Round mandrel slip joint
This patent describes a slip joint for use in a well string. The slip joint consists of: first mandrel means defining a central opening longitudinally; second mandrel means defining a central opening and having a portion reciprocably positioned in the central opening of the first mandrel means such that the second mandrel means central opening and a portion of the first mandrel means central opening define a variable volume internal chamber; key receiving means defined on both the first and second mandrel means. The key receiving means comprising in part of surface of one of the first and second mandrel means defining a longitudinal slot and in part key engaging means on the other of the first and second mandrel means and adjacent and slot defined on the one of the first and second mandrel means; and key means engageable with the key receiving means for transmitting torque between the first and second mandrel means and providing guidance during relative movement thereof, the key means being separable from the first and second mandrel means, and comprising a substantially annular ring portion engaged with the key engaging means and rotatable therewith and a lug portion extending radially from the ring portion and into the slot.
- Assignee:
- Halliburton Co., Duncan, OK
- Patent Number(s):
- US 4693316
- OSTI ID:
- 5950916
- Resource Relation:
- Patent File Date: Filed date 20 Nov 1985
- Country of Publication:
- United States
- Language:
- English
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