Petrophysical and Mineralogical Research on the Influence of CO 2 Injection on Mesozoic Reservoir and Caprocks from the Polish Lowlands

Abstract

Special equipment, simulating formation conditions, was designed to study interactions between injected CO2, rocks and brines. The investigations were carried out on samples collected from reservoir and caprocks of the Pagórki (Cretaceous deposits) and Brześć Kujawski (Jurassic deposits) boreholes. Mineralogical and petrographic investigations were carried out on the samples before and after the experiment to determine changes occurring as a result of the processes. The investigations proved that these rocks show good quality reservoir and sealing properties. The experiment did not significantly worsen the reservoir properties of the rocks. © 2011, IFP Energies nouvelle.