Drill string diverter apparatus and method

A diverter apparatus (15) comprises a tubular housing (70) defining at least one flow port (92) defined therethrough communicated with a central opening flow passage (94) of said housing (70); a closing sleeve (102) disposed about said tubular housing (70) being moveable relative to said housing (70...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DUKE, WESLEY G, ROGERS, HENRY E, STEWART, TOMMY T, HALLMAN, MILLARD L
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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