FIELD: oil production industry, particularly to perform automatic control of multipay hydrogeological well de-mudding.
SUBSTANCE: device comprises immersed pump with lift string and bypass pipeline with electromagnetic valves adapted to activate hydraulic cavitators arranged in filter of each water-carrying formation zone. Arranged in well is dynamic level meter. Flow meter, which detects extracted liquid flow rate is installed at lift string end. Dynamic level meter and flow meter are linked to comparison element. Connected to other comparison element inputs are setting units, which set minimal threshold values of dynamic level and flow rate. Comparison element output is linked to input of programmable individual point relay, which successively opens electromagnetic valves. If well yield reduces because of well mudding the electromagnetic valves successively activate hydraulic cavitators up to full recovery of water-bearing horizon and filter permeability.
EFFECT: well yield during well operation without lift string and immersed pump removal.
1 dwg
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