DIFFERENTIAL FILL VALVE SLEEVE BALL ASSEMBLY

A valve assembly has a housing defining a flow passage therethrough. A first flapper is disposed in the housing. A first sleeve retains the flapper in an open position. At least one lock ring holds the first sleeve in a first position. A tripping ball engages a plurality of disconnected bodies in th...

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Bibliographische Detailangaben
Hauptverfasser:	Ahuja, Mayur Narain, Parameshwaraiah, Rajesh, Helms, Lonnie Carl, Niebla, Saul Emmanuel Vazquez, Yuan, Min Mark, Saetre, Tor Sigve, Ardoin, Kevin
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:	A valve assembly has a housing defining a flow passage therethrough. A first flapper is disposed in the housing. A first sleeve retains the flapper in an open position. At least one lock ring holds the first sleeve in a first position. A tripping ball engages a plurality of disconnected bodies in the sleeve and a force is applied to move the first sleeve from the first to a second position.