Wells – Processes – Placing or shifting well part
Patent
1998-11-09
2000-03-14
Dang, Hoang
Wells
Processes
Placing or shifting well part
1661176, 166217, 175 81, E21B 704, E21B 708
Patent
active
060359390
ABSTRACT:
The present invention, in certain embodiments, includes a whipstock system with a body having an upper concave and a lower end, anchor apparatus on the lower end of the body, the anchor apparatus having a movable member releasably connected to the lower end of the body, and movable radially with respect to the lower body, the lower end of the body and movable member initially occupying a first space with a first diameter, and the movable member and lower end of the body movable apart from each other to anchor the whipstock system in a wellbore tubular. In one aspect there is one or more toothed slips on the movable member for engaging an interior surface of the wellbore tubular in which the whipstock system is to be anchored. In one aspect such a system can be used "through tubing".
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Dang Hoang
McClung Guy
Weatherford / Lamb, Inc.
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