RESETTABLE SLIDING SLEEVE FOR DOWNHOLE FLOW CONTROL ASSEMBLIES

A flow control assembly includes a housing (202) defining flow port (204) that place an interior of the housing (202) in fluid communication with an exterior of the housing (202), and a sliding sleeve (210) defining sleeve ports (212) and movably positioned within the interior between a first positi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BECK, Adam Evan, WONG, Daniel Lorng Yon, SIM, Nicholas Kok Jun
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 flow control assembly includes a housing (202) defining flow port (204) that place an interior of the housing (202) in fluid communication with an exterior of the housing (202), and a sliding sleeve (210) defining sleeve ports (212) and movably positioned within the interior between a first position, where fluid communication between the interior and the exterior via the flow ports (204) is prevented, and a second position, where fluid communication between the interior and the exterior is facilitated through the sleeve ports (212) and the flow ports (204). A piston (216) and a slip device (218) are movably arranged within a piston chamber (220) defined between the housing (202) and the sliding sleeve (210). The piston (216) has a first end exposed to an interior pressure and a second end exposed to an exterior pressure via chamber ports (231) defined in the housing (202). A biasing device (238) is also positioned within the piston chamber (220). (FIG. 2)