Case study of the Wendel-Amedee Exploration Drilling Project, Lassen County, California, User Coupled Confirmation Drilling Program

Technical Report · Sat Sep 01 00:00:00 EDT 1984

DOI:https://doi.org/10.2172/5060475· OSTI ID:5060475

Zeisloft, J; Sibbett, B S; Adams, M C

The Wendel-Amedee KGRA is located in Honey Lake basin in Lassen County, California, on the boundary between the Modoc Plateau and the Basin and Range geologic provinces. A variety of geophysical surveys was performed over the project property. Geophysical data helped in establishing the regional structural framework, however, none of the geophysical data is sufficiently refined to be considered suitable for the purpose of siting an exploration drill hole. Drilling of reservoir confirmation well WEN-1 took place from August 1 to September 22, 1981. Pulse and long-term flow testing subjected the reservoir to a maximum flow of 680 gpm for 75 hours. At that rate, the well exhibited a productivity index of 21.6 gpm/psi; the reservoir transmissivity was 3.5 x 10/sup 6/ md-ft/cp. The maximum bottom-hole temperature recorded during testing was 251/sup 0/F. The conceptual model of the geothermal resource at Wendel Hot Springs calls on ground water, originating in the neighboring volcanic highlands, descending through jointed and otherwise permeable rocks into the granitic basement. Once in the basement, the fluid is heated as it continues its descent, and lateral movement as dictated by the hydrologic gradient. It then rises to the discharge point along transmissive faults. 45 refs., 28 figs., 3 tabs.

• Research Organization: Utah Univ. Research Inst., Salt Lake City (USA). Earth Sciences Lab.
• DOE Contract Number: AC07-79ID12079
• OSTI ID: 5060475
• Report Number(s): DOE/ID/12079-127; ESL-162; ON: DE86002013
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
CALIFORNIA
HOT-WATER SYSTEMS
KGRA
GEOLOGY
GEOCHEMISTRY
GEOLOGIC FAULTS
GEOPHYSICAL SURVEYS
GEOTHERMAL GRADIENTS
GEOTHERMAL WELLS
STRATIGRAPHY
WATER CHEMISTRY
WELL DRILLING
WELL LOGGING
CHEMISTRY
DRILLING
ENERGY SYSTEMS
FEDERAL REGION IX
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOTHERMAL SYSTEMS
HYDROTHERMAL SYSTEMS
NORTH AMERICA
SURVEYS
TEMPERATURE GRADIENTS
USA
WELLS
Geothermal Legacy