Difference between revisions of "Gas/Oil Interfacial Tension"
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:<math> At\ T<68F,\ \sigma_{od}=\sigma_{68}</math> | :<math> At\ T<68F,\ \sigma_{od}=\sigma_{68}</math> | ||
| − | :<math> At\ 68F<T<100F,\ \sigma_{od}= | + | :<math> At\ 68F<T<100F,\ \sigma_{od}=\sigma_{68} + \frac{(T - 68) * (\sigma_{100} - \sigma_{68})}{ (100 - 68)}</math> |
:<math>At\ T>100F,\ \sigma_{od}=\sigma_{100}</math> | :<math>At\ T>100F,\ \sigma_{od}=\sigma_{100}</math> | ||
| − | :<math> \sigma_{o}=\sigma_{od} \times (1-0. | + | :<math> \sigma_{o}=\sigma_{od} \times (1-0.024P^{0.45})</math> |
The interfacial tension becomes zero at miscibility pressure. 1 dyne/cm is used for calculations, then it becomes less than 1. | The interfacial tension becomes zero at miscibility pressure. 1 dyne/cm is used for calculations, then it becomes less than 1. | ||
Latest revision as of 22:02, 29 December 2023
Gas/Oil Interfacial Tension
Gas/Oil Interfacial Tension correlation was published by Baker and Swerdloff in 1956.
Math and Physics
The interfacial tension becomes zero at miscibility pressure. 1 dyne/cm is used for calculations, then it becomes less than 1.
Nomenclature
= pressure, psia
= oil specific gravity, °API
= gas/oil interfacial tension, dynes/cm
= gas/oil interfacial tension for dead oil, dynes/cm
= temperature, °F
See also
Gas/Oil Interfacial Tension
Gas/Water Interfacial Tension
References
Baker, O. and Swerdloff, W. 1955. Calculation of Surface Tension 3—Calculating parachor Values. Oil Gas J. (5 December 1955): 141.
Baker, O. and Swerdloff, W. 1956. Calculation of Surface Tension 6—Finding Surface Tension of Hydrocarbon Liquids. Oil Gas J. (2 January 1956): 125.
