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Q
F ( ) oil , accordingly, if we know the content of oil in
2
Q oil Q w
wellbore fluid, we can determine the water content, in other words
water cut n w,
n w=1-F 2(æ).
In order to determine the auxiliary functions F 1(æ) and
F 2(æ), we need to integrate the auxiliary function n 1(æ). Then, as a
result of the calculations, plotting the following graphic
dependencies (Fig. 5.5).
Figure 5.5 - Graphic dependencies oil recovery and water
cut from æ
When we solving the problem where the reservoir
represented by the section from the initial oil-water contact
position to the line of wells of the first row, sweep efficiency can
be estimated as:
F
k 1 i .
SE
i
97
