Wells – Submerged well – Means removably connected to permanent well structure
Patent
1985-11-20
1987-09-15
Novosad, Stephen J.
Wells
Submerged well
Means removably connected to permanent well structure
166367, 175321, 285302, E21B 1707
Patent
active
046933166
ABSTRACT:
A slip joint for use in a well string and having a removable torque transmitting key. The slip joint includes an outer female mandrel having a central opening therethrough in which is slidingly positioned a male mandrel, also defining a central opening therethrough. In one embodiment, the male mandrel defines at least one longitudinal slot therein and the female mandrel defines a transverse opening therethrough adjacent the slot. The torque transmitting key is positioned in the transverse opening and extends into the slot. In the second embodiment, the inner mandrel includes a flat surface thereon and the outer mandrel has a longitudinal slot therein adjacent the flat surface. The key includes a ring portion having a flat surface therein engageable with a flat surface on the male mandrel and a lug portion extending from the ring portion into the slot. Preferably, the slip joint also includes a bearing portion for radially positioning the inner mandrel and the outer mandrel and for guidance during axial movement therebetween. The bearing portion includes an annular sleeve bearing between the mandrels. In one embodiment, the key also includes a bearing surface in contact with the longitudinal slot for additional guidance between the mandrels.
REFERENCES:
patent: 2858099 (1958-10-01), Althowe, Jr. et al.
patent: 3354950 (1967-11-01), Hyde
patent: 4059148 (1977-11-01), Blomsma
Beck Harold K.
Newman Daniel A.
Ringgenberg Paul D.
Halliburton Company
Kennedy Neal R.
Novosad Stephen J.
Walkowski Joseph A.
LandOfFree
Round mandrel slip joint does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Round mandrel slip joint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Round mandrel slip joint will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1379030