E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 29/00 (2006.01) E21B 7/06 (2006.01)
Patent
CA 2318031
An apparatus for milling through a whipstock in a wellbore, which apparatus comprises a mill guide with a lower shoe for emplacement between an interior surface of the wellbore and an exterior portion of an upstream portion of the whipstock to position and/or stabilize the mill guide.
Cet appareil pour percer un déviateur dans un puits de forage comprend un guide avec un patin inférieur à placer entre une surface intérieure du puits de forage et le côté extérieur d'une partie du déviateur située en amont afin de positionner et/ou de stabiliser le guide.
Blizzard William Alan Jr.
Carter Thurman B.
Durst Douglas Glenn
Johantges Paul Jeffrey
Langford Dale Elliot
Marks & Clerk
Weatherford/lamb Inc.
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