PERFORATING GUN AND DETONATOR ASSEMBLY Russian patent published in 2018 - IPC E21B43/11 E21B43/1185 F42B3/10 

FIELD: construction.

SUBSTANCE: group of inventions refers to a downhole gun and a detonator unit for downhole tools in a wireless configuration. Selective detonator block of the hole perforator is located inside the hole perforator block without the use of a wired electrical connection. It contains a detonator shell, configured to accommodate the ignition head and the electronic circuit board inside it. This board is connected to the ignition head and is designed to provide a selective detonation of the detonator unit. Detonator head protrudes from one end of the detonator shell and comprises an input-connected linear portion having an electrical contact. Output linear part has the possibility of electrical contact. There is an insulator located between the input linear part and the output linear part and electrically insulating them from each other. Has a grounding part that has an electrical contact. This part in combination with the input line part and the output linear part is configured to replace the wiring electrical connection and provide an electrical connection by simple contact. In this case, the detonator unit is arranged to be positioned, while allowing electrical connection, within the detonator positioning unit in the down hole punch unit without the use of a wired electrical connection and selectively receiving an incendiary signal to initiate the perforating unit.

EFFECT: increase the reliability and safety of the group of devices.

20 cl, 6 dwg