Mechanism for Selective Permeability Control of Non-Uniform Strata of Oil Fields

IOR-99 MECHANISM OF SELECTIVE REGULATION OF OIL FIELD HETEROGENEOUS RESERVOIRS PERMEABILITY Ye.V. LOZIN V.N. KHLEBNICOV DOOO “Bashkir Research and Design Institute of Oil” Ul. Lenina 86 450077 Ufa Russia fax: (3472)-223335 phone: (3472)-239601 e-mail: [email protected] The basic enhanced oil recovery method in Russia is flow-deflecting technologies the action of which is leveling of oil displacement front from oil reservoirs. The given enhanced oil recovery technologies are effective both at late and final stages of oil field development. Gel- and precipitate-forming compositions [1] cross-linked polymer systems [2] and polymerdispersed systems on the basis of clay arboreal dust etc. [3 4] are