PetrophysicsRock Properties
Liquid Permeability - Permeameter Lab Measurement Formula
Liquid Permeability - Permeameter Lab Measurement calculates permeability for rock properties workflows in petrophysics.
How engineers use this formula
Use this formula when the listed inputs (mu, t, V, P, L, A) are known and the assumptions behind the cited rock properties 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, k equals 0.416667 D.
mucP
1
ts
60
Vcm^3
100
Patm
2
Lcm
5
Acm^2
10
Inputs
mu
cPViscosity of Liquid Phase
t
sFlowing Time
V
cm^3Liquid Volume Flowed During Time t
P
atmPressure Gauge Reading
L
cmPlug Length
A
cm^2Open-Flow Area of Plug
Outputs
k
D
Permeability
mu
cP
Viscosity of Liquid Phase
V
cm^3
Liquid Volume Flowed During Time t
L
cm
Plug Length
A
cm^2
Open-Flow Area of Plug
P
atm
Pressure Gauge Reading
t
s
Flowing Time
Source and review
reviewedMihcakan, I.M., Alkan, K.H. and Ugur, Z. 2001. Petroleum and Natural Gas Laboratory Course Notes, ITU, Page 2-6.
Source