Difference between revisions of "Water salinity from density equation"
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==Water salinity from density equation== | ==Water salinity from density equation== | ||
| − | Handy equation to get formation water (brine) salinity from the density. | + | Handy equation to get the formation water (brine) salinity from the density at standard conditions obtained by the data regression with a stage line. |
[[File:Water salinity from density equation.png|thumb|right|600px|Water salinity from density equation <ref name= M1990/>]] | [[File:Water salinity from density equation.png|thumb|right|600px|Water salinity from density equation <ref name= M1990/>]] | ||
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==Math and Physics== | ==Math and Physics== | ||
| − | :<math> C_{mg/l} = | + | :<math> C_{mg/l} = 25000 \times (SG_w - 1) \times 62.428 </math> |
| + | |||
| + | ==Example. Calculating water salinity from density== | ||
| + | Example source <ref name= M1990/> | ||
| + | ===Input data=== | ||
| + | :<math>\rho_w</math> = 65.4 lbm/ft3 | ||
| + | |||
| + | Calculate water salinity in weight percent solids? | ||
| + | |||
| + | ===Solution=== | ||
| + | :<math> SG_w = \rho_w/62.428=1.0476</math> | ||
| + | :<math> C_{mg/l} = 25000 (1.0476 - 1) 62.428 = 74289.32 </math> | ||
| + | :<math> C_{ppm} = 74289.32 / 1.0476 = 70913.8</math> | ||
| + | :<math> C_W = 70913.8 / 10000 = 7.1 %</math> | ||
== Nomenclature == | == Nomenclature == | ||
| + | :<math> C_{ppm} </math> = water salinity / solids concentration, ppm | ||
:<math> C_{mg/l} </math> = water salinity / solids concentration, mg/l | :<math> C_{mg/l} </math> = water salinity / solids concentration, mg/l | ||
| + | :<math> C_W </math> = weight percent solids, % | ||
:<math> SG_w </math> = water specific gravity, dimensionless | :<math> SG_w </math> = water specific gravity, dimensionless | ||
| + | ==See also== | ||
| + | :[[Water bubble point pressure]]<BR/> | ||
| + | :[[Water compressibility]]<BR/> | ||
| + | :[[Water density]]<BR/> | ||
| + | :[[Water formation volume factor]]<BR/> | ||
| + | :[[Water salinity from density equation]]<BR/> | ||
| + | :[[Water solids concentration]]<BR/> | ||
| + | :[[Water viscosity]]<BR/> | ||
| + | :[[Gas/Water Interfacial Tension]] | ||
== References == | == References == | ||
<references> | <references> | ||
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</references> | </references> | ||
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Latest revision as of 08:16, 5 October 2020
Contents
Water salinity from density equation
Handy equation to get the formation water (brine) salinity from the density at standard conditions obtained by the data regression with a stage line.
Water salinity from density equation [1]
Math and Physics
Example. Calculating water salinity from density
Example source [1]
Input data
= 65.4 lbm/ft3
Calculate water salinity in weight percent solids?
Solution
Nomenclature
= water salinity / solids concentration, ppm
= water salinity / solids concentration, mg/l
= weight percent solids, %
= water specific gravity, dimensionless
See also
- Water bubble point pressure
- Water compressibility
- Water density
- Water formation volume factor
- Water salinity from density equation
- Water solids concentration
- Water viscosity
- Gas/Water Interfacial Tension
References
- ↑ 1.0 1.1 McCain, W.D. Jr. (1990). Properties of Petroleum Fluids (2 ed.). Oklahoma: PennWell Corp. ISBN 978-0878143351.
