One of the Productivity Diagnostics methods based on relation between average pressure drawdown
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body | --uriencoded--\overline %7B\delta p%7D |
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\overline {\delta p} (t) = \frac{1}{t} \int_0^t \left( p_{wf}(\tau) - p_e(\tau) \right) d\tau |
and total sandface flowrate cumulativecumulatives
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\bar q_t(t) = \frac{1}{t} \int_0^t q_t(\tau) d\tau |
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body | --uriencoded--\displaystyle \overline %7B\delta p%7D (t) = \frac%7B1%7D%7Bt%7D \int_0%5et \left( p_%7Bwf%7D(\tau) - p_e(\tau) \right) d\tau |
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...
where
| production/injection time |
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body | --uriencoded--p_%7Bwf%7D |
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| bottomhole pressure as function of time |
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