FIELD: oil and gas industry.
SUBSTANCE: device for simultaneous and separate operation of multiple-zone wells includes a lowering-and-lifting mechanism, a control shell and valve sleeves. The latte include a fixed sleeve with axisymmetrical grooves and a turning perforated valve sleeve with screw grooves. Upper and lower conical drums with cams are installed in the control shell. Upper cams are offset relative to lower cams through an angle equal to an angle between grooves of fixed and turning perforated valve sleeves; upper and lower springs are supported on a support washer, upper and lower drums, lower drum is connected to a rope, on which a load is installed.
EFFECT: reduction of costs for operation of multiple-zone wells due to a separate operation of zones.
3 dwg
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