July 1, 2008 – June 30, 2011

Prof. Dr. Leonhard Ganzer

The BMBF joint project CLEAN (CO2 Largescale EGR in the Altmark Natural Gas Field) was a scientific program accompanying an injection of CO2-based Enhanced Gas Recovery (EGR) projects in Europe's second largest gas field. The research focused on a comprehensive geoscientific analyses, characterization and physiochemical processes of the entire geological system (reservoir rock, fluids and cap rock) that occur during the injection and propagation of CO2. The preparation and implementation required state-of-the-art process relevant geomodels for the CO2 pilot test in the Altmark gas reservoir. In order to establish a realistic geomodel, site-specific rock data is required and was determined at the ITE rock laboratory. Thereby the reservoir core material was investigated in relation to their lithology and their potential interaction with CO2. The simulation study gave some indication of real gas mixing ratios, effective CO2 permeability as well as EGR capacities. A field-wide simulation study was used to identify if it is possible to store CO2 emissions from nearby facilities in an environmentally friendly manner.

• Albrecht, D.; Ganzer, L.; Kohlhepp, B.; Meyer, R.; Pudlo, D.; Reitenbach, V.; Wienand, J. (Eds.) (2011): Investigations on the Suitability of Rotliegend Reservoir Sandstones of the German Altmark Natural Gas Field for EGR Projects.
• Awemo, K. N.; Ganzer, L.; Ionescou, G. F.; Pusch, G.; Reitenbach, V. (Eds.) (2009): Data Provision and Process Simulation of the CO2 Injection Pilot Test for the Altmark Natural Gas Field.
• Awemo, K. N.; Ganzer, L.; Singhe, A. T. (Eds.) (2011): Reservoir Simulation of CO₂ Injection and Enhanced Gas Recovery Effects for the Altmark-Altensalzwedel Gas Reservoir.
• Kühn, M.; Awemo, K. N.; Singhe, A. T.; Ganzer, L.; Voigtländer, G.; Stecken, L. et al. (2011): Reservoir Simulation and Monitoring Study of CO2 Injection and EGR Processes for the Altensalzwedel-Altmark Gas Field: The Permanent Geological Storage of CO2 in Germany—Current Research Results and. In Special Issue Geotechnologies 2011 Geotechnologies Science Report No. 19.
• Lucia, M. de; Bauer, S.; Beyer, C.; Kühn, M.; Nowak, T.; Pudlo, D. et al. (2012): Modeling CO2-induced fluid-rock interactions in the Altensalzwedel gas reservoir. Part I – From experimental data to a reference geochemical model. In Environmental Earth Science.
• Pudlo, D.; Albrecht, D.; Ganzer, L.; Gaupp, R.; Kohlhepp, B.; Meyer, R. et al. (Eds.) (2010a): Petrophysical, Facies, and Mineralogical-Geochemical Investigations of Rotliegend Sandstones from the Altmark Natural Gas Field in Central Germany.
• Pudlo, D.; Albrecht, D.; Ganzer, L.; Gaupp, R.; Kohlhepp, B.; Meyer, R. et al. (2010b): Petrophysical, Facies, and Mineralogical-Geochemical Investigations of Rotliegend Sandstones from the Altmark Natural Gas Field in Central Germany. In Energy Procedia 4, pp. 4648–4655.
• Pudlo, D.; Reitenbach, V.; Albrecht, D.; Ganzer, L.; Gernert, U.; Wienand, J. et al. (2012): The impact of diagenetic fluid-rock reactions on Rotliegend sandstone composition and petrophysical properties (Altmark area, central Germany). In Environmental Earth Science.
• Singhe, A. T.; Ganzer, L. (Eds.) (2010): On the Ability of Cubic Equations of State to Estimate CO2 Density. Celle.
• Singhe, A. T.; Ganzer, L.; Awemo, K. N. (Eds.) (2011): Major Considerations in Wellbore Modeling of CO2 Injection in Depleted Gas Reservoirs and Their Implications for the CLEAN Project.