Firing head for a tubing conveyed perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

175 456, 166297, 166 551, E21B 4317

Patent

active

046167188

ABSTRACT:
A firing head for a tubing conveyed perforating gun is shown which is operated by pressuring the interior of the tubing string. A sliding sleeve having a pressure responsive seal area changes position at a predetermined increase in tubing pressure. As the sleeve changes position, the production ports of the tool are first opened, allowing communication between the well annulus and the tubing interior. Movement of the sliding sleeve also drains an initially filled, hydraulic cylinder within the interior of the tool. As the cylinder is drained, an associated fluid piston moves to occupy the evacuated chamber. The fluid piston is connected to a firing pin holder which releases the firing pin, allowing the firing pin to contact a percussion detonator to fire the perforating gun.

REFERENCES:
patent: 2876701 (1959-03-01), Long
patent: 3189094 (1965-06-01), Hyde
patent: 3800705 (1974-04-01), Tamplen
patent: 4484632 (1984-11-01), Vann
patent: 4531590 (1985-07-01), Peterson
patent: 4554981 (1985-11-01), Davies

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Firing head for a tubing conveyed perforating gun does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Firing head for a tubing conveyed perforating gun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Firing head for a tubing conveyed perforating gun will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1336160

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.