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1 – producing wells; 2 – injection wells
Figure 4.4 - Block systems of development
Focal flooding. Focal flooding is used as a supplement to
the already undertaken inside contour flooding or edge flooding
and aims at strengthening already carried out a system of
development. Injection wells located in areas with a layer of a
relatively low production flow rate of wells. In some cases, when a
good understood geological structure of the reservoir focal
flooding can be used as an independent system of development.
For this flooding possible drilling one injection well or group of
injection wells (Fig. 4.5). Focal flooding was first used in the
fields of Tatarstan.
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