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Environmental Earth Sciences

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01.12.2013 | Special Issue

Thermal–hydraulic measurements and modelling of the brine circuit in a geothermal well

verfasst von: Henning Francke, Matthias Kraume, Ali Saadat

Erschienen in: Environmental Earth Sciences | Ausgabe 8/2013

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Abstract

Wellhead temperature and pressure are critical parameters of a geothermal well. Their prediction requires knowledge of the geofluid properties and detailed thermal modelling of the well and formation. High salinity and gas content complicate the task. This article presents a comprehensive thermal–hydraulic wellbore model, which is parameterized and validated with data from the Gross Schoenebeck site, and used for a long-term prognosis. Geofluid properties are calculated based on the specific gas and salt contents by determining the vapour–liquid equilibrium.

Vorheriger Artikel Thermal, mechanical and chemical influences on the performance of optical fibres for distributed temperature sensing in a hot geothermal well

Nächster Artikel Partial derivatives of thermodynamic state properties for dynamic simulation

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validity density NaCl: T = 273…573 K, p = 1…1000 bar and b = 0…6 mol/kg.

validity density KCl: T = 273…543 K, p = 1…500 bar and b = 0…4.5 mol/kg.

validity density CaCl₂: T = 273…523 K, p = 1…600 bar and b = 0…6 mol/kg.

validity solubility N₂: T = 273…400 K, p = 1…600 bar and b = 0…6 mol/kg.

validity solubility CO₂: T = 273…533 K, p = 0…2000 bar and b = 0…4.5 mol/kg.

validity solubility CH₄: T = 273…523 K, p = 1…2000 bar and b = 0…6 mol/kg.

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Titel: Thermal–hydraulic measurements and modelling of the brine circuit in a geothermal well
verfasst von: Henning Francke
Matthias Kraume
Ali Saadat
Publikationsdatum: 01.12.2013
Verlag: Springer Berlin Heidelberg
Erschienen in: Environmental Earth Sciences / Ausgabe 8/2013
Print ISSN: 1866-6280
Elektronische ISSN: 1866-6299
DOI: https://doi.org/10.1007/s12665-013-2612-8

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