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Line 178: − + − + + +
→Oil Viscosity
* R<sub>s</sub> = gas saturated under bubble point
* R<sub>s</sub> = gas saturated under bubble point
===<big>Oil Viscosity</big><big></big>===
===Oil Viscosity===
Oil reservoir with pressure above the bubble point, the viscosity decreases as a result of a pressure drop. If otherwise (P <Pb), viscosity enlarged in line with declining reservoir pressure as a result of dissolved gas liberated.
Oil reservoir with pressure above the bubble point, the viscosity decreases as a result of a pressure drop. If otherwise (P <Pb), viscosity enlarged in line with declining reservoir pressure as a result of dissolved gas liberated.
For P ≤ Pb:
'''For P ≤ P<sub>b</sub>:'''
Dead oil calculated by Egbogah correlation:
: <math>\log [ \log(\mu_{OD} + 1)] = 1.8653 - 0.025086(^{\circ} \text{API}) - 0.5644 \log{T}</math>
[[File:Rumus4.png|350px|thumbnail|center]]
[[File:Rumus4.png|350px|thumbnail|center]]
where,
where,