Phase Behavior and ThermodynamicsFluid Properties
Beggs-Robinson Dead Oil Viscosity Correlation Formula
Beggs-Robinson Dead Oil Viscosity Correlation calculates dead oil viscosity for fluid properties workflows in phase behavior and thermodynamics.
How engineers use this formula
Use this formula when the listed inputs (T, gamma_o) 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_od equals 2.190251 cP.
Tdeg F
180
gamma_odimensionless
0.85
Inputs
T
deg FTemperature
gamma_o
dimensionlessOil Specific Gravity
Outputs
mu_od
cP
Dead Oil Viscosity
x_br_dead_oil
dimensionless
Beggs-Robinson Dead Oil Viscosity Exponent
gamma_o
dimensionless
Oil Specific Gravity
T
deg F
Temperature
Source and review
reviewedBeggs, H.D. and Robinson, J.R. 1975. Estimating the Viscosity of Crude Oil Systems, SPE-5434-PA.
Source