The Tres Virgenes geothermal field in Baja California State, in Mexico, is located at Santa Rosalia Basin. This geothermal system is related to a quaternary volcanic complex, composed of three volcanoes, the reservoir is a liquid dominant type, besides, it is highly influenced by fractures rocks and storage fluid at high temperature, it began been explored at 1983 by ComisiŰn Federal de Electricidad. In 1997 initiated the first stage of ěLas Tres Virgenesî geothermal project with two 5 MW units, increasing to four the number of geothermal field in development. To present, nine wells have been drilled, 6 are producers and 3 are reinjectors, with depths range between 1290 to 2500 m. The water produced by wells has a sodium-chloride composition, characteristics of geothermal brine completely equilibrate at a temperature estimated of 280 ?C. The main problems occurring in production wells is the scaling and plugging in pipes and reservoir feed zones as consequence of silica and calcite, it cause a high and fast decline production wells conditions, including CFE had employed acidizing methods to improve the production characteristics of some wells, due to, a statistical method named ědecision analysisî were applied to select the best options related to the future new wells production estimated under all possible sceneries

Press the Back button in your browser, or search again.

Copyright 2005, International Geothermal Association: Readers who download papers from this site should honor the copyright of the original authors and may not copy or distribute the work further without the permission of the original publisher.