PRESSURE ACTUATED DOWNHOLE DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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N/A
Issued Date -
Mar 24, 2022
app pub date -
Jan 24, 2020
filing date -
Jan 24, 2020
priority date (Note) -
Published
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
A downhole valve, such as a safety valve or sub-sea safety valve (SSSV). The downhole valve comprising: a housing; a flow path between a valve inlet and a valve outlet; a valve mechanism; and a piston member; wherein the valve mechanism is operable by actuation of the piston member to selectively open and close the flow path between the valve inlet and valve outlet; and the piston member is actuatable by a pressure differential between an annulus pressure at the valve and a pressure at the valve outlet and/or in a portion of the flow path closest to the valve outlet. The valve can comprise an opening for receiving the annular pressure that is isolated from the valve inlet and valve outlet. The downhole valve can be configured such that it prevents operation of the valve mechanism to open and/or close the flow path by a pressure differential between the valve inlet and valve outlet.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| GB | B | GB2580906 | Jan 25, 2019 |
| WO | A1 | WO2020152478 | Jan 24, 2020 |
| EP | A1 | EP3914804 | Jan 24, 2020 |
International Classification(s)
- 2020 Application Filing Year
- E21B Class
- 3899 Applications Filed
- 2926 Patents Issued To-Date
- 75.05 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- E21B Class
- 61.31 % this patent is cited more than
- 3 Age