Interpretation of interference data from the Klamath Falls geothermal resource, Oregon

Journal Article · · Geo-Heat Cent. Q. Bull.; (United States)

OSTI ID:6881784

Benson, S M

Data from a seven-week pressure interference test conducted in the Klamath Falls, Oregon, geothermal resource have been analyzed. The data indicate that productive wells are fed by a highly permeable fracture network and that the less permeable rock matrix contribute significantly to the reservoir storage capacity. Detailed analysis of data from two wells monitored during the test is presented. Data from both of the wells yield a reservoir permeability-thickness (kh) of approximately 1.3 x 10/sup 6/ md-ft and a storativity of 6.8 x 10/sup -3/ ft/psi. The double porosity parameters, which are determined by the distribution of permeability and storativity between the matrix and fractures, vary by more than an order of magnitude. A sensitivity study shows that for these wells, the pressure response is not vary sensitive to the distribution of permeability and storativity between the fractures and matrix blocks. No hydrologic boundaries were detected during the test. This indicates that the fault supplying hot water to the shallow hydrothermal system does not behave according to the classic mode of either a barrier or constant potential boundary. 10 references.

• Research Organization: Lawrence Berkely Lab., CA
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6881784
• Journal Information: Geo-Heat Cent. Q. Bull.; (United States), Journal Name: Geo-Heat Cent. Q. Bull.; (United States) Vol. 8:2; ISSN GCQBD
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150904* -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
DATA
DATA ANALYSIS
DIMENSIONS
ENERGY SYSTEMS
FEDERAL REGION X
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOTHERMAL SYSTEMS
GEOTHERMAL WELLS
HYDROTHERMAL SYSTEMS
INFORMATION
NORTH AMERICA
OREGON
PERMEABILITY
POROSITY
PRESSURE MEASUREMENT
TESTING
THICKNESS
USA
WELLS