Boring or penetrating the earth – Boring with explosion in inaccessible hole – Firing control mechanically actuated in bore
Patent
1978-09-18
1980-09-02
Novosad, Stephen J.
Boring or penetrating the earth
Boring with explosion in inaccessible hole
Firing control mechanically actuated in bore
89 1C, 175 457, 175 46, 340669, 340857, E21B 43116, E21B 43117
Patent
active
042202124
ABSTRACT:
In the representative embodiment of the new and improved apparatus disclosed herein for monitoring the operation of perforating guns or core-sampling guns carrying one or more electrically-detonatable charges, an impact-actuated monitoring assembly operatively arranged on the body of the gun includes a motion-responsive switch and solenoid device that are connected to the electrical firing circuit of the gun. As the explosive charges connected to the gun-firing circuit are actuated, the new and improved monitoring assembly of the present invention is effective for cyclically varying the impedance of the firing circuit to provide a series of distinctive surface indications showing that the gun has been successfully fired.
REFERENCES:
patent: 2349041 (1944-05-01), Hare
patent: 2429240 (1947-10-01), Schlumberger
patent: 2732518 (1956-01-01), Bricaud
patent: 2871784 (1959-02-01), Blair
patent: 3202227 (1965-08-01), Ezran
patent: 3327791 (1967-06-01), Harrigan, Jr.
patent: 3495212 (1970-02-01), Brock
Novosad Stephen J.
Schlumberger Technology Corporation
LandOfFree
Apparatus for monitoring the operation of well bore guns does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for monitoring the operation of well bore guns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for monitoring the operation of well bore guns will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1705120