DRILLING PUNCHER WITH TURNING MECHANISM OF THE WORKING PART Russian patent published in 2018 - IPC E21B43/112 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas producing region. Perforator consists of a system for fixing the perforator to the wall of the borehole, a boring bit, a curvilinear guide for the drill with a drill bit hydraulic cylinder combined into one electrohydraulic system, which includes an uncontrolled pump connected to the filter, a safety valve designed to discharge the pump, with the first discrete distributor with electromagnetic control associated with the accumulator through the first non-return valve, which is connected to a second discrete distributor with electromagnetic control associated with the rod cavities of the first and second locking cylinders, with the rod cavity of the third hydraulic cylinder of the drill feeder, which is connected to the third discrete distributor with electromagnetic control, with a fourth discrete distributor with electromagnetic control and a fifth discrete distributor with electromagnetic control connected through a second check valve. Hydraulic cylinder of the drill feeder is designed in such a way that it ensures the extension of the drill by 700 mm, the fourth electrically controlled solenoid valve with electromagnetic control is connected to the first hydraulic motor with a drill through a sixth solenoid valve with electromagnetic control, which is connected to the seventh discrete distributor with electromagnetic control connected to the second hydraulic motor, which is responsible for the turn of the platform, and to a flow controller which is connected to the third discrete distributor with electromagnetic control via the first pressure reducing valve, the fifth discrete solenoid valve with electromagnetic control is connected to the piston cavities of the first and second locking cylinders via a second check valve, filter, safety valve, second solenoid valve with electromagnetic control, the third discrete distributor with electromagnetic control, the fifth discrete distributor with electromagnetic control, the seventh discrete distributor with electromagnetic control and the first hydraulic motor are connected to the tank.

EFFECT: intensification of oil inflow to the well is provided.

1 cl, 1 dwg