SYSTEM CONTAINING EXPENDIBLE ISOLATION VALVE WITH FRANGIBLE SEALING MEMBER, SEAT ARRANGEMENT AND METHOD FOR USE

An isolation valve for a downhole well completion system having a one piece frangible, ceramic sealing element and an extrusion resistant resiliently faced valve seat and a method for the use thereof is presented. Said sealing element is biased to the closed position and rotatable within a sealing e...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PEARCE, JOSEPH L, ECHOLS, III, RALPH H, PATTERSON, DANIEL L
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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