Oilwell choke

An oilwell choke can include a choke body having an inlet and an outlet, a seat, a gate configured to optionally sealingly engage the seat, and an at least partially curved choke profile. A gate can include an at least partially curved gate profile and a seat can include an at least partially curved...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Church, Jr., Richard M
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:	An oilwell choke can include a choke body having an inlet and an outlet, a seat, a gate configured to optionally sealingly engage the seat, and an at least partially curved choke profile. A gate can include an at least partially curved gate profile and a seat can include an at least partially curved seat profile. A choke profile can have one or more radiuses of curvature. At least a portion of a choke profile can be elliptical. An oilwell choke can include a secondary closure, which can include an annular tongue configured to sealingly engage an annular groove.