Area of work

Research topic: Geochemical exploration and geothermometry

Research activities

Analysis of fluid chemistry
Implementation of a multicomponent geothermometer system
Development of the in-house tool „MulT_predict“

Referenced publications

2023

AnnRG - An artificial neural network solute geothermometer
Ystroem, L. H.; Vollmer, M.; Kohl, T.; Nitschke, F.
2023. Applied Computing and Geosciences, 20, Art.-Nr.: 100144. doi:10.1016/j.acags.2023.100144

2022

MulT_predict - An optimised comprehensive multicomponent geothermometer
Ystroem, L. H.; Nitschke, F.; Kohl, T.
2022. Geothermics, 105, Art.-Nr.: 102548. doi:10.1016/j.geothermics.2022.102548

2020

A multicomponent geothermometer for high-temperature basalt settings
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2020. Geothermal Energy, 8 (1), Art. Nr.: 2. doi:10.1186/s40517-020-0158-z

An Integrated Sensitivity Analysis for the Basalt Specific Multicomponent Geothermometer for High Temperature Settings
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2020. World Geothermal Congress 2020

Conference contributions

2023

AnnRG
Ystroem, L. H.; Vollmer, M.; Nitschke, F.
2023, November 15

MALEG - Maschinelles Lernen zur Verbesserung der Geothermischen Energienutzung
Ystroem, L. H.; Trumpp, M.
2023, October 18. Der Geothermiekongress (DGK 2023), Essen, Germany, October 17–19, 2023

Geothermometer temperature predictions for DeepStor
Ystroem, L. H.; Nitschke, F.; Kohl, T.
2023, May 10. 10th Energy Center Annual Meeting (2023), Karlsruhe, Germany, May 10, 2023

Deep learning and geochemical modelling as tools for solute geothermometry
Ystroem, L. H.; Vollmer, M.; Nitschke, F.; Kohl, T.
2023. European Geothermal Congress 2022. Proceedings, European Geothermal Energy Council (EGEC)

Geochemical Constraints on the Operations of High Temperature Aquifer Energy Storage (HT-ATES) in Abandoned Oil Reservoirs
Nitschke, F.; Ystroem, L.; Bauer, F.; Kohl, T.
2023. 48th Workshop on Geothermal Reservoir Engineering, Standfort University

Solute Geothermometry - Applications and Development
Ystroem, L. H.; Vollmer, M.; Nitschke, F.; Kohl, T.
2023, January 13. Webinar: "Focus on Geothermal (Webinar) : Energy for the Weekend" (2023), Online, January 13, 2023

2022

Deep learning and geochemical modelling as tools for solute geothermometry
Ystroem, L. H.; Vollmer, M.; Nitschke, F.; Kohl, T.
2022, October 19. European Geothermal Congress (EGC 2022), Berlin, Germany, October 17–21, 2022

MulT_predict
Ystroem, L. H.; Nitschke, F.
2022, August 18

2021

Reservoirtemperaturbestimmung mittels künstlicher neuronaler Netze (KNN)
Ystroem, L.; Vollmer, M.; Nitschke, F.; Kohl, T.
2021, November 30. Der Geothermiekongress (DGK 2021), Essen, Germany, November 30–December 2, 2021

An artificial neural network (ANN) as solute geothermometer
Ystroem, L.; Vollmer, M.; Nitschke, F.; Kohl, T.
2021, September 24. 9th European Geothermal Workshop (EGW 2021), Karlsruhe, Germany, September 23–24, 2021

An Integrated Sensitivity Analysis for Multicomponent Geothermometer for High Temperature Settings
Ystroem, L. H.; Nitschke, F.; Kohl, T.
2021, May 12. World Geothermal Congress (WGC 2021), Reykjavik, Iceland, May 21–26, 2021

Optimised multicomponent geothermometer MulT_predict
Ystroem, L. H.; Nitschke, F.; Kohl, T.
2021, February 15. 12th European Geothermal PhD Days (EGPD 2021), Paris, France, February 15–16, 2021

2020

Zeitliche und tiefenabhängige Effekte auf die Fluidchemie - Untersuchung granitischer Reservoire im Oberrheingraben mittels Multikomponentengeothermometrie
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2020, November 11. Der digital Geothermiekongress (DGK 2020), Essen, Germany, November 9–13, 2020

MulT_predict - An optimised multicomponent geothermometer
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2020, November 4. Student Technical Congress - German Section (STC 2020), Online, November 4–6, 2020

MulT_predict: Ein numerisches Multikomponentengeothermometer zur präzisen Bestimmung der Reservoirtemperatur
Ystroem, L.; Nitschke, F.; Held, S.; Kohl, T.
2020. Geothermische Energie, (95), 20–23

2019

MulT_predict - Entwicklung & Validierung eines Tools zur Reservoirtemperaturabschätzung basierend auf Multikomponentengeothermometrie
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2019, November 21. Der Geothermiekongress (DGK 2019), Munich, Germany, November 19–21, 2019

MulT_predict - A Multicomponent Geothermometer optimized by Sensitivity Analysis
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2019, October 9. 7th European Geothermal Workshop (EGW 2019), Karlsruhe, Germany, October 9–10, 2019

MulT_predict - A multicomponent geothermometer with integrated sensitivity analyses
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2019, October 9. 7th European Geothermal Workshop (EGW 2019), Karlsruhe, Germany, October 9–10, 2019

MulT_predict - A multicomponent geothermometer for precise reservoir temperature estimation
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2019, July 4. 8th Annual Conference of the KIT Energy Center (2019), Karlsruhe, Germany, July 4, 2019

2018

Validation of multicomponent geothermometer with sensitivity analysis in basaltic geothermal setting
Ystroem, L. H.; Nitschke, F.; Held, S.; Kohl, T.
2018, October 10. 6th European Geothermal Workshop (EGW 2018), Strasbourg, France, October 10–11, 2018