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| LaTeX Math Block | ||||
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VA_e \, h_e \int_{p_i}^p \phi_e(p) \, c_t(p) \, dp = Q^{\uparrow}_t(t) - Q^{\downarrow}_t(t) |
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| initial formation pressure | |||||||||||||||
| cumulative offtakes by the time moment
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| cumulative intakes by the time moment
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| effective porosity as function of formation pressure
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| V_e =
| \, h_{eff}drainage | volume
| drainage area | ||||||||||||
| effective formation thickness averaged over drainage area |
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p(t) = p_i - \frac{Q^{\uparrow}_t(t) - Q^{\downarrow}_t(t)}{V_e \cdot \phi_e \cdot c_t}c_t} |
where
| drainage volume |
See Also
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Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis
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