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| initial formation pressure | ||||||||
| effective porosity as function of formation pressure
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| drainage area | ||||||||
| effective formation thickness averaged over drainage area | ||||||||
| cumulative offtakes by the time moment
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| cumulative intakes by the time moment
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For low compressibility fluid
| LaTeX Math Inline | ||
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| LaTeX Math Block Reference | ||
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| LaTeX Math Block | ||||
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\phi_e (p_i) \, c_t(p_i) \, p_i - \phi_e(p) \, c_t(p) \, p(t) = \frac{Q^{\uparrow}_t(t) - Q^{\downarrow}_t(t)}{A_e \cdot h_e} |
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