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Q oil  а  b Q fl ; (7.7)

Q  а  b ; (7.8)
oil
Q fl
Q oil=a+bq oil/q w; (7.9)
Q oil=а+blnQ fl; (7.10)
Q oil=а+blnQ w; (7.11)
Q w=a+bln(q w/q oil); (7.12)
where Q oil , Q fl , Q w - accumulated oil, fluid and water production;
q oil , q w - year production oil and water; a, b - statistical
coefficients.
Integral characteristics water-oil displacement (7.6),
(7.7) and (7.10) are the most simple and convenient, those in the
processing of data to determine the effectiveness of hydrodynamic
action. Characteristics of water-oil displacement (7.9), and (7.12)
are differential. They include the following values: current
production, water cut.
The coefficients a and b are determined by statistical
data processing from the system of equations
  nay  b  ,x
 2
  xy  a   bx  x . (7.13)
Where

b     nxy  xy ;
2
 x   n  y 2

a   xy b  x 2 .
 x
In this case, the prediction of the expected oil
production will hold through arithmetical selection dependence,
corresponding to actual dependence accumulated oil production
from an accumulated fluid. The initial input data are:

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