Fast Evaluation of Caprock Strength Sensitivity to Different CO2 Solutions Using Small Sample Techniques

The Draupne shale is a rock formation functioning as overburden for gas reservoirs in the Norwegian Sea and potentially as caprock for future CO 2 storage locations as well. In this paper, the Draupne shale was exposed to several fluids: CO 2 gas, supercritical CO 2 , CO 2 gas dissolved in brine, supercritical CO 2 dissolved in brine, as well as brine and dry air. The motivation for the exposure tests was to investigate whether injected CO 2 in...