Baffle collar with double tapered lock ring
AssigneeExpro North Sea Limited
InventorsJeffry C. Ehlinger, Beau H. Martin
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure relate to a cementing system. In one embodiment, cementing system includes a float shoe and a collar system. The collar system includes a baffle collar; an inner string, a plug stem, and a sealing plug. The sealing plug includes a lock ring cavity and a lock ring. The lock ring cavity includes an upper cavity tapered surface and a lower cavity tapered surface. The lock ring includes a tapered surface. The tapered surface includes an upper ring tapered surface and a lower ring tapered surface.
Claims20
A cementing system, comprising:
- a float shoe;
- and
- a collar system, comprising:
- a baffle collar;
- an inner string;
- a plug stem;
- a sealing plug, comprising:
- a lock ring cavity comprising:
- an upper cavity tapered surface;
- and
- a lower cavity tapered surface;
- and
- a lock ring having a tapered surface, the tapered surface comprising:
- an upper ring tapered surface;
- and
- a lower ring tapered surface.
An anchoring device installed in a tubular, comprising:
- a body defining a lock ring cavity comprising:
- an upper cavity tapered surface;
- and
- a lower cavity tapered surface;
- and
- a lock ring comprising:
- an upper ring surface;
- and
- a lower ring surface.
An anchoring device, comprising:
- a body defining a lock ring cavity, comprising:
- an upper cavity surface;
- and
- a lower cavity surface;
- and
- a lock ring having a tapered surface, the tapered surface comprising:
- an upper ring tapered surface;
- and
- a lower ring tapered surface.
Dependencies are inferred from the claim text.