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Overall concept is applicable to both producers and injectors but can be split into specific definitions:

Productivity Index of producerInjectivity Index of injector


LaTeX Math Block
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J^{\uparrow} = \frac{q^{\uparrow}}{p_e - p_{wf}}



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J^{\downarrow} = \frac{q^{\downarrow}}{p_{wf} - p_e}


LaTeX Math Inline
bodyq^{\uparrow}

production rate

LaTeX Math Inline
bodyq^{\downarrow}

injection rate


See Also

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Petroleum Industry / Upstream / Production / Subsurface Production / Well & Reservoir Management

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