@wikipedia
Total volume of subsurface oilVolumetric value of Oil Initial In Place (OIIP) recalculated to NTP conditions:
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| anchor | STOIIP |
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V_{\rm STOIIP} = \int_{\Omega} \left[ \frac{s_o{oi}({\bf r}) }{B_o} + \frac{R_v \, s_g{gi}({\bf r})}{B_g} \right] \phi_e({\bf r}) dV |
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| Petroleum reservoir |
| Position vector to some location in a reservoir |
| Volume element of a reservoir |
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| body | p_i({\bf r}), \, T_i({\bf r}) |
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| body | --uriencoded--s_o%7Boi%7D({%7B\bf r}r%7D), \, s_g%7Bgi%7D({%7B\bf r}r%7D) |
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| body | B_o(p_i, T_i), \, B_g(p_i, T_i) |
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| Oil FVF and Gas FVF at Initial formation pressure and temperature |
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| body | R_s(p_i, T_i), \, R_v(p_i, T_i) |
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| Solution GOR and Vaporized Oil Ratio at Initial formation pressure and temperature |
For practical implementation of of
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one needs to build a
geological model Geological Model (GM) and perform
a discrete a numerical integration.
See Also
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Petroleum Industry / Upstream / Exploration / Booking Reserves / Oil Initial In Place (OIIP) / Stock-Tank Oil Initial In-Place (STOIIP)
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