VARIABLE BLOWOUT PREVENTER APPARATUS AND METHOD

A blowout preventer includes a housing including a longitudinal passage and a pair of ram passages extending from the longitudinal passage, a first ram assembly disposed in a first of the pair of ram passages and including first ram block assembly, and a second ram assembly disposed in a second of t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Eggleston, Clifton Dee, Weaver, Randall Ferrain
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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Beschreibung
Zusammenfassung:	A blowout preventer includes a housing including a longitudinal passage and a pair of ram passages extending from the longitudinal passage, a first ram assembly disposed in a first of the pair of ram passages and including first ram block assembly, and a second ram assembly disposed in a second of the pair of ram passages and including a second ram block assembly, wherein the first ram block assembly is configured to include a first configuration in which it sealingly engages an outer surface of a tubular member extending through the longitudinal passage of the housing when the blowout preventer is in a closed position, and a second configuration in which it sealingly engages the second ram block assembly when the blowout preventer is in the closed position.