METHOD FOR OIL DEPOSIT DEVELOPMENT Russian patent published in 2008 - IPC E21B43/16 

FIELD: oil production, particularly to develop oil deposits confined to non-uniform porous fractured, fractured porous and fractured reservoirs, for instance carbonate ones.

SUBSTANCE: method involves setting periodical operation regimes of well having high displacing liquid content in product; producing oil via producing wells; determining oil content in well product and recording pressure recovery curve in said wells. In the case of deposit development with porous carbonate blocks producing well clusters are formed so that injection well is arranged in cluster center and injection well or wells are in depressed structure zone relatively producing ones. Then injection well is operated in steady-state regime and well response is recorded. Periodical well operation regime is set after production well response recording to provide it by periodic liquid removal at injection well or injection wells by alternating activating/deactivating of latter wells to obtain stable reservoir pressure increase in well area surrounding injection well. Then water is discharged in area characterized by decreased reservoir pressure or outside deposit.

EFFECT: decreased water content in well product and increased oil recovery from porous blocks of carbonate reservoirs.

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