Difference between revisions of "Water density"

Revision as of 12:09, 1 October 2020

The density of formation water (brine) at standard conditions (14.7psia & 60°F)^[1]

\rho_{wSC} = C_{mg/l}/25000 + 62.428

The density of formation water (brine) at reservoir conditions ^[1]

\rho_{wR}=1/B_w

Example source ^[1]

C_{mg/l} = 74289.3

Estimate the density of the brine at standard conditions (14.7psia & 60°F) and at 3176 psia and 165°F?

\rho_{wSC} = 74289.3/25000 + 62.428 = 65.4 lb_m/ft^3

B_w

= water formation volume factor, res bbl/STB

C_{mg/l}

= water salinity or solids concentration, mg/l

\rho_{wSC}

= water density at standard conditions, lb_m/ft³

↑ ^1.0 ^1.1 ^1.2 McCain, W.D. Jr. (1990). Properties of Petroleum Fluids (2 ed.). Oklahoma: PennWell Corp. ISBN 978-0878143351.

Cite error: <ref> tag with name "M1991" defined in <references> is not used in prior text.

@@ Line 14: / Line 14: @@
 Example source <ref name= M1990/>
 ===Input data===
-:<math> \C_W = 7.1%</math>
+:<math> C_{mg/l} = 74289.3 </math>
 Estimate the density of the brine at standard conditions (14.7psia & 60°F) and at 3176 psia and 165°F?
 ===Solution===
-:<math> \Delta V_{wP} = -0.0047241</math>
+:<math> \rho_{wSC} = 74289.3/25000 + 62.428 = 65.4 lb_m/ft^3</math>
-:<math> \Delta V_{wT} = 0.027</math>
-:<math> B_w = 1.022</math>
 == Nomenclature  ==
 :<math> B_w </math> = water formation volume factor, res bbl/STB
-:<math> P </math> = pressure, psia
+:<math> C_{mg/l} </math> = water salinity or solids concentration, mg/l
-:<math> T </math> = Temperature, °F
+:<math> \rho_{wSC} </math> = water density at standard conditions, lb<sub>m</sub>/ft<sup>3</sup>
-:<math> \Delta V_{wP} </math> = pressure correction, res bbl/STB
-:<math> \Delta V_{wT} </math> = temperature correction, res bbl/STB
 ==See also==