E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/08 (2006.01) E21B 7/06 (2006.01) E21B 33/129 (2006.01)
Patent
CA 2071183
A whipstock setting apparatus includes a whipstock (W) with a mandrel (11) secured thereto and depending therefrom. A cutter, or mill (M) is connected to a work string (WS) and releasably connected to the whipstock(W). A packer assembly (PA) including a mechanical weight set packer (P) and upper and lower cone and slip means (20) abd (30) are mounted on the mandrel (11) above and below the packer (P). The mandrel (11) is releasably connected to the packer assembly (PA) to prevent premature longitudinal movement therebetween and to accommodate relative longitudinal movement therebetween when desired. The components of the whipstock assembly and packer assembly are secured so as to maintain alignment with the face (F) of the whipstock (W) while lowering the whipstock (W) in the well tubular member (C), after the mandrel (11) is released for longitudinal movement relative to the packer assembly (PA) and after the whipstock is oriented in the well tubular member (C) whereby the oriented whipstock (W) and packer assembly (PA) are anchored in the well tubular member (C) by longitudinal movement of the work string (WS) to minimize or eliminate changing the orientation of the whipstock (W).
Riches Mckenzie & Herbert Llp
Tiw Corporation
LandOfFree
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