ausblenden:
Schlagwörter:
Goldschmidt Abstracts 2013
DDC:
550 - Earth sciences
Zusammenfassung:
For 24 months, reservoir sandstone samples from the Stuttgart Formation at the Ketzin pilot CO2 storage site in Germany were exposed to synthetic brine and pure CO2 at 55 bar and 40 °C [1]. Only minor mineralogical changes were directly observed after the experiments, making it difficult to discriminate natural variability of the samples from CO2-induced alterations. During the progress of the experiments fluid samples were taken from the autoclaves in order to track the reactivity of the rock samples as reflected by changes in brine composition. Even these results show high variability and at times qualitatively opposite concentration trends for some dissolved species.
