Geoscience Reference
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Reservoir Pressure, psia
Petrosky-Farshad *
Hanafy et al.
Vasquez-Beggs *
Dindoruk-Christman *
Bergman-Sutton *
* used Beggs-Robinson equations to calculate oil viscosity at bubblepoint pressure
Fig. 3-43. Average relative errors and average absolute relative errors of subsets of the data
described in table 3-26 sorted on reservoir pressure show the quality of selected correlation
equations for estimating reservoir oil viscosities for pressures greater than bubblepoint pressure
across the full range of this independent variable.
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