Annular Blowout Preventer Apparatus

The present disclosure generally relates to an annular blowout preventer ("BOP") apparatus for sealing a wellbore. In particular, the annular BOP includes a body comprising a vertical bore extending therethrough, an upper packing element located in the body, a lower packing element located...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Jones Oscar B, Arteaga Nicolas
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:	The present disclosure generally relates to an annular blowout preventer ("BOP") apparatus for sealing a wellbore. In particular, the annular BOP includes a body comprising a vertical bore extending therethrough, an upper packing element located in the body, a lower packing element located in the body and spaced axially from the upper packing element, and a piston configured to move the upper and lower packing elements radially with respect to the vertical bore. The annular BOP provides for bi-directional sealing across the annular BOP. In other embodiments, the annular BOP may include only a single packing element configured to provide for bi-directional sealing across the annular BOP.