Eleven producing wells of the Palinpinon geothermal field have been monitored for major reactive gas components over the period 1998-2010. Based on H2O, CO2, H2S, H2, and CH4 relative concentrations, we estimated redox conditions (controlled by the Fe(II)-Fe(III) buffer), a possible equilibrium mineralogical assemblage (made up by epidote-prehnite-quartz-calcite-pyrite-pyrrhotite), deep equilibration temperatures (up to 350°C), and CO2 partial pressures (up to 12 bar) for the deepest, liquid-dominated portions of the reservoir.

Geothermal water-rock equilibria at Palinpinon, Philippines: Insights from major reactive gas constituents.

Gherardi F;Magro G;
2013

Abstract

Eleven producing wells of the Palinpinon geothermal field have been monitored for major reactive gas components over the period 1998-2010. Based on H2O, CO2, H2S, H2, and CH4 relative concentrations, we estimated redox conditions (controlled by the Fe(II)-Fe(III) buffer), a possible equilibrium mineralogical assemblage (made up by epidote-prehnite-quartz-calcite-pyrite-pyrrhotite), deep equilibration temperatures (up to 350°C), and CO2 partial pressures (up to 12 bar) for the deepest, liquid-dominated portions of the reservoir.
2013
Istituto di Geoscienze e Georisorse - IGG - Sede Pisa
gas geochemistry
reactive gases
hydrothermal equilibria
Palinpinon geothermal field
Philippines
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/205704
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