Method and apparatus for actuating a tubing conveyed perforating

Details Method and apparatus for actuating a tubing conveyed perforating Method and apparatus for actuating a tubing conveyed perforating

1987-12-03

1990-03-27

Kisliuk, Bruce M.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

With bore condition firing control, or compensating means

175 456, 166 55, 10227511, E21B 43116

Patent

active

049112511

ABSTRACT:
A firing head which is actuatable by either mechanical or hydraulic force. The firing head includes two pistons, one releasable through mechanical force, and the other releasable through hydraulic force. The first piston is secured in position until application of either an impact or an upward tension on an actuation piston. The second firing piston is responsive to hydrostatic pressure.

REFERENCES:
patent: 2719485 (1955-10-01), Bendar
patent: 4484632 (1984-11-01), Vann
patent: 4509604 (1985-04-01), Upchurch
patent: 4544034 (1985-10-01), George
patent: 4560000 (1985-12-01), Upchurch
patent: 4564067 (1986-01-01), Vann et al.
patent: 4610312 (1986-09-01), Nelson et al.
patent: 4614156 (1986-09-01), Colle, Jr. et al.
patent: 4619333 (1986-10-01), George
patent: 4629001 (1986-12-01), Miller et al.
patent: 4632034 (1986-12-01), Colle, Jr.
patent: 4650010 (1987-03-01), George et al.
patent: 4655298 (1987-04-01), George et al.
patent: 4690227 (1987-09-01), George et al.
Vannsystems Equipment--"Time Delay Firing Head", (1987).
Vansystems Equipment--"Annulus Pressure Firing Head", (1987).
Vannsystems Equipment Firer--"Releasable Annulus Pressure Firer", (1987).
Vannsystems Equipment--"Pressure Actuated Firing Head", (1987).

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