METHOD OF DEVELOPING OIL DEPOSIT Russian patent published in 1999 - IPC

FIELD: oil and gas production. SUBSTANCE: invention, in particular, relates to high- nonuniformity oil deposits. Working fluid consisting of dispersion of fibrous disperse system in alkali solution with pH up to 11 and alkali solution of molecular colloid with pH up to 11 at volume ratio from 1: 1 to 1:10, respectively, is injected through injecting wells. Simultaneously oil is extracted through producing well. When preparing alkali solution of molecular colloid, water-soluble cellulose derivatives are utilized. EFFECT: increased efficiency of leveling profiles of intake capacity of injecting wells and increased oil production of deposit. 2 cl, 3 ex