Difference between revisions of "McCain Oil Formation Volume Factor equation"

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Example source <ref name=DW/>
 
Example source <ref name=DW/>
 
===Input data===
 
===Input data===
−
:<math>R_s</math> = 53.24 sm3/sm3 at P = 10 MPa
+
:<math>R_s</math> = 53.24 sm<sup>3</sup>/sm<sup>3</sup> at P = 10 MPa
 
:<math>SG_o</math> = 0.85 or 35 API
 
:<math>SG_o</math> = 0.85 or 35 API
 
:<math>SG_g</math> = 0.75
 
:<math>SG_g</math> = 0.75
−
:<math>\rho_{oR}</math> = 749 kg/m3 at P = 10 MPa
+
:<math>\rho_{oR}</math> = 749 kg/m<sup>3</sup> at P = 10 MPa
  
 
Calculate oil formation oil factor at p = 10 MPa?
 
Calculate oil formation oil factor at p = 10 MPa?
  
 
===Solution===
 
===Solution===
−
:<math>B_o</math> = 1.199 rm3/sm3
+
:<math>B_o</math> = 1.199 rm<sup>3</sup>/sm<sup>3</sup>
  
 
The solution is available in the online PVT calculator software model at [https://www.pengtools.com/pvtCalculator?paramsToken=de71e4cc29541ab2117e07408864410c www.pengtools.com]
 
The solution is available in the online PVT calculator software model at [https://www.pengtools.com/pvtCalculator?paramsToken=de71e4cc29541ab2117e07408864410c www.pengtools.com]

Revision as of 10:53, 28 September 2020

McCain Oil Formation Volume Factor equation

McCain equation is determined from material material balance equation based on the definition of the oil formation volume factor[1].

File:McCain Oil Formation Volume Factor equation
McCain Oil Formation Volume Factor equation in the PVT Software

Math & Physics

B_o = \frac{\rho_{STO}+1.22117\ R_s\ SG_g}{\rho_{oR}}[2]

Example. Calculation of the oil density

Example source [3]

Input data

R_s = 53.24 sm3/sm3 at P = 10 MPa
SG_o = 0.85 or 35 API
SG_g = 0.75
\rho_{oR} = 749 kg/m3 at P = 10 MPa

Calculate oil formation oil factor at p = 10 MPa?

Solution

B_o = 1.199 rm3/sm3

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

Application range

2.35 \le R_s \le 322
0.754 \le SG_o \le 0.989
0.555 \le SG_g \le 1.245
21.1 \le T, C \le 160

Nomenclature

B_o = oil formation volume factor, rm3/sm3
R_s = solution gas-oil ratio, sm3/sm3
SG_g = gas specific gravity, dimensionless
\rho_{oR} = oil density at reservoir conditions, kg/m3
\rho_{STO} = SG_o \times 1000 = stock tank oil density, kg/m3

References

  1. ↑ McCain, W.D. Jr. (1990). Properties of Petroleum Fluids (2 ed.). Oklahoma: PennWell Corp. ISBN 978-0878143351. 
  2. ↑ Afanasyev, Vitaliy; Moskvin, Igor; Wolcott, Ken; McCain, W.D. (2004). "Practical PVT Calculations for black oils". YUKOS publication. 
  3. ↑ Wolcott, Don (2009). Applied Waterflood Field DevelopmentPaid subscription required. Houston: Energy Tribune Publishing Inc. 
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