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A_e \, h_e \int_{p_i}^p \phi_e(p) \, c_t(p) \, dp = \Delta Q (t) = Q^{\downarrow}_t(t) - Q^{\uparrow}_t(t) + Q^{\downarrow}_{GC}(t) + Q^{\downarrow}_{AQ}(t) |
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P_{wf}(t) = p(t) - J^{-1} \frac{dQ^{\uparrow}}{dt} |
where
| initial formation pressure |
| cumulative reservoir fluid balance | ||||||||||||
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| cumulative offtakes by the time moment
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| cumulative intakes by the time moment
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| cumulative volumetric inflow from gas cap expansion | |||||||||||||
| effective formation thickness averaged over drainage area |
| cumulative volumetric inflow from aquifer expansion |
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