Wells – Processes – Assembling well part
Patent
1995-01-20
1996-06-25
Buiz, Michael Powell
Wells
Processes
Assembling well part
166 551, E21B 4300, E21B 2300
Patent
active
055291279
ABSTRACT:
An apparatus and method for snubbing tubing-conveyed perforating guns in and out of a well bore. The apparatus includes a string of perforating guns wherein adjacent perforating guns are attached using a connector having an upper mandrel which is attached to a lower mandrel by left-hand threaded connection. A ratchet positioned on the upper mandrel allows left-hand rotation of the upper mandrel and ratchet with respect to the lower mandrel while preventing right-hand rotation of the ratchet with respect to the lower mandrel. Shear screws interconnecting the upper mandrel and the ratchet may be sheared upon application of a predetermined torque to allow right-hand rotation of the upper mandrel with respect to the ratchet. The lower mandrel has a recess or reduced diameter portion which is adapted for sealing engagement by a pipe ram in a blowout preventer. The connector allows snubbing of a tubing-conveyed perforating gun string in and out of a well bore under pressure while utilizing existing and unmodified workover equipment and methods of snubbing the guns into the well bore and retrieving them are disclosed.
REFERENCES:
patent: 3032109 (1962-05-01), Corley, Jr. et al.
patent: 4066282 (1978-01-01), Vann
patent: 4078611 (1978-03-01), Vann
patent: 4526233 (1985-07-01), Stout
patent: 4756363 (1988-07-01), Lanmon, II et al.
patent: 4762179 (1988-08-01), Wesson et al.
patent: 4771827 (1988-09-01), Barker et al.
patent: 4776393 (1988-10-01), Forehand et al.
patent: 5293940 (1994-03-01), Hromas et al.
patent: 5366014 (1994-11-01), George
Burleson John D.
George Flint R.
Buiz Michael Powell
Halliburton Company
Imwalle William M.
Kennedy Neal R.
LandOfFree
Apparatus and method for snubbing tubing-conveyed perforating gu 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 and method for snubbing tubing-conveyed perforating gu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for snubbing tubing-conveyed perforating gu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2182558