Air chamber actuator for a perforating gun

Details Air chamber actuator for a perforating gun Air chamber actuator for a perforating gun

1993-03-11

1994-04-12

Britts, Ramon S.

Wells

Processes

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

166299, 175 456, E21B 2900, E21B 4311

Patent

active

053017552

ABSTRACT:
A firing head actuator for a perforating gun includes an atmospheric pressure chamber which is run into the well on a slick line. The atmospheric pressure chamber can then be communicated with a low pressure side of an actuating piston to move the piston and initiate firing of the perforating guns. Either pyrotechnic or electrical time delays may be built in to the firing head actuator.

REFERENCES:
patent: 4509604 (1985-04-01), Upchurch
patent: 4560000 (1985-12-01), Upchurch
patent: 4616718 (1986-10-01), Gambertoglio
patent: 4760884 (1988-08-01), Haugen et al.
patent: 4924952 (1990-05-01), Schneider
patent: 4969525 (1990-11-01), George et al.
patent: 5161616 (1992-11-01), Colla
patent: 5167282 (1992-12-01), Schneider et al.
Engineered Well Completion Product Catalog of Vann Systems, pp. TCP-1018, 1020, 1022, and 1028 (Undated but admitted to be prior art).
Otis Products and Services Catalog OEC 5516 (1989), p. 94.
U.S. Patent Application Ser. No. 07/868,832 of Schultz et al., entitled SHUT-IN TOOLS, filed Apr. 14, 1992.

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