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Ratio of field-wide oil production rate 

LaTeX Math Inline
bodyq_O
 to field-wide water injection rate 
LaTeX Math Inline
bodyq_{WI}
:

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{\rm PIR} = \frac{q^{\uparrow}_O}{q^{\downarrow}_{WI}}

It measures how efficiently waterflood supports the oil production and represent one of the key Waterflood Diagnostics.

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LaTeX Math Block Reference
anchorVRR_PIR
pageInstantaneous Voidage Replacement Ratio = IVRR

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See Also

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Petroleum Industry / Upstream /  Production / Subsurface Production / Field Study & Modelling /  Production Analysis / Waterflood Diagnostics

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