LINER HANGER AND FLAPPER VALVE AND METHOD UTILIZING SAME

A valve system and method according to which a sleeve is retained in a predetermined axial position in a liner in a well bore so that fluid introduced into the well bore flows through the sleeve. The sleeve is released in response to the blocking of the flow to permit the sleeve to move in the liner...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CAMPO, DONALD, B, DAIGLE, CHAN, LAWRENCE, NOEL, GREGORY, MARSHALL
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 valve system and method according to which a sleeve is retained in a predetermined axial position in a liner in a well bore so that fluid introduced into the well bore flows through the sleeve. The sleeve is released in response to the blocking of the flow to permit the sleeve to move in the liner. L'invention concerne un système de soupape et un procédé selon lesquels un manchon est retenu en une position axiale prédéterminée dans un chemisage dans un puits de sorte que le fluide introduit dans le puits circule à travers le manchon. Le manchon est libéré en réponse au blocage du débit pour permettre au manchon de se déplacer dans le chemisage.