Methods and apparatus for selectively operating multi-charge wel

Details Methods and apparatus for selectively operating multi-charge wel Methods and apparatus for selectively operating multi-charge wel

1978-02-21

1980-06-24

Brown, David H.

Ammunition and explosives

Igniting devices and systems

102 216, 175 455, 175 40, 340858, 346 33WL, E21B 43116, G01R 3102

Patent

active

042089662

ABSTRACT:
In the representative embodiments of the new and improved methods and apparatus disclosed herein for controlling multicharge perforating guns or core-sampling guns, the gun-control system of the present invention includes a selectively-operable multi-contact switch assembly operative from the surface to sequentially connect a group of electrically-detonatable charges into a firing circuit for consecutively firing the charges on the gun. An array of serially-connected Zener diodes cooperatively associated with the switch assembly provides indications at the surface showing which of the several charges is then connected into the gun-firing circuit. The new and improved gun-control system also includes a shot-monitoring system which provides additional surface indications from which it can be determined whether the charges on the gun are being successfully fired and, at least approximately, that they are being consecutively fired.

REFERENCES:
patent: 2349041 (1944-05-01), Hare
patent: 2677790 (1954-05-01), Arps
patent: 2755432 (1956-07-01), Arps et al.
patent: 3028528 (1962-04-01), Ghiselin, Jr.
patent: 3202227 (1965-08-01), Ezran
patent: 3495212 (1970-02-01), Brock
patent: 3860865 (1975-01-01), Stroud
patent: 4051907 (1977-10-01), Estes

Affiliated with

Also associated with

Rating

Methods and apparatus for selectively operating multi-charge wel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for selectively operating multi-charge wel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for selectively operating multi-charge wel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1476796