CONTROL METHOD OF OIL POOL DEVELOPMENT Russian patent published in 2014 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: method includes allocation of a pool area with wells intercoupled hydrodynamically, extraction of the product from producers with production rate analysis, injection of a displacement agent to injectors with definition of well interference contours and correction of the production rate for the producers. According to the invention production rate analysis and injection of a displacement agent to injectors is made on the basis of detected intercoupling with the respective producers against their total production rate at actual operation at the allocated areas using archive databases and current data for the whole optimisation period with increment of 1-3 months. By production rate control in the producers the volume of injection to the injectors is changed and redistributed considering impact of the respective producers and injectors. At that the total volume of injection is changed not more than per 10%. Remaining reserves are worked out using the available stock of wells with increase of total production rate of the producers and decrease in water cut or maintenance of this value at the current level.

EFFECT: reduction of water content in the producers and increase of oil production rate without additional costs for recompletion at minimum permitted increase of injected volumes.

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