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Figure 3.6 - The dependence of oil production from the
number of wells

The relationship between the number of wells and the
summary liquid production is nonlinear. When the number of
wells may come a time when increasing the number of wells does
not increase production. Then for increasing oil production need to
change the operating conditions of wells that change bottom-hole
pressure.
Calculation validities are based on data on the flow rates
of wells. Full validity consists of separate validities of
displacement calculation WOC from its initial position to the line
of the first row of wells, from the line the first row of wells to the
line of the second row of wells, and etc.
Time displacement of the oil-bearing path from one
position to another is given by the formula
Q 1
t  res . , (3.13)
 Q i 1 n w
i n 100
where Q res. - recoverable oil reserves in the area of the substitution
of oil with water, determined by the Zhdanov‟s formula; Q i - the
total flow rate of all wells operating at a given time; n w – water-
cut, %.

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