Geoscience Reference
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40
30
20
10
0
-10
-20
45
40
35
30
25
20
15
10
5
15
20
25
30
35
40
45
50
Stock-Tank Oil Gravity, °API
Valko-McCain
Standing
Glaso
Lasater
Labedi
Fig. 3-1. Average relative errors and average absolute relative errors of subsets of the data
described in table 3-6 sorted on stock-tank oil gravity show the quality of selected correlation
equations for estimating bubblepoint pressures across the full range of this indpendent variable.
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