Production-Injection at the Miravalles Geothermal Field, Costa Rica
- Key words
- Production, injection, Miravalles geothermal field, pressure decline, non-condensable gases, Costa Rica.
- Location
- Miravalles, Costa Rica
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 6. Case Histories
- Language
- English
- Paper number
- 0633
Full text
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Abstract
The Miravalles Geothermal Field has been producing electric energy since March 1994. It has provided steam for Unit 1 (55 MW, installed in 1994), a wellhead unit (5 MW, 1995), Unit 2 (55 MW, 1998) and Unit 3 (29 MW, 2000). A 19 MW “bottoming cycle” plant (Unit 5), that was completed in January 2004, has brought the total installed capacity in Miravalles to 163 MWe.
The field has supplied the steam and brine needed to generate power during fifteen years of exploitation (1994-2009). The performance of the field in terms of its production-injection behavior in response to exploitation is described in the following sections.
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