Abstract
Clay and fines migration within sandstone core plugs was investigated to refine permeability estimates for the CO2 EOR project being conducted at the Bell Creek Oil Field. Laboratory tests include porosity, air permeability, brine permeability, and x-ray diffraction and were conducted on reservoir samples at 17.2 MPa and 40.5°C. Results show a decrease in brine permeability when compared to the klinkenberg calculated air permeability. Clay and fines migration has been ruled out through post-brine air permeability testing. Through this study, modifications to the currently used air to brine correction factors have been proposed and used to refine reservoir simulations.
Published Version
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