Isolation Sleeve for Downhole Equipment

A protective sleeve is deployable within an oil/gas well to protect a device installed in the well such as a safety valve, for example. The sleeve includes a pressure equalizing dart and an overpressure protection piston. The sleeve also serves to isolate an installed device from harmful substances...

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Bibliographische Detailangaben
1. Verfasser:	Mailand Jason 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:	A protective sleeve is deployable within an oil/gas well to protect a device installed in the well such as a safety valve, for example. The sleeve includes a pressure equalizing dart and an overpressure protection piston. The sleeve also serves to isolate an installed device from harmful substances such as acids and other corrosive fluids.