Hydrodynamic potential (''h'') is usually measured as the elevation to which water would rise in an open borehole, called the ''potentiometric elevation''. It is calculated from the reservoir pressure by the following relationship (Equation 1): | Hydrodynamic potential (''h'') is usually measured as the elevation to which water would rise in an open borehole, called the ''potentiometric elevation''. It is calculated from the reservoir pressure by the following relationship (Equation 1): |