Casing hanger lockdown sleeve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 14, 2016
Grant Date -
Aug 22, 2013
app pub date -
Jul 1, 2011
filing date -
Jul 27, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
The lockdown mechanism (10) and running tool (50) are provided for securing the casing hanger (12, 13) within the wellhead (14) and sealing the annulus between the casing and the wellhead. The lockdown ring (20) fixes the lockdown sleeve (40) to a wellhead in response to a lockdown piston (22). A first seal (24) energized by the running tool seals between the lockdown sleeve and the wellhead. Ball seat (30) is axially movable within the running tool, and a second seal also energized by the running tool (32) seals between the lockdown sleeve and the casing hanger.
First Claim
Other Claims data not available
Family
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| GB | B | GB2496783 | Jul 01, 2011 |
| WO | A1 | WO2012018469 | Jul 01, 2011 |
| SG | A1 | SG187210 | Jul 01, 2011 |
| NO | B1 | NO345347 | Feb 25, 2013 |
International Classification(s)
- 2011 Application Filing Year
- E21B Class
- 2545 Applications Filed
- 2297 Patents Issued To-Date
- 90.26 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E21B Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 14, 2027 |
