Firing head for a perforating gun assembly

Details Firing head for a perforating gun assembly Firing head for a perforating gun assembly

1989-09-01

1990-11-13

Britts, Ramon S.

Wells

Processes

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

166 55, 175 452, 175 454, 102319, E21B 43117

Patent

active

049695258

ABSTRACT:
A hydraulically actuated firing head for a tubing conveyed well perforating system includes an actuating piston responsive to a differential between tubing pressure and a sealed low pressure zone contained within the firing head. The actuating piston releases a firing piston which initiates a firing sequence.

REFERENCES:
patent: 4509604 (1985-04-01), Upchurch
patent: 4523643 (1985-06-01), McGlothen
patent: 4531590 (1985-07-01), Peterson
patent: 4648470 (1987-03-01), Gambertoglio
patent: 4836109 (1989-06-01), Wesson et al.
patent: 4862964 (1989-09-01), George et al.
Exhibit A--Vann Systems Engineering Well Completion Product Catalog No. VS-0001, pp. TCP-1001, TCP-1011, TCP-1013, TCP-1022, TCP-1014, TCP-1016, TCP-1020 and TCP-1018, published by Vann Systems of Houston, Texas, a division of Halliburton Company.

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