Perforation gun pressure-actuated electrical switches and...

Details Perforation gun pressure-actuated electrical switches and... Perforation gun pressure-actuated electrical switches and...

2011-03-08

2011-03-08

Friedhofer, Michael A (Department: 2833)

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

C200S08200C

Reexamination Certificate

active

07902469

ABSTRACT:
Pressure-actuated electrical switches are provided that comprise a housing having a slidable piston therein. The slidable piston slides from a first position to a second position and in so doing switches an electrical path from a first electrical contact and a second electrical contact to an electrical path between the first electrical contact and a third electrical contact. Suitable applications of such switches include any application in which a pressure wave is used to actuate an electrical switch. The pressure-actuated electrical switches of the present invention are especially adapted for use in controlling successive detonations in a downhole perforation gun, as explosive gases and pressure waves are used to actuate the slidable piston so as to trigger a subsequent detonation charge. Perforation guns utilizing these pressure-actuated electrical switches and corresponding methods of use are also provided herein.

REFERENCES:
patent: 2381081 (1945-08-01), Schlumberger
patent: 4007796 (1977-02-01), Boop
patent: 4100978 (1978-07-01), Boop
patent: 4234768 (1980-11-01), Boop
patent: 4306628 (1981-12-01), Adams et al.
patent: 4339638 (1982-07-01), Lascelles et al.
patent: 4457383 (1984-07-01), Boop
patent: 4852494 (1989-08-01), Williams
patent: 5034683 (1991-07-01), Takahashi et al.
patent: 5042594 (1991-08-01), Gonzalez et al.
patent: 6035880 (2000-03-01), Gazda
patent: 6220370 (2001-04-01), Wesson et al.

Affiliated with

Also associated with

Rating

Perforation gun pressure-actuated electrical switches and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Perforation gun pressure-actuated electrical switches and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perforation gun pressure-actuated electrical switches and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2779171