Polymer shock absorber for use with well head lubricator...

Details Polymer shock absorber for use with well head lubricator... Polymer shock absorber for use with well head lubricator...

E - Fixed Constructions

21

B

E21B 33/03 (2006.01) E21B 33/00 (2006.01) F16F 1/36 (2006.01) F16F 1/377 (2006.01)

Patent

CA 2596205

A shock absorber for use with a lubricator assembly comprises a body made substantially of a polymer material. An end of the body is supportable by a cup. Upon plunger strike, the cup can travel upward in the lubricator assembly and cause the polymer body to deform and dissipate a force of impact caused by the plunger. The body can resiliently compress and expand to substantially an original form. Equalization slots on the body can enable fluid carried to the surface by a plunger to flow from the lubricator assembly.

Amortisseur pour utilisation avec un lubrificateur comprenant un corps essentiellement en polymère. Une extrémité du corps est supportée par une cuvette. Lorsque frappée par un piston plongeur, la cuvette peut se déplacer vers le haut du lubrificateur et entraîner la déformation du corps en polymère, tout en dissipant la force d'impact du piston. Le corps résilient peut se comprimer et se dilater pour reprendre essentiellement sa forme originale. Des fentes d'équilibrage sur le corps permettent à un fluide amené à la surface par un piston de s'échapper du lubrificateur.

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