Reduced differential sticking drilling collar

A system for drilling a subterranean well, the system including: a reduced differential sticking drilling collar 22, the reduced differential sticking drilling collar being an elongated tubular member having: a minimum outer diameter 28 at an uphole end 24 and at a downhole end 26 (fig. 2); a collar...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Rae Andrew Younger, Richard Mark Pye
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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