Injectivity Test At Long Valley Caldera Geothermal Area (Morin, Et Al., 1993)
Exploration Activity: Injectivity Test At Long Valley Caldera Geothermal Area (Morin, Et Al., 1993)
|Exploration Activity Details|
|Location||Long Valley Caldera Geothermal Area|
|Exploration Technique||Injectivity Test|
|Activity Date||- 1992|
An injection test was run following completion of Phase II drilling of LVEW after the well was cased to 2313 m depth, leaving a 215 m uncased interval of metasedimentary rock at the bottom of the wellbore.
A flow meter was placed downhole during the injection test, and the decline in the water level in the wellbore was monitored from the surface following injection. The results of this injection test are difficult to interpret due to possible flow of injected water into the annulus between the well casings, however an upper permeability limit of 0.001 millidarcy for the open hole section of the well is considered accurate.
- Roger H. Morin, Michael L. Sorey, Ronald D. Jacobson (1993) Results of the Flowmeter-Injection Test in the Long Valley Exploratory Well (Phase II), Long Valley, California
- Christopher D. Farrar, Michael L. Sorey, Evelyn Roeloffs, Devin L. Galloway, James F. Howle, Ronald Jacobson (2003) Inferences On The Hydrothermal System Beneath The Resurgent Dome In Long Valley Caldera, East-Central California, USA, From Recent Pumping Tests And Geochemical Sampling