Reservoir EngineeringFluid Flow in Porous Media
Single Phase Mobility from Permeability and Viscosity Formula
Single Phase Mobility from Permeability and Viscosity calculates single-phase fluid mobility for fluid flow in porous media workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (k, mu) are known and the assumptions behind the cited fluid flow in porous media relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, lambda_f equals 50 mD/cP.
kmD
100
mucP
2
Inputs
k
mDEffective Permeability to the Flowing Phase
mu
cPFluid Viscosity
Outputs
lambda_f
mD/cP
Single-Phase Fluid Mobility
k
mD
Effective Permeability to the Flowing Phase
mu
cP
Fluid Viscosity
Source and review
reviewedPetroSkills, The Diffusivity Equation, Darcy-law proportionality to permeability divided by viscosity.
Source