HYBRID BIT

A hybrid bit includes fixed blades and wheel support structures. The wheel support structure includes a wheel inserted into a slot between a leading support and a trailing support. One or more shims fill a gap between a flange and the leading supports. An elongated seal between the wheel and the sup...

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Bibliographische Detailangaben
Hauptverfasser:	KUMAR, Mahesha, MCDONOUGH, Scott D, KARUPPIAH, Venkatesh, ALSUP, Shelton W
Format:	Patent
Sprache:	eng ; fre
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 hybrid bit includes fixed blades and wheel support structures. The wheel support structure includes a wheel inserted into a slot between a leading support and a trailing support. One or more shims fill a gap between a flange and the leading supports. An elongated seal between the wheel and the supports is provided to seal the wheel support. Un trépan hybride comprend des lames fixes et des structures de support de roue. La structure de support de roue comprend une roue insérée dans une fente entre un support avant et un support arrière. Une ou plusieurs cales remplissent un espace entre une bride et les supports avant. Un joint allongé entre la roue et les supports est prévu pour sceller le support de roue.