Water viscosity

From wiki.pengtools.com
Revision as of 06:56, 5 October 2020 by MishaT (talk | contribs)
Jump to: navigation, search

Water viscosity

Water viscosity correlation is published by McCain in 1991[1].

Water viscosity correlation in the PVT software at pengtools.com

Math and Physics

 \mu_{w1} = AT^{-B}[1]

where

 A = 109.574 - 8.40564 C_W + 0.313314 C_W^2 + 0.00872213 C_W^3 [1]
 B = -1.12166 + 2.63951(10^{-2}) C_W - 6.79461(10^{-4}) C_W^2 - 5.47119(10^{-5}) C_W^3 + 1.55586(10^{-6}) C_W^4[1]
 \mu_{w} = \mu_{w1} (0.9994 + 4.0295(10^{-5})\ P + 3.1062(10^{-9})\ P^2)[1]

Example. Calculating water viscosity

Input data

 C_{mg/l} =  74289.3
 SG_w =  1.0476

Calculate water viscosity at 3176 psia and 165°F?

Solution

 C_W = 74289.3 / 1.0476 / 10000 = 7.1%
 A=68.83262779
 B=0.984227021
 \mu_{w1} = 0.45
 \mu_w = \mu_{w1} 1.1587 = 0.52 cP

The solution is also available in the PVT software model at [The solution is available in the PVT calculator software model at www.pengtools.com


Nomenclature

 A, B = coefficients
 C_{mg/l} = pressure correction, res bbl/STB
 C_W = water salinity or weight percent solids, %
 P = pressure, psia
 T = Temperature, °F
 \mu_w = water viscosity, cP
 \mu_{w1} = water viscosity at 1 atm, cP

See also

Water bubble point pressure
Water compressibility
Water density
Water formation volume factor
Water salinity from density equation
Water solids concentration
Water viscosity

References

  1. 1.0 1.1 1.2 1.3 1.4 McCain, W.D. Jr. (1991). "Reservoir-Fluid Property Correlations-State of the Art"Free registration required. Society of Petroleum Engineers (SPE-18571-PA).