Oil correlations based on California oil samples.
| Bubble point pressure | pb | psia |
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| body | --uriencoded--\displaystyle p_b = c_1 \cdot \left[ \left( \frac%7BR_%7Bsb%7D%7D%7B\gamma_g%7D \right)%5e%7Bc_2%7D \, 10%5e%7B-X %7D+ c_3 \right], \quad X = c_4 \, \gamma_%7BAPI%7D + c_5 \, T |
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| body | c_1 = 18.2 \ , \ c_2 = 0.83 \ , \ c_3 = -1.4 \ , \ c_4 = 0.0125 \ , \ c_5 = -0.00091 |
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| Saturated gas solubility | Rs | scf/stb | p ≤ pb | | LaTeX Math Inline |
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| body | --uriencoded--\displaystyle R_s(p, T) = \gamma_g \cdot \big[ (c_1 +c_2\, p) \cdot 10%5eX \big]%5e%7Bc_3%7D, \quad X = c_4 \, \gamma_%7BAPI%7D + c_5 \, T |
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| body | c_1 = 1.4 \ , \ c_2 = 1/18.2 \ \ c_3 = 1.2048 \ \ c_4 = 0.0125 \ , \ c_5 = -0.00091 |
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Saturated oil formation volume factor | Bo | bbl/stb | p ≤ pb | | LaTeX Math Inline |
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| body | --uriencoded--\displaystyle B_o(p, T) = c_1 + c_2 \cdot \left[ R_s(p, T) \left( \frac%7B\gamma_g%7D%7B\gamma_o%7D \right)%5e%7Bc_4%7D + c_3 \, T \right]%5e%7Bc_5%7D |
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| body | --uriencoded--c_1 = 0.972 \ , \ c_2 = 1.47 \cdot 10%5e%7B-4%7D \ , \ c_3 = 1.25 \ , \ c_4 = 0.5 \ , \ c_5 = 1.175 |
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where
See Also
Petroleum Industry / Upstream / Petroleum Engineering / Subsurface E&P Disciplines / Reservoir Engineering (RE) / PVT correlations / Oil correlations
References
Standing, Marshall B., and Donald L. Katz. "Density of Natural Gases." Trans. 146 (1942): 140–149, doi.org/10.2118/942140-G
