FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil industry and can be applied in dual operation of two strata in the same well. The installation contains a flow column located in the well casing thus forming tubular annulus, a packer, a submersible electric centrifugal pump, an electrical submersible cable passing through the packer and a regulating closing and bypass device in a cylindrical body installed in the packer and limited at butt ends by sleeves for cross flows of strata fluids. The body of the device is connected by its upper sleeve to the flow column at the level above gravel and sand filler in the tubular annulus above the packer. By its lower sleeve the body is connected to the pump through a sleeve adapter. In the upper sleeve there is an opening with a nipple installed in it resting upon the edge of a socket made in the lower sleeve which forms with the body a channel for fluid passage from the sleeve adapter to the flow column through longitudinal channels inside the sleeves and to this end two pairs of lip-type seals are installed at the nipple. In the nipple there is a needle valve with electric drive. In the nipple there are windows communicating with radial channels of the upper sleeve through the groove made from outside the nipple at the window level for fluid extraction depending on pressure drop in strata.
EFFECT: excluding effect of the upper stratum depression with possibility of regulation.
6 cl, 1 dwg
