Tubing hanger

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/04 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2734186

A tubing hanger for use in a wellhead. The wellhead includes a throughbore, a landing seat positioned in the throughbore, a landing groove positioned above the landing seat in the throughbore, and a locking groove in the throughbore. The tubing hanger comprises an expandable landing ring positioned on the tubing hanger for engaging the landing groove and a landing mechanism for expanding the landing ring radially outward from the tubing hanger. A locking ring for engaging the locking groove can be positioned on the tubing hanger. The tubing hanger can further include a locking mechanism for expanding the locking ring radially outward from the tubing hanger body and locking it into the locking groove.

Linvention se rapporte à un dispositif de suspension pour colonne de production destiné à être utilisé dans une tête de puits. Ladite tête de puits comprend un trou de sonde qui contient un siège dancrage, une rainure de blocage, ainsi quune rainure dancrage disposée au-dessus dudit siège dancrage. Une bague dancrage expansible placée sur le dispositif de suspension pour colonne de production entre en prise avec la rainure dancrage, et un mécanisme dancrage permet de détendre la bague dancrage dans la direction radiale, au-delà du dispositif de suspension pour colonne de production. Une bague de blocage entrant en prise avec la rainure de blocage peut être installée sur le dispositif de suspension pour colonne de production. De plus, ledit dispositif de suspension peut comprendre un mécanisme de blocage conçu pour détendre la bague de blocage dans la direction radiale, au-delà du corps du dispositif de suspension pour colonne de production, et la bloquer dans la rainure de blocage.

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