Punches are pipe

Designs of all let-out punches are protected by patents of the Russian Federation.

Punches the PTM type 16 mm in walls of NKT and upsetting trub60 are intended for a punched hole of openings 8 …... 168 mm of domestic and import production which are in a well for the purpose of the message of their cavity with annular space. The received opening allows to restore circulation of liquid in practice of repair and development of wells, to prevent raising of pipes with liquid, to carry out a dozalivka of a cement ring behind an upsetting column, to increase productivity, culture of production, safety of work at repair of wells, to reduce environmental pollution.

Punches are made in several executions: usual - To, for work in gas environments - for work at depths of 3000-6000 m - VD.

Descent of a punch in a well is carried out on a wire, a cable, a column of lengthy bezmuftovy pipes, free dropping.

As a power source for a punched hole of pipes potential energy of a column of liquid in pipes and pressure of the pump unit is used.