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gas cap, which also increases total length of drainage boundary
and length of the outer rows of producing wells.
In practice, the method selected to maintain reservoir
pressure depends on geological conditions and economic
considerations.
Laboratory experimental researches of oil displacement
by water hold in the models of the reservoir and the shown at Fig.
4.1.

1- zone, where is occupied water and residual oil; 2 – WOC; 3 –
zone, that is occupied by oil; 4 - accumulations of oil remaining
behind WOC
Fig. 4.1 – Scheme of movement WOC in layer under: а)
 0 = 15; b)  0 = 2030

Development system what is carrying out by pumping
water into the reservoir helps to:
a) increase oil production and accelerate the process of
development of the field;
b) preservation of stable oil-dominated than the fountain
method of operation of oil wells for a long period;
c) increase of the final oil recovery factor for a cost
effective generic term of its development;
d) reduction of capital expenditures;
e) increase productivity;
f) reduce the cost of oil.
Waterflooding is carried to increase the oil recovery
factor and to intensify the development process. When we decide

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