Interpretation of Interference Data from the Klamath Falls, Oregon Geothermal Resource

Conference · Thu Dec 15 04:00:00 EST 1983

OSTI ID:889587

Benson, S M

Data from a seven week pressure interference test 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 matrix blocks contribute significantly to the reservoir storage capacity. Detailed analysis of data from two wells is presented. Data from both of the wells yield a reservoir permeability-thickness (kh) of approximately 1.3x10{sup 6} md-ft and a storativity of 6.8x10{sup -3} ft/psi. The parameters ({lamda} and {omega}), 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 transients are not very 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 which supplies hot water to the shallow hydrothermal system does not behave according to the cassical model of either a barrier or constant potential boundary.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
• Sponsoring Organization: USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AT03-80SF11459
• OSTI ID: 889587
• Report Number(s): SGP-TR-74-22
• Country of Publication: United States
• Language: English

Related Subjects

Geothermal Legacy