Changes of Deep Saline Aquifer Samples Due to Long Term Exposure to SpCO2

Based on selection and also on availability of suitable core samples, reservoir rocks from 3 geological structures were selected for the experiments. The samples were exposed to spCO2 under 7,5 MPa and 35C for 3 month. Long term static experiment revelead that selected rock samples kept their properties regardless spCO2 exposure. Such an information would be important studying the suitability of reservoir structure for CO2 exposure as mineral changes are the most important parameter for potential injectability and storativity evaluation.