Geothermic Plants

Geothermic Plants

The geothermic system of ICE (Costa Rican Institute of Electricity) has been developed on the foothills of the Miravalles that inherits the name of the four units that are presently in operation: Miravalles I, Miravalles II, Miravalles III and Boca de Pozo. The Geothermic Plant in Miravalles represents an answer to the energy crisis from ICE in the years of 1973 and 1974. This situation affected the supply and cost of fuel that came from oil, it became difficult for countries that depended exclusively on hydrocarbons for basic energy needs. It is of great convenience that Costa Rica has another source for the generation of natural resources, that don’t depend on hydrological conditions. The plant is located in the district of La Fortuna in Bagaces County, the province of Guanacaste. As part of the development program in the geothermic field, they have created 57 wells making up a total of  approximately 92.844 meters, 34 of which are for production, 17 are for reinsertion and 6 are exploratory. At present they are currently working on the perforation of well 66 of 2.000 meters in the area of Miravalles. These wells are drilled using a machine that is similar to that of an oil drill, using spinning drill bits, whose surface diameter is 660 millimeters (26 inches), and 216 millimeters (8 inches)  in depth.  The hole that is left by these stainless steel drill bits, has a diameter that varies from between 508 millimeters (20 inches) and 194 millimeters (9 inches). A  special cement that is injected from the surface is attached to the middle of the drill.