| Autor: |
Garcia, Julio, Hartline, Craig, Walters, Mark, Wright, Melinda, Rutqvist, Jonny, Dobson, Patrick F, Jeanne, Pierre |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Garcia, J; Hartline, C; Walters, M; Wright, M; Rutqvist, J; Dobson, PF; et al.(2015). The Northwest Geysers EGS Demonstration Project, California: Part 1: Characterization and reservoir response to injection. Geothermics, 63, 97-119. doi: 10.1016/j.geothermics.2015.08.003. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/9fw929zm |
| DOI: |
10.1016/j.geothermics.2015.08.003. |
| Popis: |
An Enhanced Geothermal System (EGS) Demonstration Project is currently underway in the Northwest Geysers. The project goal is to demonstrate the feasibility of stimulating a deep high-temperature reservoir (HTR) (up to 400°C, 750°F). Two previously abandoned wells, Prati State 31 (PS-31) and Prati 32 (P-32), were reopened and deepened to be used as an injection and production doublet to stimulate the HTR. The deepened portions of both wells have conductive temperature gradients of 10°F/100ft (182°C/km), produce connate native fluids and magmatic gas, and the rocks were isotopically unexchanged by meteoric water. The ambient temperature meteoric water injected into these hot dry rocks has evidently created a permeability volume of several cubic kilometers as determined by seismic monitoring. Preliminary isotopic analyses of the injected and produced water indicate that 50–75% of the steam from the created EGS reservoir is injection-derived. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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