Ledekile for foringsror

A through tubing retrievable whipstock (10) and installation method is disclosed. In the preferred embodiment, a plurality of anchor links (14, 16) pivot at one end and have wickers (46, 48) on an opposed rounded end. The links are configured to deliver an optimum contact angle with respect to the l...

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Bibliographic Details
Main Authors HARMON STEPHEN K, SWANSON JR ROY E, KUCK MARE D
Format Patent
LanguageNorwegian
Published 28.06.2010
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A through tubing retrievable whipstock (10) and installation method is disclosed. In the preferred embodiment, a plurality of anchor links (14, 16) pivot at one end and have wickers (46, 48) on an opposed rounded end. The links are configured to deliver an optimum contact angle with respect to the longitudinal axis of the whipstock in a variety of casing sizes and weights. A lock ring system holds the set position and upper end is hinged and biased to stay out of the way of the mill or mills and yet be easy to engage by a retrieving tool.
Bibliography:Application Number: NO20040001569