Accent Energy Holdings, LLC + true +

399

Detection and Location of Damage on Pipelines  

SciTech Connect

The INEEL has developed and successfully tested a real-time pipeline damage detection and location system. This system uses porous metal resistive traces applied to the pipe to detect and locate damage. The porous metal resistive traces are sprayed along the length of a pipeline. The unique nature and arrangement of the traces allows locating the damage in real time along miles of pipe. This system allows pipeline operators to detect damage when and where it is occurring, and the decision to shut down a transmission pipeline can be made with actual real-time data, instead of conservative estimates from visual inspection above the area.

Karen A. Moore; Robert Carrington; John Richardson

2003-11-01T23:59:59.000Z

400

Method of locating underground mines fires  

DOE Patents (OSTI)

An improved method of locating an underground mine fire by comparing the pattern of measured combustion product arrival times at detector locations with a real time computer-generated array of simulated patterns. A number of electronic fire detection devices are linked thru telemetry to a control station on the surface. The mine's ventilation is modeled on a digital computer using network analysis software. The time reguired to locate a fire consists of the time required to model the mines' ventilation, generate the arrival time array, scan the array, and to match measured arrival time patterns to the simulated patterns.

Laage, Linneas (Eagam, MN); Pomroy, William (St. Paul, MN)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "details location coso" 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

2005 RECS Consumption and Expenditures Detailed Tables  

U.S. Energy Information Administration (EIA)

Detailed Consumption and Expenditures (C&E) tables containing Space Heating, Air-Conditioning, Water Heating, and Appliance residential energy data are now available.

402

High Precision Geophysics & Detailed Structural Exploration ...  

Open Energy Info (EERE)

icon High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Geothermal Project Jump to: navigation, search Last modified on July 22, 2011....

403

Aerosols in a Changing Atmosphere: From Detailed Aerosol Microphysics to  

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

Aerosols in a Changing Atmosphere: From Detailed Aerosol Microphysics to Aerosols in a Changing Atmosphere: From Detailed Aerosol Microphysics to Policy Applications Speaker(s): Susanne Bauer Date: December 6, 2011 - 4:00pm Location: 90-4133 Seminar Host/Point of Contact: Surabi Menon The anthropogenic increase in aerosol concentrations since preindustrial times and its net cooling effect on the atmosphere is thought to mask some of the greenhouse gas induced warming. Although the overall effect of aerosols on solar radiation and clouds is most certainly negative, some individual forcing agents and feedbacks have positive forcing effects. Recent studies have tried to identify some of those positive forcing agents and their individual emission sectors, However, understanding the net effect of multi-source emitting sectors and the involved cloud feedbacks is

404

Export.gov - Export.gov - Locations  

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

Locations Locations Print | E-mail Page Locations 800.872.8723 Domestic Offices International Offices Locations 800.872.8723 Call: 800.872.8723 (1-800-USA-TRAD(E)) Email: tic@trade.gov between 8:30 AM and 6 PM EST to receive immediate answers to your exporting questions on: Tariff and Tax Information Country-specific General Export Information Region-specific Export Information (Middle East, China, Latin America, EU, etc.) International Documentation, Regulations and Standards Logistics and Finance (HS/Schedule B numbers, Freight Forwarders, partners) Free Trade Agreements (qualifying products for FTA benefits, Certificates of origin.) Trade Data Export-related information offered by federal, state and local entities Export-related information related to other USG agencies Note for Importers: Please contact U.S. Customs at 877.227.5511

405

Fault Detection, Location, Isolation and Reconnection in ...  

A University of Colorado research team led by Jae-Do Park has developed a fault detection, location and isolation scheme for a low-voltage DC-bus microgrid system, ...

406

Developing a theory of nightclub location choice  

E-Print Network (OSTI)

This work is an investigation of the factors that influence where nightclubs locate within a city. Nightclubs, like other social spaces, provide important social and economic benefits in the urban environment. As amenities, ...

Crim, Stephen J. (Stephen Johnson)

2008-01-01T23:59:59.000Z

407

Federating location-based data services  

Science Conference Proceedings (OSTI)

With the emerging availability of small and portable devices which are able to determine their position and to communicate wirelessly, mobile and spatially-aware applications become feasible. These applications rely on information that is bound to locations ...

Bernhard Mitschang; Daniela Nicklas; Matthias Grossmann; Thomas Schwarz; Nicola Hnle

2005-01-01T23:59:59.000Z

408

Adaptive learning of semantic locations and routes  

Science Conference Proceedings (OSTI)

Adaptation of devices and applications based on contextual information has a great potential to enhance usability and mitigate the increasing complexity of mobile devices. An important topic in context-aware computing is to learn semantic locations and ...

Keshu Zhang; Haifeng Li; Kari Torkkola; Mike Gardner

2007-09-01T23:59:59.000Z

409

Adaptive learning of semantic locations and routes  

Science Conference Proceedings (OSTI)

Adaptation of devices and applications based on contextual information has a great potential to enhance usability and mitigate the increasing complexity of mobile devices. An important topic in context-aware computing is to learn semantic locations and ...

Keshu Zhang; Haifeng Li; Kari Torkkola; Mike Gardner

2007-10-01T23:59:59.000Z

410

Addressing endogeneity in residential location models  

E-Print Network (OSTI)

Some empirical residential location choice models have reported dwelling-unit price estimated parameters that are small, not statistically significant, or even positive. This would imply that households are non-sensitive ...

Guevara-Cue, Cristin Angelo

2005-01-01T23:59:59.000Z

411

Russian Locations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Locations | National Nuclear Security Administration Locations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Russian Locations Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing and Institutional R&D Programs > Russia Tri-Lab S&T Collaborations > Travel

412

Alternative Fueling Station Locator | Department of Energy  

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

Alternative Fueling Station Locator Alternative Fueling Station Locator Alternative Fueling Station Locator Find Stations Plan a Route Location: Go Start: End: Go Fuel: All Fuels Biodiesel (B20 and above) Compressed Natural Gas Electric Ethanol (E85) Hydrogen Liquefied Natural Gas (LNG) Liquefied Petroleum Gas (Propane) more search options close × More Search Options Include private stations Include planned stations Owner All Private Federal State Local Utility Payment All American Express Discover MasterCard VISA Cash Checks CFN Clean Energy Fuel Man Gas Card PHH Services Voyager WEX Electric charger types Include level 1 Include level 2 Include DC fast Include legacy chargers Limit results to within 5 miles Limit results to within 5 miles 12,782 alternative fuel stations in the United States Excluding private stations

413

Protecting location privacy: optimal strategy against localization attacks  

Science Conference Proceedings (OSTI)

The mainstream approach to protecting the location-privacy of mobile users in location-based services (LBSs) is to alter the users' actual locations in order to reduce the location information exposed to the service provider. The location obfuscation ... Keywords: location inference attacks, location privacy, location-based services, optimal defense strategy, privacy protection, service quality, stackelberg bayesian games

Reza Shokri; George Theodorakopoulos; Carmela Troncoso; Jean-Pierre Hubaux; Jean-Yves Le Boudec

2012-10-01T23:59:59.000Z

414

Exploring temporal effects for location recommendation on location-based social networks  

Science Conference Proceedings (OSTI)

Location-based social networks (LBSNs) have attracted an inordinate number of users and greatly enriched the urban experience in recent years. The availability of spatial, temporal and social information in online LBSNs offers an unprecedented opportunity ... Keywords: location recommendation, location-based social networks, temporal effects

Huiji Gao, Jiliang Tang, Xia Hu, Huan Liu

2013-10-01T23:59:59.000Z

415

TRECVID 2011 Runs and Detailed Results  

Science Conference Proceedings (OSTI)

... 3 NO AXES_DCU_4 4 TOPICS inbrief: Number: Type Text 9023 OBJECT setting sun 9024 LOCATION upstairs, inside the windmill 9025 OBJECT ...

416

Alternative Fueling Station Locations | OpenEI  

Open Energy Info (EERE)

Alternative Fueling Station Locations Alternative Fueling Station Locations Dataset Summary Description Alternative fueling stations are located throughout the United States and their availability continues to grow. The Alternative Fuels Data Center (AFDC) maintains a website where you can find alternative fuels stations near you or on a route, obtain counts of alternative fuels stations by state, view U.S. maps, and more. Access up-to-date fuel station data here: http://www.afdc.energy.gov/afdc/data_download The dataset available for download here provides a "snapshot" of the alternative fueling station information for: compressed natural gas (CNG), E85 (85% ethanol, 15% gasoline), propane/liquefied petroleum gas (LPG), biodiesel, electricity, hydrogen, and liquefied natural gas

417

Reconstructing Spatial Distributions from Anonymized Locations  

SciTech Connect

Devices such as mobile phones, tablets, and sensors are often equipped with GPS that accurately report a person's location. Combined with wireless communication, these devices enable a wide range of new social tools and applications. These same qualities, however, leave location-aware applications vulnerable to privacy violations. This paper introduces the Negative Quad Tree, a privacy protection method for location aware applications. The method is broadly applicable to applications that use spatial density information, such as social applications that measure the popularity of social venues. The method employs a simple anonymization algorithm running on mobile devices, and a more complex reconstruction algorithm on a central server. This strategy is well suited to low-powered mobile devices. The paper analyzes the accuracy of the reconstruction method in a variety of simulated and real-world settings and demonstrates that the method is accurate enough to be used in many real-world scenarios.

Horey, James L [ORNL; Forrest, Stephanie [University of New Mexico, Albuquerque; Groat, Michael [University of New Mexico, Albuquerque

2012-01-01T23:59:59.000Z

418

Utility Locating in the DOE Environment  

SciTech Connect

Some advances have been made in utility locating in recent years and standards have been recently published to try and categorize the level of information known about the utility in the subsurface. At the same time some characterization about the level of effort or technology in the geophysicist approach to utility locating may be generalized. The DOE environment poses some added difficulties and this presentation covers these issues, costs and the technical approach that has been developed at the INEEL to prevent utility hits and how it fits into the generalized classification of effort.

Clark Scott; Gail Heath

2006-04-01T23:59:59.000Z

419

SOLERAS - solar applications in remote locations  

Science Conference Proceedings (OSTI)

The purpose of this international technology workshop was to promote the exchange of research information on solar applications in remote locations. Scientists and engineers from the United States, Saudia Arabia, Central and South America, Southeast Asia, and Oceania were represented at this sixth annual workshop conducted under the auspices of the SOLERAS program. The objective of the workshop was to address the issues of construction, operation, and maintenance of solar energy systems in remote locations. Photovoltaic, wind, solar thermal, biomass, and geothermal technologies were considered. Also considered was the use of solar energy for agricultural purposes. Each paper has been separately indexed for inclusion in the Energy Data Base.

Khoshaim, B.H.; Williamson, J.S.; Meiners, A.; Mallory, R. (eds.)

1985-05-01T23:59:59.000Z

420

Where is the ideal location for a US East Coast offshore grid? Michael J. Dvorak,1  

E-Print Network (OSTI)

) employing current state-of- the-art voltage source converter based high voltage direct current (VSC-HVDC) technologies. A brief review of the VSC-HVDC evolvement is given followed by an overview of the advantages of employing VSC-HVDC for grid connection of large OWFs located remote from shore. A detailed description

Hanson, Thomas

Note: This page contains sample records for the topic "details location coso" 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

Property Types, Definitions, and Use Detail  

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

Types, Definitions, and Use Details Types, Definitions, and Use Details The property types listed on pages 1 through 7 are eligible to receive the 1-100 ENERGY STAR score. The Use Details marked with an asterisk are required in order to receive a score. Portfolio Manager now contains more than 80 property types to choose from when setting up your property, in order to best identify the primary use of your property. Although the building types for which the 1-100 ENERGY STAR score is currently available will not change, the expanded list of property types that can be selected will offer users more specific and accurate categorization for comparison. See below for the full list of property types available in Portfolio Manager, along with their definitions and the property use details that you will need to enter.

422

CBECS 1992 - Building Characteristics, Detailed Tables  

U.S. Energy Information Administration (EIA) Indexed Site

Detailed Tables Detailed Tables Detailed Tables Percent of Buildings and Floorspace by Census Region, 1992 Percent of Buildings and Floorspace by Census Region, 1992 The following 70 tables present extensive cross-tabulations of commercial buildings characteristics. These data are from the Buildings Characteristics Survey portion of the 1992 CBECS. The "Quick-Reference Guide," indicates the major topics of each table. Directions for calculating an approximate relative standard error (RSE) for each estimate in the tables are presented in Figure A1, "Use of RSE Row and Column Factor." The Glossary contains the definitions of the terms used in the tables. See the preceding "At A Glance" section for highlights of the detailed tables. Table Organization

423

Geometry-aware framebuffer level of detail  

Science Conference Proceedings (OSTI)

This paper introduces a framebuffer level of detail algorithm for controlling the pixel workload in an interactive rendering application. Our basic strategy is to evaluate the shading in a low resolution buffer and, in a second rendering pass, resample ...

Lei Yang; Pedro V. Sander; Jason Lawrence

2008-06-01T23:59:59.000Z

424

Property:Project Details | Open Energy Information  

Open Energy Info (EERE)

Details Details Jump to: navigation, search Property Name Project Details Property Type Text Pages using the property "Project Details" Showing 25 pages using this property. (previous 25) (next 25) M MHK Projects/40MW Lewis project + Aquamarine Power is developing its first commercial 40MW Oyster wave farm off the north-west coast of Lewis in Scotland. The company was granted an exclusive option on the site by UK seabed owner The Crown Estate in May 2011. MHK Projects/ADM 3 + 1/4 scale model MHK Projects/ADM 4 + Shore based PTO test MHK Projects/ADM 5 + Framework 7 program of the European Union MHK Projects/AW Energy EMEC + AW Energy successfully demonstrated a 1:3 scale prototype device at EMEC (European Marine Energy Center) in both calm and rough winter conditions. Bottom wave velocity measurements were taken concurrently using a Doppler device.

425

HLDB: location-based services in databases  

Science Conference Proceedings (OSTI)

This paper introduces HLDB, the first practical system that can answer exact spatial queries on continental road networks entirely within a database. HLDB is based on hub labels (HL), the fastest point-to-point algorithm for road networks, and ... Keywords: SQL, databases, large road networks, location services

Ittai Abraham; Daniel Delling; Amos Fiat; Andrew V. Goldberg; Renato F. Werneck

2012-11-01T23:59:59.000Z

426

Transportation Networks and Location A Geometric Approach  

E-Print Network (OSTI)

Transportation Networks and Location A Geometric Approach Belén Palop1,2 1Departamento de March 2009 Florida State University #12;Belén Palop, UVa, SUNY Outline Transportation Network Model;Transportation Network Model Belén Palop, UVa, SUNY Outline Transportation Network Model Network placement

Palop del Río, Belén

427

Job Location, Neighborhood Change, and Gentrification  

E-Print Network (OSTI)

This paper assesses the contribution of employment location to neighborhood change and to gentrification. At the tract level, average household income change is positively correlated both with the change in average pay for nearby jobs and with the start-year average pay for nearby jobs. The relationship between employment location and neighborhood change is stronger for tracts closer to downtown and for tracts in larger metropolitan areas. Change in job pay helps explain metropolitan gentrification within 2 miles of the CBD. The analysis combines Census tract household data for 1990-2000 from the Neighborhood Change Database and zip-code-level employment data for 1992-2000 from the National Establishment Time-Series database. I develop an algorithm for identifying changes in zip codes over time and for matching non-standard zip codes to Census tracts. Because causality between employment location and household location could run in both directions, I instrument for the tract-level change in average job pay with national-level industry growth and average pay.

Jed Kolko; Claudia Goldin; Rucker Johnson; Larry Katz; Jeffrey Lin; Stuart Rosenthal

2009-01-01T23:59:59.000Z

428

Location Games and Bounds for Median Problems  

E-Print Network (OSTI)

We consider a two-person zero-sum game in which the maximizer selects a point in a given bounded planar region, the minimizer selects K points in that region,.and the payoff is the distance from the maximizer's location ...

Haimovich, Mordecai

429

Detailed Monthly and Annual LNG Import Statistics (2004-2012...  

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

Detailed Monthly and Annual LNG Import Statistics (2004-2012) Detailed Monthly and Annual LNG Import Statistics (2004-2012) Detailed Monthly and Annual LNG Import Statistics...

430

2008_Transition_Program_Details_Book_Three.pdf | Department of...  

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

Administration Other Agencies You are here Home 2008TransitionProgramDetailsBookThree.pdf 2008TransitionProgramDetailsBookThree.pdf 2008TransitionProgramDetail...

431

Building Technologies Office: Past Events NewsDetail  

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

NewsDetail on Twitter Bookmark Building Technologies Office: Past Events NewsDetail on Google Bookmark Building Technologies Office: Past Events NewsDetail on Delicious Rank...

432

Property:Water Column Location | Open Energy Information  

Open Energy Info (EERE)

Column Location Jump to: navigation, search Property Name Water Column Location Property Type Text Pages using the property "Water Column Location" Showing 1 page using this...

433

Major DOE Biofuels Project Locations | Department of Energy  

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

Biomass Program Major DOE Biofuels Project Locations in the United States Major DOE Biofuels Project Locations More Documents & Publications Major DOE Biofuels Project Locations...

434

Smart Grid Demonstration Project Locations | Department of Energy  

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

Smart Grid Demonstration Project Locations Smart Grid Demonstration Project Locations Map of the United States showing the location of Smart Grid Demonstration projects created...

435

Sandia National Laboratories: Locations: Livermore, California: Visiting  

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

California California Livermore, California administration building Our location and hours of operation Sandia/California is located at 7011 East Avenue in Livermore, Calif., a suburban community about 45 miles east of San Francisco. Positioned at the eastern edge of the San Francisco Bay Area, Sandia is within easy commuting distance of many affordable housing communities in San Joaquin County and the Central Valley. The official hours of operation at Sandia/California are from 7:30 a.m. to 4 p.m. PST, Monday through Friday. General inquiries can be made by calling (925) 294-3000. See our contacts page for additional information. Getting here All three major airports in the San Francisco Bay Area provide access to Sandia/California. Oakland International Airport is the closest airport to

436

VCSEL fault location apparatus and method  

DOE Patents (OSTI)

An apparatus for locating a fault within an optical fiber is disclosed. The apparatus, which can be formed as a part of a fiber-optic transmitter or as a stand-alone instrument, utilizes a vertical-cavity surface-emitting laser (VCSEL) to generate a test pulse of light which is coupled into an optical fiber under test. The VCSEL is subsequently reconfigured by changing a bias voltage thereto and is used as a resonant-cavity photodetector (RCPD) to detect a portion of the test light pulse which is reflected or scattered from any fault within the optical fiber. A time interval .DELTA.t between an instant in time when the test light pulse is generated and the time the reflected or scattered portion is detected can then be used to determine the location of the fault within the optical fiber.

Keeler, Gordon A. (Albuquerque, NM); Serkland, Darwin K. (Albuquerque, NM)

2007-05-15T23:59:59.000Z

437

Truckstop Electrification Locator | Open Energy Information  

Open Energy Info (EERE)

Truckstop Electrification Locator Truckstop Electrification Locator Jump to: navigation, search Tool Summary Name: Truckstop Electrification Locator Agency/Company /Organization: United States Department of Energy Phase: "Evaluate Options and Determine Feasibility" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property., "Perpare a Plan" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property., "Implement the Plan" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property.

438

Study of location management for next generation personal communication networks  

Science Conference Proceedings (OSTI)

The main target of location management is to maintain location of users while minimizing the system operation. The process consists of location update, paging, and database consideration. The location update and paging manages the user-network interaction ... Keywords: centralized database (CDB), distributed database (DDB), location area scheme, location update, timer-based update strategy, velocity paging (VP)

Teerapat Sanguankotchakorn; Panuvit Wibullanon

2005-03-01T23:59:59.000Z

439

Schlumberger soundings, audio-magnetotelluric soundings and telluric  

Open Energy Info (EERE)

soundings, audio-magnetotelluric soundings and telluric soundings, audio-magnetotelluric soundings and telluric mapping in and around the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Schlumberger soundings, audio-magnetotelluric soundings and telluric mapping in and around the Coso Range, California Details Activities (4) Areas (2) Regions (0) Abstract: Results of geophysical surveys in and around the Coso Range, and in particular in the area surrounding Coso Hot Springs are reported. Electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area in the Coso rhyolite dome field and the large arcuate fracture system previously postulated to represent a stage of incipient caldera formation were studied. Six individual plates

440

First Detailed Look at RNA Dicer  

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

Detailed Look at RNA Dicer Print Detailed Look at RNA Dicer Print Scientists have gotten their first detailed look at the molecular structure of an enzyme that Nature has been using for eons to help silence unwanted genetic messages. A team of researchers with Berkeley Lab and the University of California, Berkeley, used x-ray crystallography at ALS Beamlines 8.2.1 and 8.2.2 to determine the crystal structure of Dicer, an enzyme that plays a critical role in a process known as RNA interference. The Dicer enzyme is able to snip a double-stranded form of RNA into segments that can attach themselves to genes and block their activity. With this crystal structure, the researchers learned that Dicer serves as a molecular ruler, with a clamp at one end and a cleaver at the other end a set distance away, that produces RNA fragments of an ideal size for gene-silencing.

Note: This page contains sample records for the topic "details location coso" 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.


441

First Detailed Look at RNA Dicer  

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

First Detailed Look at RNA Dicer Print First Detailed Look at RNA Dicer Print Scientists have gotten their first detailed look at the molecular structure of an enzyme that Nature has been using for eons to help silence unwanted genetic messages. A team of researchers with Berkeley Lab and the University of California, Berkeley, used x-ray crystallography at ALS Beamlines 8.2.1 and 8.2.2 to determine the crystal structure of Dicer, an enzyme that plays a critical role in a process known as RNA interference. The Dicer enzyme is able to snip a double-stranded form of RNA into segments that can attach themselves to genes and block their activity. With this crystal structure, the researchers learned that Dicer serves as a molecular ruler, with a clamp at one end and a cleaver at the other end a set distance away, that produces RNA fragments of an ideal size for gene-silencing.

442

Micro-Earthquake At Geysers Area (Laney, 2005) | Open Energy Information  

Open Energy Info (EERE)

Laney, 2005) Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Geysers Area (Laney, 2005) Exploration Activity Details Location Geysers Area Exploration Technique Micro-Earthquake Activity Date Usefulness useful DOE-funding Unknown Notes Characterization of 3D Fracture Patterns at The Geysers and Coso Geothermal Reservoirs by Shear-wave Splitting, Rial, Elkibbi, Yang and Pereyra. The raw data for the project consists of seismographic recordings of microearthquakes (MEQ) detected over many years by arrays of sensors at both The Geysers and Coso. References Patrick Laney (2005) Federal Geothermal Research Program Update - Fiscal Year 2004 Retrieved from "http://en.openei.org/w/index.php?title=Micro-Earthquake_At_Geysers_Area_(Laney,_2005)&oldid=389456

443

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

444

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

445

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

446

Using GIS and Satellite Imagery to Locate  

E-Print Network (OSTI)

The purpose of this project is to show it is possible to use remote sensing techniques to detect oil seeps and oil spills and use ArcView to determine the hydrocarbon locations. Modern remote sensing software was used to process NASA's ASTER Multispectral Images. The files were loaded with Band 3 (0.76- 0.86 m) as Red, Band 2 (0.63- 069 m) as Green and Band 1 (0.52- 0.60 m) as Blue. ASTER's 15 m ground resolution and image enhancement techniques allowed the identification of offshore oil seeps in California and the detection of oil leaking from offshore production platforms in Azerbaijan.

Jay Rauschkolb

2003-01-01T23:59:59.000Z

447

Positron Scanner for Locating Brain Tumors  

DOE R&D Accomplishments (OSTI)

A system is described that makes use of positron emitting isotopes for locating brain tumors. This system inherently provides more information about the distribution of radioactivity in the head in less time than existing scanners which use one or two detectors. A stationary circular array of 32 scintillation detectors scans a horizontal layer of the head from many directions simultaneously. The data, consisting of the number of counts in all possible coincidence pairs, are coded and stored in the memory of a Two-Dimensional Pulse-Height Analyzer. A unique method of displaying and interpreting the data is described that enables rapid approximate analysis of complex source distribution patterns. (auth)

Rankowitz, S.; Robertson, J. S.; Higinbotham, W. A.; Rosenblum, M. J.

1962-03-00T23:59:59.000Z

448

First Detailed Look at RNA Dicer  

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

Detailed Look at RNA Dicer Detailed Look at RNA Dicer First Detailed Look at RNA Dicer Print Wednesday, 25 January 2006 00:00 Scientists have gotten their first detailed look at the molecular structure of an enzyme that Nature has been using for eons to help silence unwanted genetic messages. A team of researchers with Berkeley Lab and the University of California, Berkeley, used x-ray crystallography at ALS Beamlines 8.2.1 and 8.2.2 to determine the crystal structure of Dicer, an enzyme that plays a critical role in a process known as RNA interference. The Dicer enzyme is able to snip a double-stranded form of RNA into segments that can attach themselves to genes and block their activity. With this crystal structure, the researchers learned that Dicer serves as a molecular ruler, with a clamp at one end and a cleaver at the other end a set distance away, that produces RNA fragments of an ideal size for gene-silencing.

449

CBECS 1992 - Consumption & Expenditures, Detailed Tables  

U.S. Energy Information Administration (EIA) Indexed Site

Detailed Tables Detailed Tables Detailed Tables Figure on Energy Consumption in Commercial Buildings by Energy Source, 1992 Divider Line The 49 tables present detailed energy consumption and expenditure data for buildings in the commercial sector. This section provides assistance in reading the tables by explaining some of the headings for the data categories. It will also explain the use of row and column factors to compute both the confidence levels of the estimates given in the tables and the statistical significance of differences between the data in two or more categories. The section concludes with a "Quick-Reference Guide" to the statistics in the different tables. Categories of Data in the Tables After Table 3.1, which is a summary table, the tables are grouped into the major fuel tables (Tables 3.2 through 3.13) and the specific fuel tables (Tables 3.14 through 3.29 for electricity, Tables 3.30 through 3.40 for natural gas, Tables 3.41 through 3.45 for fuel oil, and Tables 3.46 through 3.47 for district heat). Table 3.48 presents energy management and DSM data as reported by the building respondent. Table 3.49 presents data on participation in electric utility-sponsored DSM programs as reported by both the building respondent and the electricity supplier.

450

Applying Spatiotemporal and Demographic Data to Locate Next Crime Location Control #7501  

E-Print Network (OSTI)

Geographic profiling is a tool used by law enforcement to predict the location of a serial criminals next crime. A typical geographic profile outputs estimated probabilities with the input of time and location of previous crimes. In this paper, we develop a new geographic profile that is able to incorporate demographical observations while remaining an effective predictor. We assume that (1) there are buffer zones around previous crime scenes because the criminal fears capture, (2) there is distance decay as criminals prefer something about the locations where previous crimes were committed, and (3) criminals target potential victims based on income and (4) target areas based on crime rate, which are claims supported by research of serial criminals. In order to find an effective profile, we have combined two models of criminal behavior which predict the location of future crime. First, we compute probability densities using a time-weighted kernel density algorithm, which includes buffer zone

unknown authors

2010-01-01T23:59:59.000Z

451

Title, Location, Document Number Estimated Cost Description  

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

Moody to Lev, SUBJECT: NEPA 2012 APS for DOE-SRS, Dated: JAN 25 2012 Moody to Lev, SUBJECT: NEPA 2012 APS for DOE-SRS, Dated: JAN 25 2012 Title, Location, Document Number Estimated Cost Description EA Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain EA Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain Total Estimated Cost $65,000 Annual NEPA Planning Summary NEPA Reviews of Proposals to Implement Enterprise SRS Initiatives unknown The Savannah River Site Strategic Plan for 2011 - 2015 describes 12 initiatives that Enterprise SRS will pursue by applying SRS's management core competencies in nuclear materials. Implementation of new missions resulting from this effort will likely require NEPA review. However, until firm proposals are developed

452

Location of hydraulic fractures using microseismic techniques  

DOE Green Energy (OSTI)

Microearthquakes with magnitudes ranging between -6 and -2 have been observed in three successive massive injections of water at the Hot Dry Rock Geothermal Energy demonstration site at Fenton Hill, New Mexico. The injection was part of a program to increase the heat transfer area of hydraulic fractures and to decrease the flow-through impedance between wells. The microearthquakes were used in mapping the location of the extended hydraulic fractures. A downhole triaxial system positioned approximately 200 m vertically above the injection point in a shut-in production well was used for detection. The microearthquakes occurred in a north-northwest striking zone 400 m in length passing through the injection point. During a third substantially larger injection, microearthquakes occurred in a dispersed volume at distances as great as 800 m from the zone active in the first two injections.

Albright, J.A.; Pearson, C.F.

1980-01-01T23:59:59.000Z

453

Economic Impacts of Carbon Taxes: Detailed Results  

Science Conference Proceedings (OSTI)

Due to the possibility that rising concentrations of atmospheric greenhouse gases might cause undesirable climate change, policies to restrict emissions of carbon dioxide, a greenhouse gas, have been proposed. Such proposals frequently take the form of carbon taxes. This report presents the detailed results of an examination of the economic costs of carbon taxes, including where and how the U.S. economy would be impacted.

1995-01-04T23:59:59.000Z

454

www.elsevier.com/locate/fuproc  

E-Print Network (OSTI)

8 The Thief Process is a mercury removal process that may be applicable to a broad range of pulverized coal-fired combustion systems. This is 9 one of several sorbent injection technologies under development by the U.S. Department of Energy for capturing mercury from coal-fired electric 10 utility boilers. A unique feature of the Thief Process involves the production of a thermally activated sorbent in situ at the power plant. The sorbent 11 is obtained by inserting a lance, or thief, into the combustor, in or near the flame, and extracting a mixture of partially combusted coal and gas. The 12 partially combusted coal or sorbent has adsorptive properties suitable for the removal of vapor-phase mercury at flue gas temperatures that are 13 typical downstream of a power plant preheater. One proposed scenario, similar to activated carbon injection (ACI), involves injecting the extracted 14 sorbent into the downstream ductwork between the air preheater and the particulate collection device of the power plant. Initial laboratory-scale 15 and pilot-scale testing, using an eastern bituminous coal, focused on the concept validation. Subsequent pilot-scale testing, using a Powder River 16 Basin (PRB) coal, focused on the process development and optimization. The results of the experimental studies, as well as an independent 17 experimental assessment, are detailed. In addition, the results of a preliminary economic analysis that documents the costs and the potential 18 economic advantages of the Thief Process for mercury control are discussed.

William J. O' dowd; Henry W. Pennline; Mark C. Freeman; Evan J. Granite; Richard A. Hargis; Clement J. Lacher; Andrew Karash

2005-01-01T23:59:59.000Z

455

Fault Locating, Prediction and Protection (FLPPS)  

Science Conference Proceedings (OSTI)

One of the main objectives of this DOE-sponsored project was to reduce customer outage time. Fault location, prediction, and protection are the most important aspects of fault management for the reduction of outage time. In the past most of the research and development on power system faults in these areas has focused on transmission systems, and it is not until recently with deregulation and competition that research on power system faults has begun to focus on the unique aspects of distribution systems. This project was planned with three Phases, approximately one year per phase. The first phase of the project involved an assessment of the state-of-the-art in fault location, prediction, and detection as well as the design, lab testing, and field installation of the advanced protection system on the SCE Circuit of the Future located north of San Bernardino, CA. The new feeder automation scheme, with vacuum fault interrupters, will limit the number of customers affected by the fault. Depending on the fault location, the substation breaker might not even trip. Through the use of fast communications (fiber) the fault locations can be determined and the proper fault interrupting switches opened automatically. With knowledge of circuit loadings at the time of the fault, ties to other circuits can be closed automatically to restore all customers except the faulted section. This new automation scheme limits outage time and increases reliability for customers. The second phase of the project involved the selection, modeling, testing and installation of a fault current limiter on the Circuit of the Future. While this project did not pay for the installation and testing of the fault current limiter, it did perform the evaluation of the fault current limiter and its impacts on the protection system of the Circuit of the Future. After investigation of several fault current limiters, the Zenergy superconducting, saturable core fault current limiter was selected for installation. Because of some testing problems with the Zenergy fault current limiter, installation was delayed until early 2009 with it being put into operation on March 6, 2009. A malfunction of the FCL controller caused the DC power supply to the superconducting magnet to be turned off. This inserted the FCL impedance into the circuit while it was in normal operation causing a voltage resonance condition. While these voltages never reached a point where damage would occur on customer equipment, steps were taken to insure this would not happen again. The FCL was reenergized with load on December 18, 2009. A fault was experienced on the circuit with the FCL in operation on January 14, 2010. The FCL operated properly and reduced the fault current by about 8%, what was expected from tests and modeling. As of the end of the project, the FCL was still in operation on the circuit. The third phase of the project involved the exploration of several advanced protection ideas that might be at a state where they could be applied to the Circuit of the Future and elsewhere in the SCE electrical system. Based on the work done as part of the literature review and survey, as well as a number of internal meetings with engineering staff at SCE, a number of ideas were compiled. These ideas were then evaluated for applicability and ability to be applied on the Circuit of the Future in the time remaining for the project. Some of these basic ideas were implemented on the circuit including measurement of power quality before and after the FCL. It was also decided that we would take what was learned as part of the Circuit of the Future work and extend it to the next generation circuit protection for SCE. Also at this time, SCE put in a proposal to the DOE for the Irvine Smart Grid Demonstration using ARRA funding. SCE was successful in obtaining funding for this proposal, so it was felt that exploration of new protection schemes for this Irvine Smart Grid Demonstration would be a good use of the project resources. With this in mind, a protection system that uses fault interrupting switches, hi

Yinger, Robert, J.; Venkata, S., S.; Centeno, Virgilio

2010-09-30T23:59:59.000Z

456

PARSII - New Reports and Reports With New Reporting Folder Location  

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

PARSII - New Reports and Reports With New Reporting Folder Location Page 1 of 3 as of 1242011 Report Name Previous Location New Location Brief Description Multi-Project or Single...

457

Analysis of the AirTouch automatic vehicle location system's ability to locate moving vehicles  

E-Print Network (OSTI)

Automatic vehicle location systems are becoming more prevalent in diverse transportation applications. Their ability to locate vehicles can assist in locating emergency and public transit vehicles for better real-time dispatching as well as recovering stolen vehicles. Because many applications require traveling vehicles, this thesis focused on the AirTouch system's ability to accurately locate a moving vehicle. Recent AirTouch vehicle location system reports were compiled and analyzed to distinguish what factors tend to affect the accuracy of the readings. Based on the results of the reports, two sites were selected to minimize the external effects that could create inaccurate readings. Six speeds were selected ranging from 0 to 80 kmph (O to 50 mph) in 16 kmph (10 mph) increments. Each velocity was tested 20 times at each site. The location readings were compared to differential Global Positioning System (dGPS) readings which currently provide the most accurate location readings available for civilian use. The dGPS readings were also collected at each test site. It was discovered that one site produced more accurate readings compared to the other site. In addition, the longitude differences accounted for most of the error in the readings. Finally, more error was prevalent in the readings associated with the vehicle's direction of travel as opposed to readings perpendicular to the direction of travel. Based on the data analysis, it was impossible to conclude if velocity affected the accuracy of the AirTouch system. The results of this thesis have suggested that the AirTouch system does decrease in accuracy as the velocity increases among traveling vehicles. However, in one case, the accuracy of the stationary readings were less accurate compared to the non-stationary readings. At 80 kmph (50 mph), AirTouch had an approximate inaccuracy of 50 meters (164 feet). When the data was adjusted for human error, this approximate inaccuracy decreased to 33 meters (107 feet). For transit services, these averages are appropriate. When dispatching a transit vehicle, two-way communication between dispatcher and driver can verify the vehicle's exact location. Furthermore, when a customer needs to know where a vehicle is and when it should arrive, 33 to 50 meters (107 to 164 feet) is sufficient for the customers' needs.

Henry, Tracy Lynn

1995-01-01T23:59:59.000Z

458

Homodyne impulse radar hidden object locator  

DOE Patents (OSTI)

An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules. 15 figs.

McEwan, T.E.

1996-04-30T23:59:59.000Z

459

TAGGING, TRACKING AND LOCATING WITHOUT GPS  

SciTech Connect

The Savannah River National Laboratory (SRNL) was requested to lead a Law Enforcement Working Group that was formed to collaborate on common operational needs. All agencies represented on the working group ranked their need to tag, track, and locate a witting or unwitting target as their highest priority. Specifically, they were looking for technologies more robust than Global Positioning Satellite (GPS), could communicate back to the owner, and worked where normal cell phone communications did not work or were unreliable. SRNL brought together multiple technologies in a demonstration that was held in in various Alaska venues, including metropolitan, wilderness, and at-sea that met the working group's requirements. Using prototypical technologies from Boeing, On Ramp, and Fortress, SRNL was able to demonstrate the ability to track personnel and material in all scenarios including indoors, in heavily wooden areas, canyons, and in parking garages. In all cases GPS signals were too weak to measure. Bi-directional communication was achieved in areas that Wi-Fi, cell towers, or traditional radios would not perform. The results of the exercise will be presented. These technologies are considered ideal for tracking high value material such has nuclear material with a platform that allows seamless tracking anywhere in the world, indoors or outdoors.

Cordaro, J.; Coleman, T.; Shull, D.

2012-07-08T23:59:59.000Z

460

Homodyne impulse radar hidden object locator  

DOE Patents (OSTI)

An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "details location coso" 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.


461

Locating Bound Structure in an Accelerating Universe  

E-Print Network (OSTI)

Given the overwhelming evidence that the universe is currently undergoing an accelerated expansion, the question of what are the largest gravitationally bound structures remains. A couple of groups, Busha et al. 2003 (B03) and Dunner et al. 2006 (D06), have attempted to analytically define these limits, arriving at substantially different estimates due to differences in their assumptions about the velocities at the present epoch. In an effort to locate the largest bound structures in the universe, we selected the Aquarius (ASC), Microscopium (MSC), Corona Borealis (CBSC), and Shapley (SSC) superclusters for study, due to their high number density of rich Abell clusters. Simple N-body simulations, which assumed negligible intercluster mass, were used to assess the likelihood of these structures being gravitationally bound, and the predictions of the models of B03 and D06 were compared with those results. We find that ASC, and MSC contain pairs of clusters which are gravitationally bound, A2541/A2546 and A3695/...

Pearson, David W

2013-01-01T23:59:59.000Z

462

Alternative Fuels Data Center: Hydrogen Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hydrogen Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogen Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Hydrogen Fueling Station Locations on AddThis.com... More in this section... Hydrogen Basics Benefits & Considerations Stations Locations

463

Alternative Fuels Data Center: Propane Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Propane Propane Printable Version Share this resource Send a link to Alternative Fuels Data Center: Propane Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Propane Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Propane Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Propane Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Propane Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Propane Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Propane Fueling Station Locations on AddThis.com... More in this section... Propane Basics Benefits & Considerations Stations Locations Infrastructure Development

464

Uranium Lease Tracts Location Map | Department of Energy  

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

Centers Field Sites Power Marketing Administration Other Agencies You are here Home Uranium Lease Tracts Location Map Uranium Lease Tracts Location Map Uranium Lease Tracts...

465

APPENDIX A: FIGURES FIGURE 1. PROJECT LOCATION ON STATE MAP  

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

ON STATE MAP PROJECT LOCATION: MCLEAN COUNTY ILLINOIS HEARTLAND COMMUNITY COLLEGE WIND TURBINE ENVIRONMENTAL ASSESSMENT PROJECT LOCATION: LATITUDE: 40-32-14.39N NAD 83...

466

Data center design and location: Consequences for electricity...  

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

Data center design and location: Consequences for electricity use and greenhouse-gas emissions Title Data center design and location: Consequences for electricity use and...

467

Locating Climate Insecurity: Where Are the Most Vulnerable Places...  

Open Energy Info (EERE)

Twitter icon Locating Climate Insecurity: Where Are the Most Vulnerable Places in Africa? Jump to: navigation, search Name Locating Climate Insecurity: Where Are the Most...

468

Alternative Fuels Data Center: Electric Vehicle Charging Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electric Vehicle Electric Vehicle Charging Station Locations to someone by E-mail Share Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Facebook Tweet about Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Twitter Bookmark Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Google Bookmark Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Delicious Rank Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Digg Find More places to share Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on AddThis.com... More in this section... Electricity Basics Benefits & Considerations Stations Locations Infrastructure Development

469

2008_Transition_Budget_Details_Book_Four.pdf | Department of...  

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

Administration Other Agencies You are here Home 2008TransitionBudgetDetailsBookFour.pdf 2008TransitionBudgetDetailsBookFour.pdf 2008TransitionBudgetDetailsBo...

470

High Performance Windows Volume Purchase: NewsDetail  

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

NewsDetail to someone by E-mail Share High Performance Windows Volume Purchase: NewsDetail on Facebook Tweet about High Performance Windows Volume Purchase: NewsDetail on Twitter...

471

Express location: supporting coordination of mobile delivery work  

Science Conference Proceedings (OSTI)

This paper introduces Express Location, a mobile web application, supporting drivers in delivery service in the daily coordination of work. Remote communication and cooperation takes place on a shared map view around the drivers' locations and next stop, ... Keywords: CSCW, delivery service, drawing, drivers, express location, field study, location-awareness, mobility, visual representations, workspace

Markus Westerlund; Maria Normark; Lars Erik Holmquist

2011-03-01T23:59:59.000Z

472

Alternative Fuels Data Center: Biodiesel Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Station Locations to someone by E-mail Station Locations to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Fueling Station Locations on AddThis.com... More in this section... Biodiesel Basics Benefits & Considerations Stations Locations Infrastructure Development Vehicles Laws & Incentives Biodiesel Fueling Station Locations Find biodiesel (B20 and above) fueling stations near an address or ZIP code

473

Categorical Exclusion Determinations: Other Location | Department of Energy  

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

Other Location Other Location Categorical Exclusion Determinations: Other Location Location Categorical Exclusion Determinations issued for actions in other locations. DOCUMENTS AVAILABLE FOR DOWNLOAD September 28, 2011 CX-006938: Categorical Exclusion Determination Developing Lithium-Ion Cells for Electric Vehicle Batteries CX(s) Applied: B3.6 Date: 09/28/2011 Location(s): Daejeon, South Korea, Other Location Office(s): Energy Efficiency and Renewable Energy, Savannah River Operations Office September 28, 2011 CX-006922: Categorical Exclusion Determination Amerigon Waste Heat Recovery Program for Passenger Vehicles CX(s) Applied: A9, B3.6 Date: 09/28/2011 Location(s): Germany, California, Indiana, Michigan Office(s): Energy Efficiency and Renewable Energy, Savannah River Operations Office

474

LCIS: a boundary hierarchy for detail-preserving contrast reduction  

Science Conference Proceedings (OSTI)

Keywords: displays, level of detail algorithms, non-realistic rendering, radiosity, signal processing, weird math

Jack Tumblin; Greg Turk

1999-07-01T23:59:59.000Z

475

Alternative Fuels Data Center: Ethanol Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Fueling Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Ethanol Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Ethanol Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Ethanol Fueling Station Locations on AddThis.com... More in this section... Ethanol Basics Benefits & Considerations Stations Locations Infrastructure Development Vehicles Laws & Incentives Ethanol Fueling Station Locations Find ethanol (E85) fueling stations near an address or ZIP code or along a

476

Categorical Exclusion Determinations: Other Location | Department of Energy  

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

Other Location Other Location Categorical Exclusion Determinations: Other Location Location Categorical Exclusion Determinations issued for actions in other locations. DOCUMENTS AVAILABLE FOR DOWNLOAD September 24, 2013 CX-010914: Categorical Exclusion Determination Pilot Testing of a Highly Efficient Pre-Combustion Sorbent-Based Carbon Capture System (SUMMARY Categorical Exclusion (CX)) CX(s) Applied: A9, A11, B3.6 Date: 09/24/2013 Location(s): Multiple States, China, Canada Offices(s): National Energy Technology Laboratory August 21, 2013 CX-010781: Categorical Exclusion Determination A Geomechanical Model for Gas Shales Based on Integration of Stress CX(s) Applied: A9, A11, B3.6 Date: 08/21/2013 Location(s): Pennsylvania Offices(s): National Energy Technology Laboratory August 16, 2013

477

Alternative Fueling Station Locator - Mobile | Open Energy Information  

Open Energy Info (EERE)

Fueling Station Locator - Mobile Fueling Station Locator - Mobile Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Alternative Fueling Station Locator - Mobile Agency/Company /Organization: United States Department of Energy Partner: National Renewable Energy Laboratory Sector: Energy Focus Area: Transportation Phase: Evaluate Options, Prepare a Plan Resource Type: Online calculator User Interface: Mobile Device Website: www.afdc.energy.gov/afdc/locator/m/stations/ Web Application Link: www.afdc.energy.gov/afdc/locator/m/stations/ Cost: Free References: National Renewable Energy Laboratory Advanced Vehicles and Fuels Research: Data and Resources[1] Logo: Alternative Fueling Station Locator - Mobile Find fueling stations for your alternative fuel vehicle on-the-go with the

478

2007 Solar Decathlon Detailed Event Schedule  

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

DETAILED EVENT SCHEDULE DETAILED EVENT SCHEDULE Last updated on September 14, 2007 Note: This schedule is subject to change at any time. 12:00 AM 12:30 AM 1:00 AM 1:30 AM 2:00 AM 2:30 AM 3:00 AM 3:30 AM 4:00 AM 4:30 AM 5:00 AM 5:30 AM 6:00 AM 6:30 AM 7:00 AM 7:30 AM 8:00 AM 8:30 AM 9:00 AM 9:30 AM 10:00 AM 10:30 AM 11:00 AM 11:30 AM 12:00 PM 12:30 PM 1:00 PM 1:30 PM 2:00 PM 2:30 PM 3:00 PM 3:30 PM 4:00 PM 4:30 PM 5:00 PM 5:30 PM 6:00 PM 6:30 PM 7:00 PM 7:30 PM 8:00 PM 8:30 PM 9:00 PM 9:30 PM 10:00 PM 10:30 PM 11:00 PM 11:30 PM 12:00 AM 12:30 AM 1:00 AM 1:30 AM 2:00 AM 2:30 AM 3:00 AM 3:30 AM 4:00 AM 4:30 AM 5:00 AM 5:30 AM 6:00 AM 6:30 AM 7:00 AM 7:30 AM 8:00 AM 8:30 AM 9:00 AM 9:30 AM 10:00 AM 10:30 AM 11:00 AM 11:30 AM 12:00 PM 12:30 PM 1:00 PM 1:30 PM 2:00 PM 2:30 PM 3:00 PM 3:30 PM 4:00 PM 4:30 PM 5:00 PM 5:30 PM 6:00 PM 6:30 PM 7:00 PM 7:30 PM 8:00

479

Sensitivity of PDR Calculations to Microphysical Details  

E-Print Network (OSTI)

Our understanding of physical processes in Photodissociation regions or Photon Dominated Regions (PDRs) largely depends on the ability of spectral synthesis codes to reproduce the observed infrared emission-line spectrum. In this paper, we explore the sensitivity of a single PDR model to microphysical details. Our calculations use the Cloudy spectral synthesis code, recently modified to include a wealth of PDR physical processes. We show how the chemical/thermal structure of a PDR, along with the calculated spectrum, changes when the treatment of physical processes such as grain physics and atomic/molecular rates are varied. We find a significant variation in the intensities of PDR emission lines, depending on different treatments of the grain physics. We also show how different combinations of the cosmic-ray ionization rate, inclusion of grain-atom/ion charge transfer, and the grain size distribution can lead to very similar results for the chemical structure. Additionally, our results show the utility of Cloudy for the spectral modeling of molecular environments.

N. P. Abel; P. A. M. van Hoof; G. Shaw; G. J. Ferland; T. Elwert

2008-08-19T23:59:59.000Z

480

Etherthreads : an infrastructure for location-based messages  

E-Print Network (OSTI)

This thesis proposes an infrastructure for location-based services for Bluetooth enabled cellular phones. Specifically, it explores the use of this architecture in a location-based messaging application. A user can send ...

Lassey, Bradford, 1980-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "details location coso" from the National Library of EnergyBeta (NLEBeta).
While these samples are repr