High strength inlay to improve lock-down capacity in a wellhead
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 19, 2017
Issued Date -
Apr 30, 2015
app pub date -
Oct 23, 2014
filing date -
Oct 28, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A wellhead assembly includes a wellhead housing having a bore and a locking profile including a gallery slot, and an annular notch. An inner wellhead assembly is selectively landed in the bore of the wellhead housing, the inner wellhead assembly having a lock ring with a lock ring profile that engages the locking profile. The engaging surface is a sloped downward facing surface at an axially upper end of the gallery slot. The annular notch has a notch engaging profile with a downward facing notch upper shoulder and an upward facing notch lower shoulder. The locking profile includes an inlay, the inlay being located on the notch upper shoulder and the engaging surface.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- E21B Class
- 11.26 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 19, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 19, 2029 |
