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Geomechanics Applied To Reservoir Development In The Coso Geothermal Field, Andrew J. Nygren
Geomechanics Applied To Reservoir Development In The Coso Geothermal Field, Andrew J. Nygren
Theses and Dissertations
The Coso geothermal field is located approximately 220 kilometers north of Los Angeles, CA. In 2002, a project began to develop the east flank of the Coso geothermal field into an enhanced geothermal system (EGS); in such a system water is injected via injection well(s) into hot dry basement rock through naturally occurring or stimulated fractures. The injected water gathers heat from the reservoir rock before being extracted for direct use or energy production. To develop such a reservoir, adequate understanding of the reservoir geomechanics is necessary. This thesis investigates the state of stress and rock fractures, the existing permeable …