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Title: Raft River geoscience case study

Abstract

The Raft River Geothermal Site has been evaluated over the past eight years by the United States Geological Survey and the Idaho National Engineering Laboratory as a moderate-temperature geothermal resource. The geoscience data gathered in the drilling and testing of seven geothermal wells suggest that the Raft River thermal reservoir is: (a) produced from fractures found at the contact metamorphic zone, apparently the base of detached normal faulting from the Bridge and Horse Well Fault zones of the Jim Sage Mountains; (b) anisotropic, with the major axis of hydraulic conductivity coincident to the Bridge Fault Zone; (c) hydraulically connected to the shallow thermal fluid of the Crook and BLM wells based upon both geochemistry and pressure response; (d) controlled by a mixture of diluted meteoric water recharging from the northwest and a saline sodium chloride water entering from the southwest. Although the hydrogeologic environment of the Raft River geothermal area is very complex and unique, it is typical of many Basin and Range systems.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Idaho National Engineering Lab., Idaho Falls (USA)
OSTI Identifier:
6098820
Report Number(s):
EGG-2125-Vol.1
ON: DE82003355
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; GEOTHERMAL WELLS; WATER CHEMISTRY; RAFT RIVER VALLEY; GEOLOGY; HYDROLOGY; WELL LOGGING; CALIPER LOGGING; DATA ANALYSIS; FRACTURES; GAMMA-GAMMA LOGGING; GEOCHEMISTRY; GEOTHERMAL FIELDS; GEOTHERMAL FLUIDS; GROUND WATER; INDUCTION LOGGING; LITHOLOGY; METEORIC WATER; NEUTRON LOGGING; SODIUM CHLORIDES; SONIC LOGGING; SP LOGGING; TESTING; ALKALI METAL COMPOUNDS; CHEMISTRY; CHLORIDES; CHLORINE COMPOUNDS; ELECTRIC LOGGING; FAILURES; FLUIDS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; IDAHO; NORTH AMERICA; OXYGEN COMPOUNDS; PACIFIC NORTHWEST REGION; RADIOACTIVITY LOGGING; SODIUM COMPOUNDS; USA; WATER; WELLS; Geothermal Legacy; 150201* - Geology & Hydrology of Geothermal Systems- USA- (-1989); 150300 - Geothermal Exploration & Exploration Technology

Citation Formats

Dolenc, M.R., Hull, L.C., Mizell, S.A., Russell, B.F., Skiba, P.A., Strawn, J.A., and Tullis, J.A. Raft River geoscience case study. United States: N. p., 1981. Web. doi:10.2172/6098820.
Dolenc, M.R., Hull, L.C., Mizell, S.A., Russell, B.F., Skiba, P.A., Strawn, J.A., & Tullis, J.A. Raft River geoscience case study. United States. doi:10.2172/6098820.
Dolenc, M.R., Hull, L.C., Mizell, S.A., Russell, B.F., Skiba, P.A., Strawn, J.A., and Tullis, J.A. Sun . "Raft River geoscience case study". United States. doi:10.2172/6098820. https://www.osti.gov/servlets/purl/6098820.
@article{osti_6098820,
title = {Raft River geoscience case study},
author = {Dolenc, M.R. and Hull, L.C. and Mizell, S.A. and Russell, B.F. and Skiba, P.A. and Strawn, J.A. and Tullis, J.A.},
abstractNote = {The Raft River Geothermal Site has been evaluated over the past eight years by the United States Geological Survey and the Idaho National Engineering Laboratory as a moderate-temperature geothermal resource. The geoscience data gathered in the drilling and testing of seven geothermal wells suggest that the Raft River thermal reservoir is: (a) produced from fractures found at the contact metamorphic zone, apparently the base of detached normal faulting from the Bridge and Horse Well Fault zones of the Jim Sage Mountains; (b) anisotropic, with the major axis of hydraulic conductivity coincident to the Bridge Fault Zone; (c) hydraulically connected to the shallow thermal fluid of the Crook and BLM wells based upon both geochemistry and pressure response; (d) controlled by a mixture of diluted meteoric water recharging from the northwest and a saline sodium chloride water entering from the southwest. Although the hydrogeologic environment of the Raft River geothermal area is very complex and unique, it is typical of many Basin and Range systems.},
doi = {10.2172/6098820},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {11}
}