The plot of water production rate(along y-axis) against the oil production rate (along x-axis).
It can be used in express water cut diagnostics of thief water production.
The mathematical model of the thief water production from rater reservoir is based on the following equationqOW plotis based on the following correlation between oil production rate and water production rate:
| LaTeX Math Block |
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| q_W = a \, \cdot q_O + b |
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| a = J^{-1}_{1O} \cdot ( J_{1W} + J_{2W}) |
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| b = J_{2W} \cdot (p^*_2 - p^*_1) |
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