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The equations 

LaTeX Math Block Reference
anchorp
 and
LaTeX Math Block Reference
anchorDQ
 are often used in express assessment of thief water production and water injection:

LaTeX Math Block
anchorp
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p_i - p(t) = \alpha \cdot Q^{\uparrow}_O + \beta \cdot Q^{\uparrow}_W - \gamma \cdot Q^{\downarrow}_W



LaTeX Math Block
anchorconditions
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\alpha > 0, \quad \beta > 0, \quad \gamma > 0
LaTeX Math Block
anchorPhi
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V_\phi = \frac{ 1 }{ \alpha \cdot c_t}  \cdot \frac{B_o - R_s \, B_g}{1- R_s \, R_v}
LaTeX Math Block
anchoromega_up
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\omega^{\uparrow}_W = \frac{\beta}{\alpha}  \cdot \frac{1}{B_w} \cdot \frac{B_o - R_s \, B_g}{1- R_s \, R_v}
LaTeX Math Block
anchoromega_down
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\omega^{\downarrow}_W = \frac{\gamma}{\alpha}  \cdot \frac{1}{B_w} \cdot \frac{B_o - R_s \, B_g}{1- R_s \, R_v}

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