Oil correlations based on North Sea on Middle Eastern oil samples.
Saturated oil formation volume factor, Bo | bbl/stb\displaystyle B_o(p, T) = 1.0 + 10%5eA, \quad A = -6.58511 + 2.91329 \, \ln B%5e*_%7Bob%7D - 0.27683 \, \left( \ln B%5e*_%7Bob%7D \right)%5e2| p_b = c_1 \, R_s%5e%7Bc_2%7D \,\gamma_g%5e%7Bc_3%7D \, \gamma_o%5e%7Bc_4%7D \, T%5e%7Bc_5%7D |
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B%5e*%7Bob%7D = R_s \, \left( \frac%7B\gamma_g%7D%7B\gamma_o%7D \right)%5e%7B0.526%7D + 0.968 \, TSaturated oil gas solubility, Rs | scf/stb | p ≤ pb | | LaTeX Math Inline |
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| body | --uriencoded--\displaystyle R_s(p, T) = \ |
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gamma_g \cdot \big[ \gamma_%7BAPI%7D%5e%7B0.989%7D \, p%5e*_b \, T%5e%7B-0.172%7D \big]%5e%7B1.2255%7D, \quad p%5e*_b = 10%5eX, \quad X = 2.8869 - (14.1811 - 3.3093 \, \ln p)%5e%7B0.5%7D| left[ %7Bc_1%7D%5e%7B-1%7D p \, \gamma_g%5e%7B-c_3%7D \, \gamma_o%5e%7B-c_4%7D \, T%5e%7B-c_5%7D \right]%5e%7B1/c_2%7D |
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| body | --uriencoded--c_1 = 5.38088 \cdot 10%5e%7B-3%7D, \ c_2 = 0.715082, \ c_3 = -1.877840 , \ c_4 = 3.1437, \ c_5 = 1.32657 |
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Saturated oil formation volume factor | Bo | bbl/stb | p ≤ pb |
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Bubble point pressure, pb | psia | , \displaystyle p%5e*_b = \left( R_s/\gamma_g \right)%5ea \, T%5eb \, \gamma_%7BAPI%7D%5ec| B_o(p, T) = c_1 + c_2 \, T + c_3 \, F + c_4 \, F%5e2 |
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\displaystyle p_b = a \, R_s%5eb | F =R_s%5e%7Bc_5%7D(p, T) \, \gamma_g%5e%7Bc_ |
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g%5ec _o%5ed \, T%5eea | --uriencoded--c_1 =0.497069, \ c_2 = 0. |
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816 | 862963 \cdot 10%5e%7B-3%7D, \ c_3 = 0.182594 \cdot 10%5e%7B-2%7D , \ c_4 = 0. |
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989 | 318099 \cdot 10%5e%7B-5%7D |
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--uriencoded-- b = \begin%7Bcases%7D 172 & \mbox%7Bfor Black Oil%7D \\ 130 & \mbox%7Bfor Volatile Oil%7D \end%7Bcases%7Dwhere
See Also
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Petroleum Industry / Upstream / Petroleum Engineering / Subsurface E&P Disciplines / Reservoir Engineering (RE) / PVT correlations / Oil correlations
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