Undersaturated oil formation volume factor, p ≤ pb | Bo(p) | bbl/stb | \displaystyle B_o(p) = 1 + a_1 \, R_s(p) + (T-60) \, \left( \frac{\gamma_{API}}{\gamma_g} \right) \, \big[ a_2 +a_3 \, R_s(p) \big] |
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where
Undersaturated oil formation volume factor, p ≤ pb | Bo(p) | bbl/stb | \displaystyle B_o(p) = 1 + a_1 \, R_s(p) + (T-60) \, \left( \frac{\gamma_{API}}{\gamma_g} \right) \, \big[ a_2 +a_3 \, R_s(p) \big] |
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where