Hybrid capsule charge

Details Hybrid capsule charge Hybrid capsule charge

1996-07-22

1997-09-02

Miller, Edward A.

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

175 46, 102306, 568931, F42C 1000, E21B 2900

Patent

active

H00016756

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.

REFERENCES:
patent: 3755471 (1973-08-01), Dacons
patent: 4739839 (1988-04-01), Regalbuto et al.
patent: 4832134 (1989-05-01), Gill
patent: 4861924 (1989-08-01), Riggs
patent: 4998477 (1991-03-01), Barker
patent: 5107929 (1992-04-01), de Cardenas

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