Wen-1: First Successful Well in the Wendel-Amedee KGRA
- Key words
- Exploration; Drilling; USA; California; Lassen; Flow Rate; Salinity; Hot Springs; Basalt; Temperatures; Casing; Flow Testing
- Location
- Wendel Hot Springs, California
- Conference
- Geothermal Resources Council Transactions
- Year
- 1982
- Session
- Exploration; Well logging; Well testing; Flow testing; Geoch
- Language
- English
Abstract
Field exploration activities initiated by GeoProducts Corp in 1977 culminated in the successful completion of a deep production well in Sept. 1981. The well was drilled to a depth of 5823' and completed in a fractured, dominately granodiorite lithology. A broad fault zone with associated fracturing occurs at approximately 5300'-5335' and served as the main production zone. Well testing has indicated a highly productive well with no immediate boundaries. Long term testing was conducted at a constant artesian flow rate of 670 gpm with a maximum downhole temperature during for of 251F. The thermal fluid is a Na-SO4-C1 type of low salinity. Various geothermometers suggest that the fluid originates from a reservoir in the 275-310 F range. Further study and refinement of the system model is ongoing in preparation for further deep drilling.
Copyright 1982, Geothermal Resources Council. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.