Undersaturated Oil Density
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Oil density for undersaturated systems.
rho_o = rho_ob * exp[co*(p-pb)]
Where
rho_o = oil density at p and T, for p > pb, lbm/cu ft,
rho_ob = oil density at pb and T, lbm/cu ft.
For more info, refer to
Saturated Oil.
p= pressure of interest, psia,
pb = bubblepoint pressure at T, psia.
For more info, refer to
Vasquez & Beggs,
Lasater, or
Standing.
co = oil isothermal compressibility at T, 1/psi.
For more info, refer to
Isothermal Compressibility.
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