Technology using polymer-dispersed systems (PDS) with selective action and aimed at enhanced oil recovery of non-homogeneous terrigenous and carbonate reservoirs.
The technology has all the necessary licenses and permits
The mechanism of the PDS action is based on the formation of polymer-mineral complexes in the high permeable and flooded zones of the reservoir, which enables redistribution of filtration flows by area and section of the treated bed part and an increase in reservoir volumetric efficiency. The unique technology mechanism ensures its constant demand which increases when the fields reach the later stage of development.
Polymer-dispersion systems are the main enhanced oil recovery methods based on increasing filtration resistance of the flooded areas of the reservoir saturated with oil and water. To extend the technology's application, a number of modified PDSs have been developed, etc. In various geological and physical conditions of reservoirs, this allows the efficiency of the technological impact to increase by 25-50% in comparison with basic PDS technology.
The technology has been implemented in the fields of the Volga-Urals, Western Siberia and Kazakhstan.
More than 6 mln additional tons of oil have been recovered. The specific technological effect is 3,000 tons per well operation.
Effect duration: more than 2.5 years.
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