LIAG

Geothermal Information System for Germany

The geothermal information system (GeotIS) provides information and data compilations on deep aquifers in Germany relevant for geothermal exploitation. GeotIS is a public internet based information system and satisfies the demand for a comprehensive, largely scale-independent form of a geothermal atlas which can be continuously updated. GeotIS helps users identify geothermal potentials by visualizing temperature, hydraulic properties and depth levels of relevant stratigraphic units. A sophisticated map interface simplifies the navigation to all areas of interest. An additional component contains a catalogue of all geothermal installations in Germany. The primary objective of this project is to improve the quality of geothermal-plant project-planning and the estimation of the exploration risk for geothermal projects on selectable locations. However, concrete, location-specific analyses still remain the task of local feasibility studies.

: Areas with hydrogeothermal potential. Red: regions with aquifer temperatures exceeding 100 °C required for power generation. Yellow: exceeding 60 °C required for heating systems.

Data sources for GeotIS are:

data of more than 30,000 deep wells; mainly oil and gas wells, but also geothermal, mineral water and mining wells,
hydraulic data (porosity, permeability) from the Hydrocarbon Information System of LBEG and the “Hauptspeicher Bohrungsdaten” for wells drilled in the former GDR and hydraulic test data prepared by our project partners,
temperature information from ca. 10.000 wells in Germany, stored in the Geophysics Information System of LIAG,
stratigraphic data from geothermal maps and geological sections.

These data were combined to produce 3D underground models which are the most important components of GeotIS.

: 3D-Gocad-model of Lias base.

Using GeotIS for research and data retrieval requires no more than a current browser and an internet connection. The user interface provides maps, charts, tables and cross sections for screen display or PDF download.

GeotIS also offers a public catalogue service of geothermal installations in Germany.

: Example of a geological section in GeotIS. Relevant geothermal aquifers are located within the coloured areas; isolines mark the temperature profile.