Hybrid capsule charge

Abstract

An improved capsule-type charge for use in perforating high temperature production zones in oil or gas wells is disclosed. The improvement consists of using a secondary initiating compound as an initiator, such as 1,3,5-Trinitro-2,4,6-Tripicrylbenzene or 2,2',2",4,4',4",6,6',6",-Nonanitroterphenyl. These initiators work well with commercially available high temperature explosives, such as PYX.

We claim: 
     
       1. Secondary booster compound for use with high temperature explosives in capsule charges, said secondary booster compound being selected from a group consisting of: 1,3,5-Trinitro-2,4,6-Tripicrylbenzene, and,   2,2',2",4,4',4",6,6',6",-Nonanitroterphenyl.   
     
     
       2. A method of perforating a high temperature production zone of a oil or gas well, comprising: inserting at least one capsule charge into said well proximate said zone, said charge comprising: a high temperature explosive; and,   a booster selected from the group consisting of: 1,3,5-Trinitro-2,4,6-Tripicrylbenzene; and,   2,2',2",4,4',4",6,6',6", -Nonanitroterphenyl; and,       detonating said charge.