Improved wear bushing install and retrieve system for a petroleum well, and Method therefor

The invention is a petroleum well wear bushing install and retrieve system comprising - a wear bushing (1), - for being arranged in a wellhead (4), and - being of large bore for a drill pipe string (O, OL, OU) carrying a drill bit or other well tool below to pass through it, and - said wear bushing...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Sørhus, Atle Johnny, Bergesen, Thomas
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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