METHOD AND DEVICE FOR WATER PRODUCTION FROM DEEP ARTESIAN WELLS Russian patent published in 2007 - IPC E03B3/10 

FIELD: water intake structures, particularly obtaining and confining water by means of pit wells.

SUBSTANCE: water production device comprises casing pipe provided with disc valve and with perforated filter arranged in lower part thereof. Upper casing pipe part has steel bottom with pressure relief valve adapted to reduce pressure inside casing pipe and compressed air inlet pipe having valve. The valve is connected with receiver and with air compressor. Connected to disc valve is air-tight removable plug having cable fastened to the disc valve to provide manual valve opening in the case of valve seizure. Pipe with water displacement valve is installed in the casing pipe and extends for the full casing pipe length. The pipe has check valve and shutoff valve located at well outlet. Method for water production from artesian well with the use of above device involves filling casing pipe with water portion under dynamic artesian horizon level pressure; activating compressor; filling the receiver with compressed air; supplying compressed air into casing pipe under pressure corresponding to summary height of well and water tower; displacing water from casing pipe into water tower; closing compressed air inlet valve; venting air from casing pipe through pressure relief valve, which is closed after air discharge operation termination and continuing above filling-displacement operations.

EFFECT: increased reliability and pressure without the use of submersible pump provided with electric motor.

2 cl, 1 ex, 1 dwg