Author: Washington (State). Division of Geology & Earth ResourcesPublisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 37
Book Description
The Low Temperature Geothermal Resource of the Yakima Region
Author: Washington (State). Division of Geology & Earth ResourcesPublisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 37
Book Description
Low-temperature Geothermal Resource and Stratigraphy of Portions of Yakima County, Washington
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The low-temperature geothermal resource of portions of Yakima County, south-central Washington, is defined by several least squares linear regression analyses of bottom-hole temperature and depth data. Intra-borehole flow prevents the use of borehole temperature gradients for geothermal resource assessment. Bottom-hole temperature and depth data were separated into fourteen well data groups based on geographic proximity, land slope azimuth, and position within the regional ground-water flow system. The regression analyses of these well data groups indicate that the projected land-surface temperature and geothermal gradient range from 10.6 to 14.0°C and from 24.9 to 52.2°C/km, respectively. The depth to the 20°C isotherm ranges from 142 to 346m. The average projected land-surface temperature and geothermal gradient are approximately 11.3°C and 43.0°C/km, respectively. The average depth to the 20°C isoterm is approximately 202m. The projected land-surface temperature appears to decrease and the depth to the 20°C isotherm appears to increase as the land-surface elevation of the well dat group increases. Stratigraphic correlation diagrams developed from borehole geophysical and lithologic logs are given for localities within the lower Yakima, Black Rock, Moxee, Ahtanum, Cowiche, and Naches valleys. These correlation diagrams are combined with their respective borehole temperatue logs and well data group predicted temperature curves to assess the validity of the regression analyses and to determine aquifer locations, temperatures, and directions of intra-borehole flow.
The Low-temperature Geothermal Resource and Stratigraphy of Portions of Yakima County, Washington
Author: John BigganePublisher:
ISBN:
Category : Geology
Languages : en
Pages : 128
Book Description
Water Resources Division in the 1980's
Author: Edith B. ChasePublisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 306
Book Description
The Low-temperature Geothermal Resource of the Moses Lake-Ritzville-Connell Area, East-central Washington
Author: Scott Edward WidnessPublisher:
ISBN:
Category : Geothermal resources
Languages : en
Pages : 714
Book Description
Geological Survey Circular
Author: Geothermal Energy Update
Author: Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 520
Book Description
U.S. Geological Survey Circular
Author: Energy Research Abstracts
Author: Low-temperature Geothermal Resources of Washington
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 58
Book Description
This report presents information on the location, physical characteristics, and water chemistry of low-temperature geothermal resources in Washington. The database includes 941 thermal (>20C or 68F) wells, 34 thermal springs, lakes, and fumaroles, and 238 chemical analyses. Most thermal springs occur in the Cascade Range, and many are associated with stratovolcanoes. In contrast, 97 percent of thermal wells are located in the Columbia Basin of southeastern Washington. Some 83.5 percent are located in Adams, Benton, Franklin, Grant, Walla Walla, and Yakima Counties. Yakima County, with 259 thermal wells, has the most. Thermal wells do not seem to owe their origin to local sources of heat, such as cooling magma in the Earths̀ upper crust, but to moderate to deep circulation of ground water in extensive aquifers of the Columbia River Basalt Group and interflow sedimentary deposits, under the influence of a moderately elevated (41C/km) average geothermal gradient.