FIELD: oil and gas industry.
SUBSTANCE: device includes a reagent tank and dosing pump interconnected with it and having its own drive and control system. Device is placed inside the well below oil-extracting equipment. Power is supplied to dosing pump drive from battery of electrolytic cells located in air-tight cavity of the device.
EFFECT: effective reagent supply; higher protection reliability of the whole submersible unit.
6 cl, 4 dwg
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