Patent ID: 7819064

Claim:
A shaped charge comprising: a shell having a frusto-conical shape wherein the shell comprises: a bottom; a top defining a ring extending into an interior of the shell; and a side wall extending between the bottom and the top and wherein a first end of the side wall engages an outer perimeter of the bottom and a second end of the side wall engages an outer perimeter of the ring defined by the top; an explosive charge disposed inside the shell; and a first liner having a frusto-conical shape for retaining the explosive charge between the first liner and the shell and wherein the first liner engages an inner perimeter of the ring defined by the top of the shell; wherein the first liner comprises at least one material selected from the group consisting of a reducing agent and an oxidizing agent; wherein the shaped charge further comprises an acid material disposed inside the shell on the first liner and retained by a second liner into the shell, the second liner comprising an encapuslating membrane for housing the acid matertial, the encapsulating membrane comprising: a frusto-conical outer membrane; and an inner membrane having an inner membrane bottom comprising a conically shaped bottom having a peak that is pointed toward a jetting direction.