Wells – Processes – Placing or shifting well part
Reexamination Certificate
2008-05-27
2008-05-27
Neuder, William P (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S134000
Reexamination Certificate
active
11069282
ABSTRACT:
An expandable downhole anchoring tool positionable within a wellbore for use in cooperation with drilling equipment comprises a body including a plurality of angled channels formed into a wall thereof, and a plurality of moveable slips disposed in the same radial plane around the body, wherein the plurality of moveable slips are hydraulically translatable along the plurality of angled channels between a collapsed position and an expanded position. A method of setting an expandable anchor within a wellbore comprises running the anchor into the wellbore in a collapsed position, and expanding the anchor into gripping engagement with the wellbore, wherein the anchor is adapted to expand up to at least 1.5 times a collapsed diameter of the anchor.
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USPTO Office Action Dated Aug. 29, 2007 for U.S. Appl. No. 11/670,888.
Campbell John E.
Cruickshank Brian W.
Dewey Charles H.
Conley & Rose, P.C.
Neuder William P
Smith International Inc.
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