Main goal

 Carboniferous sandstone - potential reservoir rock for CO2 storage. Credit: Richard Lojka/CGS

Carbon dioxide (CO2) capture and geological storage (CCS) is - together with energy savings, increase of energy efficiency and use of renewables - one of the most important options of decreasing emissions of CO2 - the substantial greenhouse gas. While CO2 capture technologies are subject of international research & development (R&D), and can be easily transferred from country to country, geological storage of CO2 is much more country and site specific, requiring more local involvement in a variety of activities ranging from research to interfacing with national agencies and the public to planning before moving to execution.

The project aims to continue the research on CO2 geological storage potential in the Czech Republic that has been carried out by Czech Geological Survey (CGS) since 2003, especially within EU funded international projects CASTOR and EU GeoCapacity. Until now, the basic inventory of suitable geological structures has been elaborated, as well as initial case studies for selected geological formations. The achieved results are, however, insufficient to apply the existing knowledge towards narrowing down potential carbon dioxide storage sites and moving closer to pilot testing them for their ability to safely store CO2 and therefore further research work is urgently needed to reach to this technical level.

Using the methodology and techniques described below, the project represents an important step on the route towards implementation of geological storage of CO2 in the Czech Republic, i.e. towards a pilot or demonstration CCS project. Focusing on subject matters such as mineralogy and geochemistry of reservoir rocks and seals, integrated modeling of basin structures and research on CO2 storage potential in hydrocarbon fields with optional CO2-enhanced oil recovery (EOR), the project will bring a significant increase of knowledge of potential CO2 storage sites and improved specification of their storage capacities. Knowledge transfer of the Norwegian partner – International Research Institute of Stavanger - and common bilateral activities are essential for this work.

Overall Objective

The main objective of the project is to significantly increase the level of knowledge of the most promising structures potentially suitable for geological storage of CO2 in Czechia – i.e. the deep saline aquifers of the Central Bohemian Permian-Carboniferous basins and (semi‑)depleted hydrocarbon fields of eastern Moravia, and to re-assess more accurately their CO2 storage potential.

This will be achieved by fulfilling the partial project objectives represented by the project individual activities, sub-activities and tasks. The main project objectives are to:

  • increase the knowledge of petrophysical, lithological and geo-mechanical properties of both reservoir and seal rocks by laboratory analyses; knowledge of these properties is essential for storage capacity assessments and storage formation modeling; perform a multi-criterial analysis of three partial Permian-Carboniferous basins (Zatec, Roudnice and Mnichovo Hradiste) and select the most promising one where further research will be focused on;
  • update the initial volumetric model of the selected basin into a real basin model by introducing new measured data, sequence-stratigraphic analysis, etc.;
  • build an initial reservoir model of the selected storage site and perform the very first simulation of potential CO2 injection and storage;
  • disseminate the results of the project by presentations at international scientific events, by publications in scientific journals and by organising an open workshop at the end of the project.