THROUGH TUBING WHIPSTOCK

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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Bibliographische Detailangaben
Hauptverfasser:	KUCK, MARC D, HARMON, STEPHEN K, SWANSON, ROY E., JR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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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Beschreibung
Zusammenfassung:	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 t o stay out of the way of the mill or mills and yet be easy to engage by a retrieving tool.