Formation Volume Factor (FVF) for gas:
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B_g(p,T) = \frac{\rho_g^mathring{\circrho}_g}{\rho_g} = \frac{V_g}{\mathring{V}_g^{\circGg}} = \frac{q_g}{q_G{Gg}} |
where
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body | --uriencoded--\rho_g%5e%7B\circ%7D |
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| fluid density at reference conditions | LaTeX Math Inline |
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body | --uriencoded--V_m%5e%7B\circ%7D |
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| molar volume at reference conditions |
| fluid density at reservoir conditions | | molar volume at reservoir conditions |
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If reference conditions are set at SPE STP then equation then reference Z-factor
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body | --uriencoded--Z%5e%7B\circ%7D = 1 |
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is close to 1 for all natural gases and equation LaTeX Math Block Reference |
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takes takes explicit
from form as:
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B_g(p,T) = 0.3470 \cdot Z(p, T) \cdot \frac{T}{p} |
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Fluid (PVT) Analysis / Dynamic fluid properties
[ Formation Volume Factor (FVF) ][ Oil formation volume factor (Bo) ][ Water formation volume factor (Bw) ]