Lock-type device with 5⅛ʺ wellhead packer

The device of the gateway type with wellhead packer 51/8ʺ inch intended for sealing the pipe channel of the suspension tubing (Cameron), "SSMC" Assembly of wellhead valves 18-3/4ʺ R/d 5000 psi, below the side-wall of an unit replacement operational gate valve, type "FC" (side unit) and repairing of roof sets of double block valves 18-3/4ʺ 5000 psi, gas and oil wells under pressure, including content in the downhole environment of hydrogen sulfide in an amount up to 6% volumetric. A distinctive feature of the device of the gateway is: - minimal insertion force of the packer in the well bore; - introduction to the design of packer backing plate with a force sliding in the radial direction of the segments, all the way into the wall of the passage channel wells to eliminate the annular gap between the packer and through the channel of the well.