Geoscience Reference
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25
20
15
10
5
0
-5
25
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15
10
5
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25
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Stock-Tank Oil Gravity, °API
Eq. 3.16a with Eqs. 3.17
McCain et al.
Fig. 3-15. 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 oil compressibilities for pressures less than bubblepoint pressure across
the full range of this independent variable.
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