Wellhead assembly

Details Wellhead assembly Wellhead assembly

E - Fixed Constructions

21

B

E21B 33/06 (2006.01) E21B 33/03 (2006.01)

Patent

CA 2169503

The adapter, blow-out preventer housing and flow tee of an oilwell wellhead assembly are formed together as a one-piece or integral structure. The structure has a bottom flanged connection and a top studded and internally threaded connection. By eliminating threaded connections and the adapter body, the length of the combined assembly is reduced by about 50% and structural strength is improved.

L'invention vise une réduction, un logement d'obturateur et un raccord en T pour tête de puits de pétrole formant un tout monobloc. La structure comprend un raccord inférieur à brides et un raccord supérieur taraudé à ergots. En éliminant les raccords filetés et le corps de réduction, il est possible de réduire la longueur des éléments combinés d'environ 50 p. 100 et d'améliorer la résistance structurale de l'ensemble.

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