Environmental Engineering Reference
In-Depth Information
Gas Solubility in Water
. Gas is soluble in water; the solubility is a function of tem-
perature and water salinity. Figure
3.10
gives a means of finding
R
sw
. An example on
how to use Fig.
3.10
to find gas solubility in water for a given set of input parameters
is given here below:
T
wf
= 180 °F,
p
wf
= 3,400 psia,
C
NaCl
= 20,000 ppm.
1. (Top) Enter the abscissa at
T
wf
= 180 °F
2. Go up to
p
wf
= 3,400 psia
3. Read
R
′
sw
= 16 cf/B
4. (Bottom) Enter the abscissa at 20 (20,000 ppm)
5. Go up to
T
= 180
6. Read
F
bc
= 0.91
7.
R
sw
=
R
′
sw
×
F
bc
= 16 × 0.91 = 15 cf/B
Fig. 3.10
Solubility of gas in water. Courtesy Schlumberger (after Dodson and Standing 1944)
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