SLEEVE VALVE DEVICE AND SHIFTING TOOL THEREFOR

Disclosed is a sliding sleeve valve (12) and a selective pressure operated shifting tool (20) engageable in the selected sleeve valve for shifting the valve sleeve (28) between open and closed positions. The sleeve valve is connectable in a well conduit and is especially useful in highly deviated an...

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Bibliographische Detailangaben
Hauptverfasser:	MASHAW, JR., HOWARD R, HAMMETT, ROBERT 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:	Disclosed is a sliding sleeve valve (12) and a selective pressure operated shifting tool (20) engageable in the selected sleeve valve for shifting the valve sleeve (28) between open and closed positions. The sleeve valve is connectable in a well conduit and is especially useful in highly deviated and horizontal wells. The sleeve valve has a longitudinal flow passage (37) through, centralizers (25) for centralizing the valve in well conduits, longitudinal flow slots (35) on the valve body and ports (36) connecting the flow slots and flow passage. The pressure operated shifting tool is connected to reeled tubing (17) by a quick disconnect (39). The shifting tool includes an invertible shifting module (41) which may be inverted to shift the valve sleeve to closed or open position. The shifting tool keys (72) are locked retracted for running and on complete shifting of the sleeve are automatically released from the valve sleeve and returned to locked retracted position for retrieving.