Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems Experiment

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Conference Proceedings: Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems Experiment

Abstract
The Coso Geothermal Field is a large, high temperature system located in California on the western edge of the Basin and Range province. Well 46A-19RD, located in the southwestern portion of this field is currently the focus of a DOE-funded Enhanced Geothermal Systems (EGS) project. Petrologic and petrographic investigations of the well show that quartz diorite and granodiorite are dominant lithologies. Dikes of granophyre, containing phenocrysts of plagioclase, potassium feldspar, and quartz were encountered at approximately 1438-1457 m and 3459.5-3505.2 m. In contrast to the other rock types, the dikes are weakly altered. Granodiorite, in contact with the granophyre at 3474.7 m, is faulted and hydrothermally altered. This fault zone is a prime target for stimulation.

Authors 
Kovac, K.M.; Moore, J.N.; Rose, P.E.; McCulloch and J.








Published 
Geothermal Resource Council Transactions 2006, 1/1/2006





DOI 
Not Provided
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Citation

Kovac, K.M.; Moore, J.N.; Rose, P.E.; McCulloch, J.. 1/1/2006. Geology of Injection Well 46A-19RD in the Coso Enhanced Geothermal Systems Experiment. Proceedings of (!) ; (!) : Geothermal Resource Council Transactions 2006.


Related Geothermal Exploration Activities
Activities (1)


Areas (1)
  1. Coso Geothermal Area
Regions (0)