Swivel unit

Details Swivel unit Swivel unit

E - Fixed Constructions

21

B

255/27

E21B 17/05 (2006.01) E21B 21/02 (2006.01) E21B 33/127 (2006.01) E21B 49/08 (2006.01)

Patent

CA 1157459

ABSTRACT OF THE DISCLOSURE A swivel unit for inflatable packer drill stem test tools has an outer housing with a lower end adapted for connection to the drill stem and an upper end. An inner shaft has a base portion received within the outer housing and has a neck portion which protrudes from the outer housing. Tapered roller bear- ings located between the outer housing and inner shaft at opposing ends of the inner shaft base portion rotatably mount the outer housing about the inner shaft. The outer housing has a shoulder formed in its external surface for receiving the derrick elevators and supporting the test tool assembly.

397459

Affiliated with

Also associated with

Rating

Swivel unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-551359