Pre-exploitation state of the Ahuachapán geothermal field, El Salvador

By: , and 



The lithology and structural features of the Ahuachapán geothermal area and their impact on the movement of cold and hot fluids within the system are described, as well as the development and evaluation of the natural state model of the field. Four major lithologic units are present in Ahuachapán and three major aquifers have been identified; flow patterns and zones of fluid mixing were located on the basis of temperature and geochemical data from wells and surface manifestations. Geologic structures control the heat and fluid recharge and the flow within the reservoir. Modeling studies suggest, in agreement with field data, an overall average transmissivity of 25–35 darcy-meters, and indicate that the system is recharged by waters with temperatures greater than 250°C. The total thermal throughflow for the Ahuachapán reservoir in the unexploited state is estimated to be about 250 MWt.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Pre-exploitation state of the Ahuachapán geothermal field, El Salvador
Series title Geothermics
DOI 10.1016/0375-6505(91)90002-D
Volume 20
Issue 1-2
Year Published 1991
Language English
Publisher Elsevier
Description 22 p.
First page 1
Last page 22
Online Only (Y/N) N
Additional Online Files (Y/N) N
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