Please use this identifier to cite or link to this item: http://repositorio.ineel.mx/jspui/handle/123456789/236
Equilgas program to estimate temperatures and in situ two-phase conditions in geothermal reservoirs using three combined FT-HSH gas equilibria models
ROSA MARIA BARRAGAN REYES
VICTOR MANUEL ARELLANO GOMEZ
Acceso Abierto
Artículo
Inglés
17-Dec-2015
Exploration and exploitation of geothermal resources require the estimation of important physical characteristics of reservoirs including temperatures, pressures and in situ two-phase conditions, in order to evaluate possible uses and/or investigate changes due to exploitation. As at relatively high tempera- tures (4 150 °C) reservoir fluids usually attain chemical equilibrium in contact with hot rocks, different models based on the chemistry of fluids have been developed that allow deep conditions to be estimated. Currently either in water-dominated or steam-dominated reservoirs the chemistry of steam has been useful for working out reservoir conditions. In this context, three methods based on the Fischer Tropsch (FT) and combined H2S H2 (HSH) mineral-gas reactions have been developed for estimating tempera- tures and the quality of the in situ two-phase mixture prevailing in the reservoir. For these methods the mineral buffers considered to be controlling H2S H2 composition of fluids are as follows. The pyrite- magnetite buffer (FT-HSH1); the pyrite-hematite buffer (FT-HSH2) and the pyrite-pyrrhotite buffer (FT- HSH3).
http://repositorio.ineel.mx/jspui/handle/123456789/236
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