Held, Sebastian

Kohl, Thomas

Nitschke, Fabian

Ystroem, Lars Helge

English

KITopen

KIT – The Research University in the Helmholtz AssociationMulT_predictA multicomponent geothermometer for precise reservoir temperature estimationL. H. Ystroem, F. Nitschke, S. Held, T. KohlConclusion and outlookMulT_predict can be applied on natural spring water of meteoricorigin as well as on saline fluidsThe estimated reservoir temperature matches the measuredtemperature with an uncertainty of ±5%Future implementation of more chemical reaction models toreconstructed the geothermal fluid at reservoir conditionsMotivationCreate an economical exploration tool to precisely estimatereservoir temperatures from fluid samplesStandard quantitative water analysis based multicomponentgeothermometrySensitivity analyses for back calculation on in-situ systemparameters and correction from secondary processesSaturation indices as geothermometers Workflow of the validation Temperature estimationComparison of three stages with the measured temperature Sensitivity analysis MulT_predictConstraining the mineral phases to a reservoir rock specific mineral set for the sensitivity analysesFlowchart of the validationImprovement of the estimated reservoir temperature by minimization of the boxplot spreadlars.ystroem@kit.eduTemperature estimation can be deduced from the geochemical equilibrium between mineral phases and the reservoir rockTemperature dependent saturation indexfunctions serve as geothermometersEquilibrium of the mineral phasesused for the temperature estimation of the reservoirExample of the sensitivity analysisfor the best fit pH valueVariation of the value yield of sensitive geochemical parameters:pH-value, aluminium concentration and reduction potentialInstitute of Applied GeosciencesDivision of Geothermicsagw.kit.eduPublication of major contributionNitschke, F.; Held, S.; Villalon, I.; Neumann, T.; Kohl, T. (2017): Assessment of performance and parameter sensitivity of multicomponent geothermometry applied to a medium enthalpy geothermal system. In: Geothermal Energy 5 (1)Validation of the method by comparison of both estimated reservoir temperatures with measured dataBasic assumption: chemical equilibrium of fluid and reservoir rock mineralsFunctionality of MulT-predict

MulT_predict - A multicomponent geothermometer for precise reservoir temperature estimation

https://publikationen.bibliothek.kit.edu/1000100781/50969722

MulT_predict - A multicomponent geothermometer for precise reservoir temperature estimation

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