Gas/Water Interfacial Tension

Gas/Water Interfacial Tension

Gas/Water Interfacial Tension correlation was published by Baker and Swerdloff in 1956.

Gas/Water Interfacial Tension correlation in the PVT software at pengtools.com

Math and Physics

$\sigma_{74} =75 - 1.108P^{0.349}$

$\sigma_{280} =53-0.1048P^{0.637}$

$At\ T<74F,\ \sigma_w=\sigma_{74}$

$At\ 74F<T<280F,\ \sigma_w=\frac{\sigma_{74} + (T - 74) * (\sigma_{280} - \sigma_{74})}{ (280 - 74)}$

$At\ T>280F,\ \sigma_w=\sigma_{280}$

Nomenclature

$P$ = pressure, psia

$\sigma_w$ = gas/water interfacial tension, dynes/cm

$T$ = temperature, °F

See also

Gas/Oil Interfacial Tension

Gas/Water Interfacial Tension

Water bubble point pressure

Water compressibility

Water density

Water formation volume factor

Water salinity from density equation

Water solids concentration

Water viscosity

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.