Curved flapper with angle variant seat for a subsurface safety valve

A subsurface safety valve for controlling fluid flow in a well bore. In one embodiment, the subsurface safety valve includes a tubular member having a longitudinal bore extending therethrough, a curved flapper removably connected to the tubular member. The curved flapper is configured to pivot again...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HENSCHEL ROBERT C, JANCHA ROBERT A, HILL, JR. THOMAS G
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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