PROCEDURE FOR DEVELOPMENT OF OIL DEPOSIT Russian patent published in 2010 - IPC E21B43/20 

FIELD: oil and gas production.

SUBSTANCE: extracted production is withdrawn through producers; working agent is pumped via pressure wells at operating pressure and consumption. Formation water purified to presence of solid suspended particles of not more 60 mg/l and oil emulsion not more 50 mg/l are used as working agent. When intake capacity drops, because vicinity of borehole of the pressure well has been mudded with solid suspended particles and oil emulsion, pressure of pumping is raised. Water without mudding substances is pumped into the pressure well at raised pressure facilitating well intake in volume sufficient for distribution of mudding substances in formation and sufficient for increase of intake capacity of the pressure well. At continuous pumping working agent is pumped with anew set working pressure and consumption.

EFFECT: increased recovery of oil deposit.

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