Geoscience Reference
In-Depth Information
10
5
0
-5
-10
-15
-20
-25
25
20
15
10
5
0
20
25
30
35
40
45
50
Stock-Tank Oil Gravity, °API
Velarde et al.,
p
b
from data
Velarde at al.,
p
b
from Eqs. 3.7
Standing
Glaso
Vazquez-Beggs
Kartoatmodjo-Schmidt
Fig. 3-6. Average relative errors and average absolute relative errors of subsets of the data
described in table 3-9 sorted on stock-tank oil gravity show the quality of selected correlation
equations for estimating solution gas-oil ratios at pressures less than bubblepoint pressure across
the full range of this independent variable.
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