APPLICATION EXPERIENCE OF MICROGEL POLYMER SYSTEMS IN TATARSTAN REPUBLIC FIELDS
One of the lines of diverter technologies development is enhanced oil recovery methods based on microgel polymer compositions. An advantage of microgel composition is that microgel polymer systems are characterized by high penetrating ability in porous media that allows changing formation fluid flows. The paper presents PAO TATNEFT experience of application of microgel polymer systems in conditions of high water cut and permeable heterogeneity of multi-zone reservoirs. One of case studies are presented, microgel polymer mechanism is explained. Enhanced oil recovery is achieved through improvement of reservoir sweep and diverting of fluid flows resulting from plugging of high permeability formation zones.