LINER PACKER HANGER, HYDRAULIC DRIVE OF ANCHOR LINER PACKER HANGER, PISTON OF LINER PACKER HANGER, HYDRAULIC DRIVE ASSEMBLY OF LINER PACKER HANGER Russian patent published in 2018 - IPC E21B43/10 E21B33/14 E21B33/12 

FIELD: machine building.

SUBSTANCE: group of inventions relates to a hydraulic cemented liner packer hanger, hydraulic drive of anchor of liner packer hanger, liner packer hanger hydraulic drive piston, liner packer hanger hydraulic drive unit. Liner hydromechanical cemented packer hanger contains nonremovable and removable parts. Non-removable part includes a lower sub with a running down plug installed in it and connected via a sleeve to the case of a packer-hanger, on which the anchor assembly and the mechanical packer assembly with the pusher and the pressure sleeve are successively mounted. Removable part includes a disconnection assembly of the transport column with a liner packer hanger, a drive assembly of the drive sleeve of the packer, the upper sub in the form of a nozzle, detachable supplemented in the upper part of the coupling, made in turn with the possibility of detachable connection of the packer hanger to the transport column. Anchor assembly contains a coupling mounted on the case of the packer hanger, endowed with a system of anchor elements having each toothed plate with a holder, an intermediate movable cylindrical conical annular element of the anchor hydraulic drive and a power device of the anchor hydraulic actuator. Case of a cylindrical-conical element of the anchor hydraulic actuator includes an annular wedge made in a single manner and a cylindrical part intended for transmission from the piston to the wedge and then to the dies of the armature elements of the force impulse for anchoring.

EFFECT: technical result is improved operation reliability.

8 cl, 6 dwg