Method for setting and orienting a whipstock in a well conduit

Details Method for setting and orienting a whipstock in a well conduit Method for setting and orienting a whipstock in a well conduit

1980-07-21

1981-12-08

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

1661176, 166387, E21B 708, E21B 2300, E21B 47024

Patent

active

043042996

ABSTRACT:
A method is provided for the angular orientation of a whipstock having an arcuate tool directing face and a whipstock anchor in a packer which is installed in a well, the packer and the anchor having longitudinally extending cooperable key elements engageable when the anchor is assembled in the packer. The angular disposition of the key element in the packer relative to polar coordinates is determined by a downhole survey. The whipstock is assembled on the whipstock anchor outside the well with the whipstock being angularly adjustable relative to the whipstock anchor about an axis that will be coincident with the conduit axis. The angular position of the whipstock in the whipstock anchor is adjusted to the desired angular displacement relative to the whipstock anchor key element. The whipstock is fixed in the adjusted position in the whipstock anchor and the whipstock anchor is lowered with the whipstock attached into the well to engage the key element of the whipstock anchor with the key element of the packer.

REFERENCES:
patent: 2131849 (1938-10-01), Tolson
patent: 2301307 (1942-11-01), McMahan
patent: 2653007 (1953-09-01), Aston
patent: 3908759 (1975-09-01), Cagle et al.
patent: 4153109 (1979-05-01), Szescila

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