FIELD: construction.
SUBSTANCE: packer device comprises a tubular body fixed on a tubing with the following components concentrically installed outside - a spring and an elastic sealing element, the spring is made of an alloy having hyperelasticity or from an elastic material, and with its one end it is connected to a stop fixed on the body, and with its other end - to a support bushing, concentrically installed on the body with the possibility of displacement. The spring has a shape of a coil with a cylindrical central part and end parts with wider diameter. The body is installed in the well only until the packer setting is over. The sealing element is a hollow tubular chamber, which contains reinforcement inside that does not prevent its deformation, and the chamber is filled with a mortar that hardens with time. The packer device additionally comprises a pump, a piston group and a pusher with a lever, the group cylinder is connected to the body, and by means of tubing - to the pump, there is a longitudinal hole in the support bushing wall, the stop is a lever fixed on the body at the angle to the radial direction, opposite ends of the spring are bent in direction that is longitudinal to its axis, and prior to packer setting one of these ends is arranged with an allowance in the support bushing hole, and the other rests against the support lever at its inclined side, outside the tubular chamber is coated with a plastic mass.
EFFECT: expansion of the functional capabilities of the packer device, improves throughput capacity of the repaired well tubing.
2 cl, 3 dwg
