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→Compressibility Oil
If there is no PVT analysis data, compressibility oil can be calculated by this equation
If there is no PVT analysis data, compressibility oil can be calculated by this equation
For P>Pb:
For P > P<sub>b</sub>:
: <math>C_o = \frac{5Rsb + 1.72T - 1180 \gamma_g + 12.62 ^{\circ}\text{API} - 1433}{P \times 10^5}</math>
: <math>C_o = \frac{5Rsb + 1.72T - 1180 \gamma_g + 12.62 ^{\circ}\text{API} - 1433}{P \times 10^5}</math>
For P<Pb:
For P < P<sub>b</sub>:
[[File:Rumus 2.png|450px|thumbnail|center]]
[[File:Rumus 2.png|450px|thumbnail|center]]
Where T in Fahrenheit (°F)
Where T in Fahrenheit (°F)