Downhole anchor

An anchoring apparatus for use in a wellbore, comprises at least one movable wall engaging member for engaging a wall of a wellbore, wherein the at least one movable wall engaging member is movable from a retracted position to an expanded position to engage the wall, and from the expanded position t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Philip C.G Egleton, Stephen Reid
Format:	Patent
Sprache:	eng
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:	An anchoring apparatus for use in a wellbore, comprises at least one movable wall engaging member for engaging a wall of a wellbore, wherein the at least one movable wall engaging member is movable from a retracted position to an expanded position to engage the wall, and from the expanded position to a retracted position to disengage the wall. Provision of one or more wall engaging members being movable from an expanded position to a retracted position allows the anchoring apparatus to be retrieved from the wellbore, and in particular, from an open hole.