09 Oct 2020
| 09 Oct 2020
Digital rock physics approach to simulate hydraulic effects of anhydrite cement in Bentheim sandstone
GFZ German Research Centre for Geosciences, Fluid Systems Modelling,
Potsdam, 14473, Germany
Institute of Geosciences, University of Potsdam, Potsdam, 14476,
Germany
Thomas Kempka
GFZ German Research Centre for Geosciences, Fluid Systems Modelling,
Potsdam, 14473, Germany
Institute of Geosciences, University of Potsdam, Potsdam, 14476,
Germany
Michael Kühn
GFZ German Research Centre for Geosciences, Fluid Systems Modelling,
Potsdam, 14473, Germany
Institute of Geosciences, University of Potsdam, Potsdam, 14476,
Germany
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Melissa Präg, Ivy Becker, Christoph Hilgers, Thomas R. Walter, and Michael Kühn
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Michael Kühn, Natalie C. Nakaten, and Thomas Kempka
Adv. Geosci., 54, 173–178, https://doi.org/10.5194/adgeo-54-173-2020, https://doi.org/10.5194/adgeo-54-173-2020, 2020
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Energy supply in Germany is subject to a profound change. The present paper addresses the German potential of storing excess energy from renewable power sources in the geological subsurface. Wind and solar electricity can be transformed into hydrogen, and with carbon dioxide subsequently into methane. The current potential for combined subsurface storage of methane and carbon dioxide allows to store far more than required to date and is estimated to provide the entire coverage in 2050.
Thomas Kempka
Adv. Geosci., 54, 67–77, https://doi.org/10.5194/adgeo-54-67-2020, https://doi.org/10.5194/adgeo-54-67-2020, 2020
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The TRANsport Simulation Environment (TRANSE) has been developed to improve the flexibility for coupling chemical libraries with fluid flow and the transport of heat and chemical species. The Python-based implementation of TRANSE enables users not experienced in low-level programming languages (e.g., C, C++ or FORTRAN) to undertake required code modifications and integrate chemical modules as required. TRANSE has been successfully verified against benchmarks on density-driven fluid flow.
Sonja Martens, Maren Brehme, Viktor J. Bruckman, Christopher Juhlin, Johannes Miocic, Antonio P. Rinaldi, and Michael Kühn
Adv. Geosci., 54, 1–5, https://doi.org/10.5194/adgeo-54-1-2020, https://doi.org/10.5194/adgeo-54-1-2020, 2020
Márk Somogyvári, Michael Kühn, and Sebastian Reich
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Sonja Martens, Christopher Juhlin, Viktor J. Bruckman, Gregor Giebel, Thomas Nagel, Antonio P. Rinaldi, and Michael Kühn
Adv. Geosci., 49, 31–35, https://doi.org/10.5194/adgeo-49-31-2019, https://doi.org/10.5194/adgeo-49-31-2019, 2019
Michael Kühn and Tim Schöne
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The water level of the Waiwera geothermal reservoir increased in the hours and days after the Kaikoura earthquake on 14 November 2016. We determined in a continuous time series consisting of monthly means of water level data and pumping rates starting in 1986 if events above a certain strength alter groundwater dynamics at Waiwera. A clear correlation cannot be proven but none of the recorded earthquakes led to such a high energy density in Waiwera as the Kaikoura event did.
Sonja Martens, Christopher Juhlin, Viktor J. Bruckman, Kristen Mitchell, Luke Griffiths, and Michael Kühn
Adv. Geosci., 45, 163–166, https://doi.org/10.5194/adgeo-45-163-2018, https://doi.org/10.5194/adgeo-45-163-2018, 2018
Elena Tillner, Maria Langer, Thomas Kempka, and Michael Kühn
Hydrol. Earth Syst. Sci., 20, 1049–1067, https://doi.org/10.5194/hess-20-1049-2016, https://doi.org/10.5194/hess-20-1049-2016, 2016
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The degree of shallow aquifer salinisation triggered by fluid injection into deeper brine-bearing aquifers and brine upward migration through hydraulically conductive faults strongly depends on the regional depth of the freshwater-saltwater boundary, since displaced brines originate only from the upper fault damage zones in the study area. The highest local salinity increase in shallow aquifers occurs in case of closed model boundaries and low fault damage zone volumes.
M. De Lucia, T. Kempka, and M. Kühn
Geosci. Model Dev., 8, 279–294, https://doi.org/10.5194/gmd-8-279-2015, https://doi.org/10.5194/gmd-8-279-2015, 2015
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