RESEARCH OF EFFICIENCY OF USAGE OF LARGE-VOLUME MARGINS OF POLYMER SOLUTION DEPENDING ON OIL RESERVES EXTRACTION OUT OF TWO-STRATA SYSTEM OF COLLECTORS
Numerical research of polymer water-flooding by large-volume margins of polymer solutions under various injection modes proves the fact that efficiency of this polymer effect method is remarkably low than that one envisaging constant polymer water-flooding. Maximum growth of oil recovery coefficient makes 0.05 units fraction relative to basic variant. Herewith, maximum growth of final oil recovery coefficient is reached during latest performance of polymer water-flooding (the value of starting water-flooding is maximal). However, latest injection of large-volume margins of polymer solution brings minimal decrease of water production.