Page 60 - Formulas and Calculations for Petroleum Engineering

Reservoir engineering formulas and calculations Chapter 1 53

Formula(s)

m P 1hr P
R
C ¼ 5:456 exp 2:303
A
m 0 m 0
Reference: Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 1,
Page: 47.

1.120 Solution gas oil ratio—Beggs-standing correlation—P < Pb
Input(s)

T: Temperature (F)
g g : Specific gravity of produced gas (fraction)
p: Pressure1 (psi)
p o : Pressure at given API (psi)

Output(s)
Y g : Constant (fraction)
R so : Solution Gas Oil Ratio (fraction)

Formula(s)

Y ¼ 0:00091 T 0:0125 p
g o
1:204

p
R ¼ g
so
g
18 10 Y g
Reference: Applied Petroleum Reservoir Engineering, Second Edition, Craft & Hawkins, Page: 33.

1.121 Solution gas oil ratio—Standing’s correlation
Input(s)

g g : Gas Specific Gravity (fraction)
p: Pressure (psi)
API: API Gravity of Oil (API)
t: Temperature (F)

Output(s)
R s : Solution Gas Oil Ratio (SCF/STB)

Formula(s)

1:2048
0:0125 API
p 10

*
s
18 10
R ¼ g g 0:00091 t
Reference: Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted
Approach Page: 2/20.