Well apparatus including a tool for use in shifting a sleeve within a well conduit

Well apparatus including a tool for use in shifting a sleeve within a well conduit

Well apparatus is disclosed in which a tool is lowered on a pipe string into a well conduit for shifting a sleeve slidably mounted within a tubular housing connected as part of the well conduit. The sleeve has vertically spaced grooves about its inner diameter, and the tool has latches which are sel...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AKKERMAN, NEIL H, BARTON, JOHN A, NEWMAN, BILLY R, MILLS, AUBREY C
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:Well apparatus is disclosed in which a tool is lowered on a pipe string into a well conduit for shifting a sleeve slidably mounted within a tubular housing connected as part of the well conduit. The sleeve has vertically spaced grooves about its inner diameter, and the tool has latches which are selectively moved into and out of engagement with a selected groove in the sleeve in response to the control of the pressure of fluid within the tool. When engaged in a groove, the tool may be raised or lowered with the pipe string to raise or lower the sleeve.