| Title | A Conceptual Model of the Wendel-Amedee Geothermal System, Lassen County, CA |
|---|---|
| Authors | Juncal, Russell W.; Bohm, Burkhard |
| Year | 1987 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Reservoir Engineering; Well Testing; California; Lassen; Models; Faults; Interference Testing; Transmissity; Temperature |
| Abstract | The Wendel Amedee KGRA is located along the northeastern edge of the Honey Lake Valley in eastern Lassen County, CA. The Valley a complexly faulted graben which leis at the junction of the Modoc Plateau, Sierra Nevada and Basin and Range geologic provinces. Interference testing of 3 deep geothermal wells indicates production from a fractured double porosity system. Drilling and testing results, along with earlier geophysical surveys, imagery analysis and isotope geochemistry suggest that the Wendel Amedee system is part of a large flow system with recharge in the Sierra Nevada to the southwest. For is largely confined within fractured basement rock by low permeability volcanic and lacrustrine sediments, allowing little communication with shallow groundwater. Waters penetrate to depths of 7000 ft or more beneath the Valley floor and are heated by above average regional heat flow before rising along N-NE trending faults. |