PROCEDURE FOR WELL DEVELOPMENT Russian patent published in 2011 - IPC E21B43/00 

FIELD: oil and gas production.

SUBSTANCE: at development of well pressure is periodically sunk without shutdown of immersed pump station and filtration equilibrium mode is periodically restored. Well space between interval of perforation and pump equipment is preliminary and temporarily disconnected into an upper and lower one to create periodical pressure sink without shutdown of the immersed pump station. Thus flow of liquid into the well stops and pressure is equalised in borehole environment. By withdrawing liquid with pump from upper space of the well above the place of disconnection there is created pressure sink in well. At restoration of the equilibrium mode of filtration upper and lower space of the well are connected creating rapid pressure sink in borehole environment and rapid restoration of liquid flow into the well. Fluid is continued to be withdrawn with the pump.

EFFECT: increased efficiency of procedure due to reduced production watering.

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