Difference between cumulative water injection
Q_W^{\downarrow} and cumulative water production
Q_W^{\uparrow}:
| {\rm WOBR} = \frac{\rm WR}{OR_{\rm remaining}} = \frac{ Q_W^{\downarrow} - Q_W^{\uparrow} } { OR_{\rm initial} - Q_O^{\uparrow} } |
See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis / Waterflood Diagnostics