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Selection of PVT Correlations Chapter | 9  211




























             FIGURE 9.3 Selection of bubble point pressure correlation from the four basic inputs for
             Problem 2.


               TABLE 9.5 Bubble Point Pressure Results From Different Correlations
               for Problem 2
               Correction                Bubble Point Pressure (psia)  Error (%)
               Laboratory                1657                         0
               Al-Marhoun (1988)         1198                       2 28
               Al-Shammasi (2001)        1754                         6
               Dindoruk and Christman (2004)  1609                   2 3
               Hanafy et al. (1997)      2616                        58
               Kartoatmodjo (1994)       2000                        21
               Lasater (1958)            1944                        17
               Velarde and McCain (1997)  2282                       38



             1947). Fig. 9.9 shows the comparison plot between the laboratory-measured
             data and the two correlations available for saturated oil density. The
             comparison shows that the Standing (1947) correlation impressively predicts
             the saturated oil density for the oil of Problem 2. The undersaturated oil den-
             sity was calculated from the basic equation in the two correlations presented
             in the figure.
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