In multiphase flow in porous media, the relative permeability of a phase is a dimensionless measure of the effective permeability of that phase. It is the ratio of the effective permeability …

Relative permeability to oil (K ro), gas (K rg), or water (K rw) is the ratio of effective permeability of oil, gas, or water to absolute permeability. Relative permeability can be expressed as a …

Relative permeability is defined as the ratio of effective permeability to absolute permeability, indicating the ability of a porous medium to allow fluid flow in the presence of other fluids.

The relative permeability is the ratio of the permeability of a specific medium to the permeability of free space µ0. µr = µ / µ0(1) where. µr = relative permeability. µ = permeability of the medium …

Drainage relative permeability refers to a saturation change where the wetting phase is decreasing from the reservoir rock, while imbibition refers to a saturation change where the …

Relative permeability is a concept used to convey the reduction in flow capability due to the presence of multiple mobile fluids. It is dependent upon pore geometry, wettability, fluid …

Relative permeability is the reduction of mobility between more than one fluid flowing through a porous media, and is the ratio of the effective permeability of a fluid at a fixed saturation to the …

Relative permeability is calculated based on the upstream saturation. If the two cells are at the same level, then the upstream cell is simply the cell with higher pressure.

If S e f f <0 Seff <0 then the relative permeability is zero, while if S e f f> 1 Seff>1 then the relative permeability is unity. Otherwise, the relative permeability is given by the expressions below.

Paramagnetic materials are attracted to magnetic fields, hence have a relative magnetic permeability greater than one (or, equivalently, a positive magnetic susceptibility).