Phase Behavior and ThermodynamicsFluid Properties

Absolute Viscosity for Saybolt Viscosimeter Measurements Formula

\mu=v\rho

Absolute Viscosity for Saybolt Viscosimeter Measurements calculates absolute viscosity for fluid properties workflows in phase behavior and thermodynamics.

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How engineers use this formula

Use this formula when the listed inputs (v, rho) are known and the assumptions behind the cited fluid 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, mu equals 30.1 cP.

vcSt

rhog/cm^3

0.86

Inputs

v

cSt

Kinematic Viscosity

rho

g/cm^3

Measured Fluid Density

Outputs

mu

Absolute Viscosity

v

cSt

Kinematic Viscosity

rho

g/cm^3

Measured Fluid Density

Source and review

reviewed

Petroleum and Natural Gas Laboratory Course Notes, I-Fluid Properties, Mihcakan, I. M., Alkan, K. H., Ugur, Z. (2001)

Mihcakan, I. M., Alkan, K. H., and Ugur, Z. 2001. Petroleum and Natural Gas Laboratory Course Notes, I-Fluid Properties, ITU Petroleum and Natural Gas Engineering, Page 2-7.

Source