Non-rotating plug
Patent
·
OSTI ID:5660395
This patent describes an anti-rotation plug set comprising: an upper plug including: a body member having a cavity in the bottom thereof; an elastomeric wiper covering disposed about a portion of the body member and retained thereon; and an anti-rotation insert retained within the cavity in the bottom of the body member, the insert having a plurality of downwardly facing elongated projections thereon; and a bottom plug including; a body member having a bore therethrough having, in turn, a plurality of longitudinal recesses in the upper portion thereof adapted to receive the downwardly facing elongated projections of the upper plug; an elastomeric wiper covering disposed about a portion of the body member and retained thereon; a diaphragm sealing the bore through the body member, the diaphragm located below the longitudinal recesses in the upper portion of the bore in the body member; and an anti-rotation insert retained within the lower portion, the bore through the body member, the lower antirotation insert having downwardly facing teeth thereon.
- Assignee:
- Halliburton Co., Duncan, OK
- Patent Number(s):
- US 4836279
- OSTI ID:
- 5660395
- Country of Publication:
- United States
- Language:
- English
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