Publications

2020

Development of thermo-reporting nanoparticles for accurate sensing of geothermal reservoir conditions.
Rudolph, B.; Berson, J.; Held, S.; Nitschke, F.; Wenzel, F.; Kohl, T.; Schimmel, T.
2020. Scientific reports, 10 (1), Article: 11422. doi:10.1038/s41598-020-68122-y
Numerische und experimentelle Untersuchungen der Hydraulik auf gescherten rauen Klüften bei hohen Geothermie-typischen Fließraten.
Nitschke, F.; Egert, R.; Marchand, S.; Kohl, T.
2020, November 13. Der digital Geothermiekongress (DGK 2020), Essen, Germany, November 9–13, 2020
Nachhaltige Rohstoffgewinnung aus Thermalwässern: das BrineMine Projekt.
Goldberg, V.; Held, S.; Winter, D.; Spitzmüller, L.; Nitschke, F.; Morata, D.; Kohl, T.; Budach, I.; Koschikowski, J.
2020, November 12. Der digital Geothermiekongress (DGK 2020), Essen, Germany, November 9–13, 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
Statistische Evaluierung von nichtlinearen Effekten auf rauen und gescherten Kluftoberflächen.
Egert, R.; Nitschke, F.; Gholami Korzani, M.
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
Flow regime in self-affine fractures inferred from field observations and statistical analysis.
Kohl, T.; Egert, R.; Nitschke, F.
2020, October 27. GSA 2020 Connects Online (2020), Online, October 26–30, 2020. doi:10.1130/abs/2020AM-358827
Stochastic evaluation of the flow regime on rough and sheared fractures.
Egert, R.; Nitschke, F.; Gholami Korzani, M.; Kohl, T.
2020, October 7. 8th European Geothermal Workshop (EGW 2020), Online, October 7–8, 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
A Fully-Coupled Implicit Transient Two-Phase Wellbore Simulator.
Nitschke, F.; Gholami Korzani, M.; Held, S.; Kohl, T.
2020. World Geothermal Congress 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
A Stochastic Study of Flow Anisotropy and Channelling in Open Rough Fractures.
Marchand, S.; Mersch, O.; Selzer, M.; Nitschke, F.; Schoenball, M.; Schmittbuhl, J.; Nestler, B.; Kohl, T.
2020. Rock mechanics and rock engineering, 53, 233–249. doi:10.1007/s00603-019-01907-4

2019

Temperature log simulations in high-enthalpy boreholes.
Wang, J.; Nitschke, F.; Gholami Korzani, M.; Kohl, T.
2019. Geothermal Energy, 7 (1), 32. doi:10.1186/s40517-019-0149-0
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
The Development of a Fully Coupled Wellbore-Reservoir Simulator for Geothermal Application.
Gholami Korzani, M.; Held, S.; Nitschke, F.; Kohl, T.
2019, November. 1st DEEPEGS-Symposium “How to enhance deep geothermal well productivity?” (2019), Orléans, France, November 6–7, 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
Fully Transient Geothermal Wellbore Simulator (MOSKITO).
Gholami Korzani, M.; Held, S.; Nitschke, F.; Kohl, T.
2019, October. 7th European Geothermal Workshop (EGW 2019), Karlsruhe, Germany, October 9–10, 2019
Linear vs. Nonlinear flow laws in sheared and rough self-affine fractures.
Egert, R.; Nitschke, F.; Gholami Korzani, M.; Kohl, T.
2019, October. 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
Calculation of the CO₂-solubility in thermal waters in the context of geothermal utilization: CO₂-bubble point analysis in thermal waters of the Büyük Menderes Graben.
Goldberg, V.; Held, S.; Siefert, D.; Nitschke, F.; Kölbel, T.
2019. @SPEgermany, 29, 18–22
Estimating the Static Formation Temperature Using the Drilling and Logging Data of the RN-15/IDDP-2 Well in Iceland [in press].
Wang, J.; Nitschke, F.; Gaucher, E.; Kohl, T.
2019. DEEPEGS Symposium: How to enhance deep geothermal well productivity? - Orléans, France, 6-7 November 2019
The Development of a Fully Coupled Wellbore-Reservoir Simulator for Geothermal Application.
Gholami Korzani, M.; Nitschke, F.; Held, S.; Kohl, T.
2019. Transactions, 43, 927–936

2018

Numerical quantification of Scaling Processes in Boreholes -Case study: Well Groß Buchholz Gt1 (GeneSys-Project).
Nitschke, F.; Held, S.; Gholami Korzani, M.; Wang, J.; Himmelsbach, T.; Kohl, T.
2018, November 27. Der Geothermiekongress (DGK 2018), Essen, Germany, November 27–29, 2018
Calculation of CO2 solubility in thermal waters in the context of geothermal utilization.
Goldberg, V.; Held, S.; Nitschke, F.; Siefert, D.; Kölbel, T.; Kohl, T.
2018, November. Student Technical Conference (STC 2018), Freiberg, Germany, November 8–9, 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
Temperature analysis of the well RN15/IDDP2 in Reykjanes under long-term flow variations.
Wang, J.; Gholami Korzani, M.; Nitschke, F.; Gaucher, E.; Kohl, T.
2018, October 10. 6th European Geothermal Workshop (EGW 2018), Strasbourg, France, October 10–11, 2018
Geochemical characterization of the geothermal system at Villarrica volcano, Southern Chile; Part 1: Impacts of lithology on the geothermal reservoir.
Held, S.; Schill, E.; Schneider, J.; Nitschke, F.; Morata, D.; Neumann, T.; Kohl, T.
2018. Geothermics, 74, 226–239. doi:10.1016/j.geothermics.2018.03.004
Geochemical characterization of the Villarrica geothermal system, Southern Chile, part II : Site-specific re-evaluation of SiO₂ and Na-K solute geothermometers.
Nitschke, F.; Held, S.; Neumann, T.; Kohl, T.
2018. Geothermics, 74, 217–225. doi:10.1016/j.geothermics.2018.03.006
Anisotropy and flow channeling with shearing in rough self-affine single fractures.
Marchand, S.; Selzer, M.; Mersch, O.; Schoenball, M.; Nitschke, F.; Schmittbuhl, J.; Nestler, B.; Gaucher, E.; Kohl, T.
2018. 6th European Geothermal Workshop (EGW 2018), Strasbourg, France, October 10–11, 2018
Hydraulic anisotropy in simulated sheared fractures: a statistical analysis with comparison of aperture determination methods.
Marchand, S.; Selzer, M.; Mersch, O.; Schoenball, M.; Nitschke, F.; Schmittbuhl, J.; Nestler, B.; Gaucher, E.; Kohl, T.
2018. EGU General Assembly (2018), Vienna, Austria, April 8–13, 2018
Numerical and Experimental Characterization of Dissolution and Precipitation Processes in Deep Geothermal Reservoirs. PhD dissertation.
Nitschke, F.
2018. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000079826

2017

Advances in geochemical exploration - From dilution determination to improvements of geothermometers;.
Held, S.; Nitschke, F.; Schneider, J.; Kohl, T.
2017, September 13. Der Geothermiekongress (DGK 2017), Munich, Germany, September 12–14, 2017
Advanced geochemical techniques to characterize geothermal fluid circulation patterns.
Held, S.; Nitschke, F.; Schill, E.; Kohl, T.; Neumann, T.
2017, August 15. Goldschmidt Conference (2017), Paris, France, August 13–18, 2017
In-situ Temperature Determination at the Villarrica Geothermal System, Southern Chile : Implications from Laboratory Experiments for Geothermometry.
Nitschke, F.; Held, S.; Villalon, I.; Neumann, T.; Kohl, T.
2017. Proceedings of the 42nd Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, 13th - 15th February 2017, 1–8
Effect of flow and physical parameters on the mineral deposition of geothermal wellbores: WellboreKit development.
Nusiaputra, Y.; Dimier, A. D.; Nitschke, F. N.; Gaucher, E. G.; Kohl, T. K.
2017. 79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter; Paris; France; 12 June 2017 through 15 June 2017, EAGE (European Association of Geoscientists & Engineers). doi:10.3997/2214-4609.201701326
Assessment of performance and parameter sensitivity of multicomponent geothermometry applied to a medium enthalpy geothermal system.
Nitschke, F.; Held, S.; Villalon, I.; Neumann, T.; Kohl, T.
2017. Geothermal Energy, 5 (1), 12. doi:10.1186/s40517-017-0070-3
In-situ Temperature Determination at the Villarrica Geothermal System, Southern Chile : Implications from Laboratory Experiments for Geothermometry.
Nitschke, F.; Held, S.; Villalon, I.; Neumann, T.; Kohl, T.
2017. 42nd Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, 13-15 February 2017
Hydrochemistry and genesis of the hot spring fluids of Villarrica Geothermal system in the Andes of Southern Chile.
Held, S.; Nitschke, F.; Schill, E.; Eiche, E.; Morata, D.; Kohl, T.
2017. 41st Geothermal Research Council Annual Meeting (GRC) & GEA GeoExpo+ 2017, Salt Lake City, Utah, USA, 1st - 4th October 2017
Integrated Research as Key to the Development of a Sustainable Geothermal Energy Technology.
Meller, C.; Bremer, J.; Ankit, K.; Baur, S.; Bergfeldt, T.; Blum, P.; Canic, T.; Eiche, E.; Gaucher, E.; Hagenmeyer, V.; Heberling, F.; Held, S.; Herfurth, S.; Isele, J.; Kling, T.; Kuhn, D.; Mayer, D.; Müller, B.; Nestler, B.; Neumann, T.; Nitschke, F.; Nothstein, A.; Nusiaputra, Y.; Orywall, P.; Peters, M.; Sahara, D.; Schäfer, T.; Schill, E.; Schilling, F.; Schröder, E.; Selzer, M.; Stoll, M.; Wiemer, H.-J.; Wolf, S.; Zimmermann, M.; Kohl, T.
2017. Energy technology, 5 (7), 965–1006. doi:10.1002/ente.201600579
THC simulation of halite scaling in deep geothermal single well production.
Nitschke, F.; Held, S.; Himmelsbach, T.; Kohl, T.
2017. Geothermics, 65, 234–243. doi:10.1016/j.geothermics.2016.09.009

2016

Geochemical Reservoir Exploration and Temperature Determination at the Mt. Villarrica Geothermal System, Chile.
Nitschke, F.; Held, S.; Villalon, I.; Mundhenk, N.; Kohl, T.; Neumann, T.
2016. European Geothermal Congress (EGC 2016), Strasbourg, France, September 19–26, 2016

2015

Lithological controls influencing the geochemistry of geothermal systems in the vicinity of Villarrica volcano : an experimental approach.
Villalon, I.; Nitschke, F.; Held, S.; Morata, D.
2015. XIV Chilean Geological Congress, Chile 2015, La Serena, Chile, 4th - 8th October 2015
The application of THC Code TOUGHREACT-Pitzer on Failure Conditions of Geothermal project GeneSys.
Nitschke, F.; Held, S.; Himmelsbach, T.; Kohl, T.
2015. 4th European Geothermal Workshop (EGW 2015), Strasbourg, France, October 19–20, 2015
Reactivity of Chilean Reservoir Rocks and the Use of Geochemical Tools for Reservoir Characterization.
Nitschke, F.; Held, S.; Mundhenk, N.; Villalon, I.; Kohl, T.; Neumann, T.
2015. 4th European Geothermal Workshop (EGW 2015), Strasbourg, France, October 19–20, 2015

2014

Formation of alternating layered Ba-Sr-sulfate and Pb-sulfide scaling in the geothermal plant of Soultz-sous-Forêts.
Nitschke, F.; Scheiber, J.; Kramar, U.; Neumann, T.
2014. Neues Jahrbuch für Mineralogie / Abhandlungen, 191 (2), 145–156. doi:10.1127/0077-7757/2014/0253

2013

Formation Mechanisms of Sulfate and Sulfide Scalings in the Geothermal Power Plant of Soultz-sous-Forêts : Insights from Sulfur Isotope Analyses.
Nitschke, F.; Scheiber, J.; Neumann, T.; Kramar, U.
2013. Joint Annual Meeting DMG and GV : Sediment. Geofluids: Lubricants of the Dynamic Earth, Tübingen, Germany, 16th - 20th September 2013
Geochemisch-mineralogische Charakterisierung der Scalings in der Geothermieanlage Soultz-sous-Forêts.
Nitschke, F.; Scheiber, J.; Neumann, T.
2013. Chancen der Energiewende : wissenschaftliche Beiträge des KIT zur 1. Jahrestagung des KIT-Zentrums Energie, 19.06.2012. Hrsg.: W. Breh, 113–118, KIT Scientific Publishing