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installed within the studied tend oil-bearing part of the reservoir
and the water shortage area or put isolation, the presence of the
active zone of water flow. Theoretical calculations performed
depending on the basic formula of the elastic drive. For the
coordination of theoretical and actual dependencies in formula
(3.27) is introduced coefficients z 1 and z 2 for harmonization of the
parameters of layer and formation fluid (adaptive coefficients). So,
we have

Q   r 2  
P  ,tr P  z E    z   , (3.29)

f
i
4 kh 1   4 t 2    

 kh
  

де z     theor ; z   theor .
1
2
   kh    act
   act
To find the unknown coefficients z 1 and z 2 rewrite
equation (3.29) at time t 1 and t 2
 Q   r 2  
P  ,tr 1  P f  z 1 E i    z 2  ,


 4 kh   4 t 1   

 (3.30)
 Q   r 2   
 P  ,tr 2  P f  4 kh z 1 E i   4  z 2  .


   t 2   
In general, the task of determining the change in pressure
is solved for two cases:
1) Q (t) = const;
2) Q (t) ≠ const.
If the task is solved for Q (t) = const, then use the basic
formula of elastic drive
Q , 2 25 t
 P  ln .
4 kh r 2

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