Transfer apparatus adapted for transferring an explosive train t

Details Transfer apparatus adapted for transferring an explosive train t Transfer apparatus adapted for transferring an explosive train t

1991-06-27

1992-06-23

Johnson, Stephen

Ammunition and explosives

Igniting devices and systems

Holders for fuse or fuse cord to blasting cartridge,...

10220214, 1022754, 1022756, 10227511, C06C 506

Patent

active

051233568

ABSTRACT:
A transfer unit is sealingly connected to a pressure tight housing. The pressure tight housing includes a detonator and electronics circuits connected to the detonator, the pressure tight housing being adapted to be disposed in a well apparatus situated in a wellbore. The wellbore contains fluids at high temperature and pressure, and the pressure tight housing protects the detonator and electronics from the severe temperature and pressure of the wellbore fluids. The transfer unit receives, on one end, the detonator and, on the other end, a separate detonating cord which is adapted to be connected to another separate explosive device and includes a pressure proof housing and a matrix of secondary explosive disposed in a compressed condition within the pressure proof housing between the detonator and the detonating cord, the matrix of secondary explosive functioning like a transversely disposed bulkhead or barrier for protecting the detonator and associated electronics from the severe temperature and pressure of the wellbore fluids which exists adjacent the detonating cord. Although the secondary explosive bulkhead is compressed within the pressure proof housing, the detonating cord may penetrate the secondary explosive bulkhead in response to the high pressure of the external wellbore fluids. Therefore, in order to prevent this penetration, the pressure proof housing includes a neck down portion disposed peripherally around the secondary explosive bulkhead in order to further compress the secondary explosive and to prevent the detonating cord from penetrating the secondary explosive bulkhead in response to the high pressure of the wellbore fluids.

REFERENCES:
patent: 697842 (1902-04-01), Hoover
patent: 1719065 (1929-07-01), Mallet
patent: 2253549 (1941-08-01), Barton
patent: 2739535 (1956-03-01), Rolland et al.
patent: 3008411 (1961-11-01), Conrad
patent: 3082689 (1963-03-01), Griffith et al.
patent: 3212439 (1965-10-01), Reyne
patent: 3244103 (1966-04-01), Spickard
patent: 3401632 (1968-09-01), Griffith et al.
patent: 3831522 (1974-08-01), Romney
patent: 4248152 (1981-02-01), Yunan
patent: 4649822 (1987-03-01), Seeman
patent: 4716832 (1988-01-01), Sumner
patent: 4762067 (1988-08-01), Barker et al.
patent: 4998477 (1991-03-01), Barker
patent: 5009163 (1991-04-01), Robins et al.

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