Phase Behavior and ThermodynamicsPVT Properties
Jacoby Aromaticity Factor Formula
Jacoby Aromaticity Factor calculates jacoby aromaticity factor for pvt properties workflows in phase behavior and thermodynamics.
How engineers use this formula
Use this formula when the listed inputs (gamma, M) are known and the assumptions behind the cited pvt 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, J_a equals 0.558395 dimensionless.
gammadimensionless
0.9
Mlbm/lbmol
200
Inputs
gamma
dimensionlessSpecific Gravity
M
lbm/lbmolMolecular Weight
Outputs
J_a
dimensionless
Jacoby Aromaticity Factor
gamma
dimensionless
Specific Gravity
M
lbm/lbmol
Molecular Weight
Source and review
reviewedPhase Behavior, Whitson, C. H., Brule, M. R. (2000)
Whitson, C.H. and Brule, M.R. 2000. Phase Behavior, SPE Monograph Series, Chapter 5, Page 78.
Source