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

Revision as of 10:46, 28 September 2020

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

McCain Oil Formation Volume Factor equation in the PVT Software

B_o = \frac{\rho_{STO}+1.22117R_s\gamma_g}{\rho_{oR}}

^[2]

Example source ^[3]

R_s

= 53.24 sm3/sm3

SG_o

= 0.85 or 35 API

SG_g

= 0.75

T

= 90C or 363K

P

= 10 MPa

Calculate oil density at p = 10 MPa?

\rho_o

= 749.645 kg/m3

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

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

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}

= stock tank oil density, kg/m³

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

@@ Line 27: / Line 27: @@
 == Application range ==
-Description of the Data Used<ref name= M1995/>:
-:<math>  133 \le P_b \le 6,700 </math>
+:<math>  2.35 \le R_s \le 322 </math>
-:<math>  77 \le T \le 327 </math>
+:<math>  0.754 \le SG_o \le 0.989 </math>
-:<math>  18 \le R_{sb} \le 1,975 </math>
+:<math>  0.555 \le SG_g \le 1.245 </math>
-:<math>  0.76 \le SG_o \le 0.95 </math>
+:<math>  21.1 \le T, C \le 160 </math>
-:<math>  0.556 \le SG_g \le 1.237 </math>
-:<math>  31.3 \le \rho_{ob} \le 55.77 </math>
-Number of data sets = 684<BR/>
 == Nomenclature ==