DRILL STRING WITH CENTRALIZER

A drill string for drilling a borehole. The drill string may include a downhole motor operable to rotate the drill string and a centralizer assembly. The centralizer assembly may include an outer housing, a lower sub threadably engaged with the outer housing, and a centralizer. The centralizer may i...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LEUNG, Philip Park Hung, D'SILVA, Alben, BELL, Steven Graham
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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