Anti-rotation device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 28, 2000
Grant Date -
N/A
app pub date -
Dec 30, 1997
filing date -
Dec 30, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An anti-rotation device for use with concentric tubing hangers is disclosed. The anti-rotation device can be used as part of the emergency release system that provides for manually releasing and removing the tubing hanger running tool in the event the hydraulic release mechanism fails. The anti-rotation device can be retrofitted into existing tubing hangers without modification to the surrounding casing or spool body.
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