Perforating gun detonator package incorporating exploding foil

Abstract From the Canadian patent

This disclosure is directed to a perforating gun assembly. It incorporates an elongate body which supports a capacitive discharge firing unit having the form of an elongate cylinder terminating at the lower end with a feedthrough. The feedthrough, protected by a resilient boot connects with a very, short coaxial cable stored in a chamber. At the bottom of the chamber, the coaxial cable connects with a detonator head. It is an elongate cylindrical structure. It encloses and protectively houses the end of a detonating cord. On the interior it supports, an electric pulse initiated flying disk detonator mechanism. The structure is constructed to suppress inductance in the firing circuit from …