DEVICE FOR SHOCK INITIATION IN WELL CUMULATIVE PERFORATORS Russian patent published in 2017 - IPC E21B43/1185 

FIELD: mining engineering.

SUBSTANCE: invention relates to a perforating equipment, namely to the means of initiating of explosive circuit of hull cumulative perforators. The device for driving the detonation comprises a body, a shock mechanism and the node initiating detonation therein. The node for detonation initiating is hydraulically isolated from the well by sealing elements and a shock mechanism is designed as a sleeve with a striker placed inside the latter and retained by the retainer therein. The housing is secured with a funnel adjustably mounted to a harmer arranged to contact with the striker of a striking mechanism, one end of which is mounted with a rubber cap and the other is arranged with sealing rings, while the locker of the hammer is formed as a cylindrical girdle.

EFFECT: invention provides increased actuation reliability and simplified firing mechanism design.

3 cl, 2 dwg