METHOD FOR DEVELOPMENT OF NONUNIFORM OIL FORMATION

摘要

FIELD: oil-producing industry; may be used in cyclic waterflooding of nonuniform oil formations. SUBSTANCE: method includes cyclic injection of mixture of polymer with water into injection wells and withdrawal of products from producing wells. The next cycle of injection of mixture of polymer and water is carried out after attainment of viscosity of mixture of polymer and water equalling to that in the previous cycle. EFFECT: higher efficiency.