E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/08 (2006.01) E21B 23/01 (2006.01)
Patent
CA 2308845
A whipstock assembly (10), (110) for setting within a casing C includes a whipstock body (12), (112) having a whipstock diversion face (24), (124) for diverting a tool with respect to the casing. At least one wedge member (32), (132), (133) is moveable relative to the whipstock body and supports one or more wedge slips, (34), (36), (134), (136) thereon for anchored engagement with the casing. The wedge member has a whipstock body engaging surface (98) for sliding engagement with a lower wedge engaging surface (96) on the whipstock body. An elongate rod or other actuation member 40 moves the at least one wedge member from the run in position to the set position. According to the method of the invention, the whipstock and anchor assembly may be run into the well through a tubing string then set in the casing. The whipstock assembly may be of the type which is retrievable to the surface after having been set in the casing.
Finlayson & Singlehurst
Tiw Corporation
LandOfFree
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