Orientable whipstock tool and method

Details Orientable whipstock tool and method Orientable whipstock tool and method

2005-11-29

2005-11-29

Dang, Hoang (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S050000, C166S117600, C175S080000, C175S082000

Reexamination Certificate

active

06968903

ABSTRACT:
A whipstock assembly includes a whipstock body8having a whipstock center of gravity offset radially from the central axis of the whipstock body, a counterweight to releasably secured to the whipstock body, with a counterweight having an offset counterweight center of gravity, an orientation device5, and a neutralizer11. The neutralizer causes the combined whipstock
eutralizer center of gravity to be substantially closer to the central axis of the whipstock body compared to the whipstock center of gravity. An attaching mechanism6, 12allows the neutralizer to be returned to the surface after the whipstock body is set in the well.

REFERENCES:
patent: 1901454 (1933-03-01), Kelly
patent: 1923448 (1933-08-01), McCoy et al.
patent: 2132061 (1938-10-01), Walker
patent: 6012516 (2000-01-01), Brunet
patent: 6209635 (2001-04-01), Gotlib et al.
patent: 6360821 (2002-03-01), Braddick
patent: 2002/0070018 (2002-06-01), Buyaert

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