METHOD FOR DEVELOPMENT OF OIL DEPOSIT Russian patent published in 1997 - IPC

FIELD: oil production industry. SUBSTANCE: this relates to development of multiple-bed oil deposit. According to method, before performing hydraulic isolation of oil bed in producing wells, performed is hydraulic isolation of high-permeable intervals of similar oil beds in injection wells by injecting portions of suspension of rubber crumbles on base of polymeric solution under pressure of opening fissures in bed with subsequent increased ratio of rubber crumbles in each followed portion of injected solution depending on viscosity of bed oil. Proportion in first portion is equal to 1: 3. Injection of portions is discontinued after sharp dropping of injectability of oil bed. Then well is flushed. After performing entire set of operations in producing wells, injection wells are brought into operation at pressure lower than injection pressure. EFFECT: high efficiency. 1 cl