DEVELOPMENT METHOD OF OIL-BEARING FORMATION WITH LOW-PERMEABLE COLLECTOR Russian patent published in 2009 - IPC E21B43/20 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to petroleum industry and can be used at development of oil-bearing formation with low-permeable collector. Method includes pumping-in of working substance through injection wells and oil extraction through producers. According to the invention pumping-in of working substance is implemented at a pressure and consumption, activating losses of acceleration capability of injection well. Pumping-in is stopped, it is reduced pressure on mouth of well up to atmospheric. It is implemented processing isolation up to appearance of acceleration capability and pumping-in is resumed at the same pressure up to loss of acceleration capability of injection well. Cycles "pumping-in - stop - pressure reduction - processing isolation" is recycled. Additionally pumping-in of working substance is implemented through return valve for prevention of effuse after stopping of pumping-in or shutte is closed on injection line at the moment of pumping-in stopping.

EFFECT: increasing of deposit's oil recovery.

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