METHOD OF RESERVOIR EXAMINATION Russian patent published in 2010 - IPC E21B47/10 E21B43/20 

FIELD: gas-and-oil industry.

SUBSTANCE: water is pumped through pressure wells, and product is withdrawn via producers. There are performed primary tracer examinations for revealing filtering channels connecting pressure wells with producers. Further, they are backfilled with insulating material. Water pumping into pressure wells is resumed. Notably, a tracer agent different from the tracer agent used for primary tracer examinations is additionally introduced into compatible flow deflecting compositions and solutions of chemical reagents forming insulating material. Direction of inflow of flow deflecting compositions and solutions of chemical reagents, efficiency of their effect to a reservoir and stability of insulating material in time are determined by results of control over composition of extracted production from producers and over contents of tracer elements in it.

EFFECT: increased efficiency of operations for oil output of reservoir at development of oil deposits.

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