FIELD: gas-and-oil producing industry.
SUBSTANCE: well unit consists of pressure unit of high pressure, of oil-well tubing - OWT, of setting unit with pocket equipped with at least one through orifice and at least one bypass channel, of controller positioned in pocket of setting unit and equipped with at least one through orifice, at least one bypass channel and at least one chamber of specified pressure interacting with locking device, and of at least one packing element arranged on controller and designed to seal through orifice and bypass hydraulic channel passing along the OWT or inside the OWT and pressure tight connecting pressure unit of high pressure with pocket of setting unit. The controller of fluid output consists of a piston chamber with at least one through orifice and a locking device in form of a piston and a seat with a connecting branch, of a bellows chamber with at least one through orifice and a locking unit in form of a gate and a seat, and of at least one bypass channel hydraulically communicated with through orifices of the piston and bellows chambers and designed to control flow of well fluid from the OWT into annular space or vice versa by means of the gate and the connecting branch. Also, the controller has a connecting channel hydraulically tied with through orifices of the piston and bellows chamber to perform separate pass of working substance into them. The well chamber consists of a casing and of a pocket, containing the controller of fluid output with the bellows and piston chambers of specified pressure and with a connecting channel. The pocket is made with internal borings, with at least one setting surface, with at least one bypass channel located in the pocket or in the casing and in the pocket to control volume of well fluid flow through it from tubular space of the OWT or vice versa, and with at least one through orifice on setting surface or between setting surfaces to supply working substance into one of the chambers of specified pressure and into the connecting channel hydraulically tied with through orifices of both chambers for separate pass of working substance into them.
EFFECT: simplified process operations for on-line control of well; efficient operation of well under reliable and optimal mode.
24 cl, 3 ex, 10 dwg
