Rotating control device for drilling wells

A rotating control apparatus, comprising: an outer member; an inner member having a first sealing element and a second sealing element; said inner member, said first sealing element and said second sealing element rotatable relative to said outer member; a first cavity defined by said inner member,...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HANNEGAN, DON M, HOYER, CAREL W, BAILEY, THOMAS F, JACOBS, MELVIN T, WHITE, NICKY
Format:	Patent
Sprache:	eng ; fre ; ger
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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