Downhole clutch assembly

Details Downhole clutch assembly Downhole clutch assembly

E - Fixed Constructions

21

B

E21B 33/04 (2006.01)

Patent

CA 2168090

There is described a clutch for providing a rotatable connection between the downhole end of a tubing string and a tubing anchor adapted for connection to an internal surface of a well bore, the clutch comprising a first tubular sub having an uphole and a downhole end, the uphole end being adapted for connection to the downhole end of a tubing string, a second tubular sub having an uphole and a downhole end, the uphole end of the second tubular sub being disposed annularly about the downhole end of the first tubular sub, the downhole end of the second tubular sub being adapted for connection to a tubing anchor, and connector means disposed between the first and second tubular subs, the connector means being adapted to initially prevent relative rotation between the first and second tubular subs for transmission of torque through the clutch means to a tubing anchor connected thereto, the connector means actuatable thereafter to permit relative rotation between the first and second tubular subs.

Cette invention concerne un embrayage pour le raccordement en rotation de l'extrémité inférieure d'un tubage à un ancrage de tubage conçu pour s'agripper à la paroi d'un forage, l'embrayage comportant un premier raccord double femelle dont l'extrémité supérieure s'adapte à l'extrémité inférieure d'un tubage, un deuxième raccord double femelle dont l'extrémité supérieure s'emboîte sur l'extrémité inférieure du premier raccord double femelle et dont l'extrémité inférieure est configurée pour se raccorder à un ancrage de tubage, et un moyen de raccordement disposé entre les deux raccords doubles femelles, le moyen de raccordement étant conçu pour s'opposer initialement à la rotation des deux raccords doubles femelles l'un par rapport à l'autre et ainsi transmettre un couple via l'embrayage à un ancrage de tubage y raccordé, le moyen de raccordement étant manoeuvrable par la suite pour permettre la rotation des deux raccords doubles femelles l'un par rapport à l'autre.

Affiliated with

Also associated with

Rating

Downhole clutch assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Downhole clutch assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole clutch assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1518222