Abstract
The fracture porosity of the continental crust is normally saturated with an aqueous fluid. This fluid is used to transfer thermal energy from the hot depth to the cold surface for various uses. The chemical composition of this natural heat transfer fluid depends on the predominant (reactive) rock type of the thermal reservoir and its changes along the circulation pathway. Most deep fluids are saline brines with the major components NaCl and CaCl2. Typical deep fluids contain between 1 and 4 molar NaCl equivalents corresponding to a total of dissolved solids (TDS) in the range of 60–270 g/L.
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© 2013 Springer-Verlag Berlin Heidelberg
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Stober, I., Bucher, K. (2013). The Chemical Composition of Deep Geothermal Waters and Its Consequences for Planning and Operating a Geothermal Power Plant. In: Geothermal Energy. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13352-7_14
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DOI: https://doi.org/10.1007/978-3-642-13352-7_14
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