Pipe joints or couplings – Safety release – With frangible or deformable element
Patent
1987-03-10
1988-03-01
Novosad, Stephen J.
Pipe joints or couplings
Safety release
With frangible or deformable element
285 3, 285922, 175320, E21B 1706
Patent
active
047281243
ABSTRACT:
The invention relates to a safety connection for drilling purposes, especially for oil wells. The connection comprises two portions (1,2) which, during normal drilling, transmit the torque and the thrust required for the tool to operate, said torque and thrust being transmitted via a drive cone (11) and fluting (10). In the event of the tool becoming jammed downhole, strong axial traction breaks calibrated traction links (4) at a predetermined force, thereby separating said two portions (1, 2) and making it possible to abandon downhole solely the tool and the connection portion (1) connected thereto.
REFERENCES:
patent: 1839690 (1932-01-01), Malinowski
patent: 3387863 (1968-06-01), Treese
patent: 3499664 (1970-03-01), Burns
patent: 3842914 (1974-10-01), Mott
patent: 4139059 (1979-02-01), Carmichael
patent: 4459060 (1984-07-01), Patterson
patent: 4473125 (1984-09-01), Addudle et al.
patent: 4484633 (1984-11-01), Brandell
Obrecht Georges
Righi Herve
Alsthom
Kisliuk Bruce M.
Novosad Stephen J.
LandOfFree
Connection for drilling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Connection for drilling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Connection for drilling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-994074