E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/01 (2006.01) E21B 7/08 (2006.01) E21B 29/06 (2006.01)
Patent
CA 2538563
An anchor for a wellbore is adaptable to be operated in at least two separate and distinct ways. In one embodiment, a whipstock anchor is provided that can be operated either mechanically or hydraulically. In another embodiment, the anchor is designed to run through a restriction in a retracted position and thereafter expanded to position a wellbore tool in the wellbore. Preferably, the anchor is expandable to set in wellbores of various sizes and either cased or uncased.
Blankenship Dan
Hester Stephen Hermes
Marshall Greg
Rios Aristeo III
Vuyk Adrian Jr.
Deeth Williams Wall Llp
Weatherford/lamb Inc.
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