Well conduit joint sealing system
Patent
·
OSTI ID:5635227
A milling tool for forming an upwardly facing sealing surface on a shoulder in a conduit is described comprising: (a) an upper mandrel having a top connector; (b) an intermediate mandrel connected to the upper mandrel; (c) a lower mandrel connected to the intermediate mandrel having a cutter slidably mounted thereon, adjustable biasing means for controlling downward force on the cutter including and adjusting ring threaded on the lower mandrel and a spring around the lower mandrel between the ring and the cutter, and a shoulder limiting downward travel of the cutter; and (d) means for keying the lower mandrel to the cutter.
- Assignee:
- Otis Engineering Corp., Dallas, TX
- Patent Number(s):
- US 4709761
- OSTI ID:
- 5635227
- Country of Publication:
- United States
- Language:
- English
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