Permeability 05
Permeability 05 : A measure of ability of a rock to transmit fluids. By definition, a rock has permeability of 1 darcy if it permits flow of 1 cubic centimeter per second of single phase fluid having viscosity of 1 centipoise under pressure gradient of 1 atmosphere per centimeter. Practical unit of measure is millidarcy, or .001 darcy. (WT)