Wellhead connector

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/03 (2006.01) E21B 33/04 (2006.01)

Patent

CA 2128177

A wellhead connector has a tubular head that lands over a well conduit, such as casing. The head has an annular recess. An annular housing is located in the recess. The housing has a slips bowl which carries gripping segments for gripping the casing. The gripping segments have exterior wedge surfaces which are engaged by radially extending lock pins. The lock pins extend through threaded holes in the head and through holes in the housing. The housing has an exterior cam surface. The lock pins may be removed from engagement with the gripping segments, the head picked up, and the lock pins reinserted into the holes for engaging the housing cam surface. Rotating the lock pins releases the segments from engagement with the casing.

onnecteur de tête de puits muni d'une tête tubulaire qui descend sur une conduite de puits, tel que le tubage. La tête est dotée d'un espace annulaire dans lequel se trouve un boîtier annulaire. Le boîtier a une cloche qui transporte des éléments à mâchoires pour accrocher le tubage. Les éléments à mâchoires ont des surfaces extérieures en coin qui sont engagées par l'extension radiale de goupilles de blocage. Les goupilles de blocage s'engagent dans des trous filetés de la tête et dans des trous du boîtier. Le boîtier a une surface extérieure en came. Les goupilles de blocage peuvent être libérées des éléments à mâchoires, la tête peut être dégagée et les goupilles de blocage peuvent être insérées dans les trous pour les engager dans la surface en came du boîtier. La rotation des goupilles de blocage libère les éléments du tubage.

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