The Permeability of Rock Salts

by Nelson Cole

At the University of Texas they found Rock Salts to be more permeable than originally expected. It was known that salt generally blocks fluid at a shallow depth. This feature of salt allows reservoirs to form. However, scientist had contemplated that salt may be permeable at a greater depth. When setting out to conduct experiments University of Texas, professors originally thought that Rock Salt would be used as a hydrocarbon seal for the oil industry. Since salt generally blocks fluid at a shallow depth and allows it to flow at a greater depth. It was quickly confirmed that salt becomes permeable at a greater depth. The real surprise came in that the fluids were sometimes able to flow through the salt at a shallow depth. The findings could have important implications for nuclear waste storage. Previous work on the permeability of salts has focused on the cracks formed by the nuclear waste itself. The findings from the study show that undisturbed rock salt can be permeable as well and it is permeable because of deformation. Continue reading