Bridge plug with bi-directional high strength high expansion retrievable anchor
AssigneeWeatherford Technology Holdings, LLC
InventorMichael W. Mitchell
Life of this patent
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Abstract
An anchor can include an inner mandrel, a slip configured to grip a well surface, and a link arm with pivots at respective opposite ends and the link arm being configured to rotate relative to the slip about a pivot, and the other pivot being configured to displace radially outward relative to the inner mandrel when the anchor is set in the well. A method can include deploying an anchor into a wellbore, and setting the anchor in the wellbore, the setting including displacing a slip radially outward into gripping engagement with a well surface, the displacing including rotating a link arm until a surface of a wedge engages a surface of the link arm and another surface of the link arm engages a surface of the slip.
Claims14
An anchor for use with a subterranean well, the anchor comprising:
- an inner mandrel;
- a slip configured to grip a well surface;
- and
- a link arm with first and second pivots at respective opposite ends of the link arm, the link arm being configured to rotate relative to the slip about the first pivot, and the second pivot being configured to displace radially outward relative to the inner mandrel when the anchor is set in the well, in which the second pivot connects the link arm to a flexible collet configured to permit radial displacement of the second pivot.
A method for use with a subterranean well, the method comprising:
- deploying an anchor into a wellbore;
- and
- setting the anchor in the wellbore, the setting comprising displacing a slip radially outward into gripping engagement with a well surface, the displacing comprising rotating a link arm until a first surface of a first wedge engages a second surface of the link arm and a third surface of the link arm engages a fourth surface of the slip.
Dependencies are inferred from the claim text.