Deep water drilling riser pressure relief system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 16, 2018
Grant Date -
Jul 28, 2016
app pub date -
Jun 27, 2014
filing date -
Sep 10, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A deep water drilling riser pressure relief system includes a drilling riser extending from a surface down to a BOP stack arranged subsea. The drilling riser comprises a drilling riser slip joint, an annular preventer arranged below the drilling riser slip joint, and at least one pressure relief device arranged in a lower part of the drilling riser. The at least one pressure relief device is configured to open so as to discharge a fluid from the drilling riser to the sea if a pressure difference between an inside and an outside of the drilling riser exceeds a predetermined threshold.
First Claim
Other Claims data not available
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| NO | B1 | NO338020 | Sep 10, 2013 |
| GB | B | GB2532645 | Jun 27, 2014 |
| WO | A2 | WO2015036137 | Jun 27, 2014 |
International Classification(s)
- 2014 Application Filing Year
- E21B Class
- 4199 Applications Filed
- 3550 Patents Issued To-Date
- 84.55 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- E21B Class
- 18.80 % this patent is cited more than
- 7 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 | Jul 16, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 16, 2029 |
