RESETTABLE BACKUP AND SYSTEM

A backup including a gage ring having frustoconical surface and a groove in the frustoconical surface, a segment having a nose engaged with the groove, the segment having an overlap finger and a finger receptor, a wedge ring in contact with the segment, and a retainer member disposed to retain the s...

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Bibliographische Detailangaben
Hauptverfasser:	EWING, Daniel, Deng, Guijun, BULLOCH, Dylan, OBERG, Levi, Harper, Jason
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 backup including a gage ring having frustoconical surface and a groove in the frustoconical surface, a segment having a nose engaged with the groove, the segment having an overlap finger and a finger receptor, a wedge ring in contact with the segment, and a retainer member disposed to retain the segment. The downhole tool further comprising a second backup also adjacent the element and spaced from the first backup by the element. A borehole system including a borehole in a subsurface formation, a string dispose within the borehole, a backup disposed within or as a part of the string. A borehole system including a borehole in a subsurface formation, a string dispose within the borehole, a tool disposed within or as a part of the string.