AN UPDATED SURVEY OF NON-CONDENSIBLE GASES EVOLUTION AT LOS AZUFRES, MEXICO, GEOTHERMAL RESERVOIR
- Location
- Los Azufres, Mexico
- Conference
- Stanford Geothermal Workshop
- Year
- 1997
- Language
- English
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Abstract
Evolution and spatial distribution of non-condensible gases at Los Azufres geothermal field are reported. This reservoir has been under continuous exploitation since 1982. The observed evolution of gases is heterogeneous in different wells and, sometimes, an unpredictable and surprising evolution is observed. Simultaneously to fluid extraction, important amounts of low enthalpy liquid and air are reinjected into the reservoir. Nitrogen separates from the air mixture migrating to production zones following high permeability paths. We postulate an hypothesis in order to explain this evolution, that is related to the fractured and faulted reservoir's nature and to N2, injection.
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