1. Experimental study on drilling core samples from the Pannonian Basin to model reaction occurring at CO2 capture and storage
Berta Márton1, Lévai György2, Király Csilla1*
1 Lithosphere Fluid Research Lab, Department of Petrology and Geochemistry, Eötvös University, Budapest
2 Budapest University of Technology and Economics (BME)
Meeting of Young Geoscientists, Győr, march, 2011

2. Introduction CO2 capture and storage (CCS) technology
CCS potential of Hungary
Experimental work
Results

3. What is the CCS?
CO2 capture and storage (CCS) from an industrial gas stream (eg. smoke) using underground reservoires.
(Capture, Transport, Storage, Monitoring)
Benson & Cole, 2008

4. The studied geological formations
Lower-Pannonian: 7,2 M – 5,3 M years
Upper-Pannonian: 5,3 M – 1,8 M years
Evolution of the Pannonian Basin:
Sediments of rivers:
- delta plain and delta slope
is clayey
(fine grained sediment)
- delta front and deep zone is sandy
(coarse grained turbidite)
Juhász, 1992
Delta plain
Delta front
Deep basin facies = Szolnok Formation
Delta slope facies = Algyő Formation

5. The studied geological formations
aleurolite
Based on Kummer I., 2003
sandstone
Based on Magyar Bányászati és Földtani Hivatal, MOL Nyrt. Adattár, and Juhász Györgyi (personal communcation), 2009

6. Mineralogical composition of a sandstone from the Szolnok Formation
Study of samples
Mineralogical composition of a sandstone from the Szolnok Formation

7. Experiments with the ’vessel’
Potential reservoir rocks
Test on sandstones and separate minerals
High pressure- temperature vessel on realistic p, T conditions ( bar; °C)
Realistic pore water, brine
Supercritical carbon dioxid space
Different run periods
’ Vessel’ in BME Department Environmental and Chemical Engineering

8. Lab measurement Rock sample Before the experiment After the experiment
Scanning electron microscope (SEM) secunder electron images:
Rock sample
quartz
calcite
feldspar
feldspar
calcite
quartz
Before the experiment
After the experiment

9. Calcite 1 Scanning electron microscope (SEM) secunder electron images:
Before the experiment
After the experiment
: solvatation forms following crystal borders

10. Solution and precipitation
Calcite 2
Surface under liquid
Surface out of liquid
Solution and precipitation

11. ICP-MS results of solution (whole rock)
Starting solution
Solution before experiment
Solution A after experiment
Solution B after experiment

12. Experiments with ‘reactor’
Separate tests of minerals (calcite)
Grain size about mm
High p, T reactor on realistic p, T conditions ( bar; °C)
Use of 5 m/m% NaCl solution
Sampling on constant p, T
’reactor’ in BME Department Environmental and Chemical Engineering

13. Needle cshaped rystals under \solution
Calcite from ’reactor’
Scanning electron microscope (SEM) secunder electron images:
Needle cshaped rystals under \solution
Surface above solution
Surface under solution for awhile
Surface under solution

14. ICP-MS results of solutions on calcite experiment
4 day
1 day
4 hour
1 hour

15. Summary Complex rock – fluid interactions
Less complex mineral – rock interactions
Due to these results, Szolnok Formation is a potential reservoir for CO2 storage (however further tests are needed with the cap rock)

16. Thanks for your attention!.
We gratefully thank Csaba Szabó, PhD, dr. György Falus, and dr. Edit Székely for their supervision during our work. We wish to thank dr. Györgyi Juhász for her help in the geological background, prof. Gyula Záray for the ICP-MS mearurements and for Zsolt Bendő for the SEM tests.
We thank for the LRG Youngsters Group for the athmosphere necessary for working, and Ábel Szabó for the help provided during the preparation of thin sections.

17. ICP-MS
Rock fluidum