changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Mar 22, 2020
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The PIR can be related to the current VRR IVRR as:
{\rm PIR}= \frac{1}{\rm IVRR} \cdot \frac{1-Y_w}{Y_w + (1-Y_w) \, \left[ \frac{B_o}{B_w} + \frac{B_g}{B_w} \, ( {\rm GOR} - R_s) \right] }