Pumping assembly

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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Details

F04B 47/02 (2006.01)

Patent

CA 2451918

A pumping assembly includes a well head with a radial flow channel for pumped fluids. A spacer stand is secured to the well head. A hydraulic pump is provided with a housing secured to the spacer stand. The hydraulic pump has a hydraulic ram tied to a reciprocating annular piston having a central bore. When the annular piston moves in an upward direction the hydraulic ram moves toward an extended position extending from the housing. When the annular piston moves in a downward direction, the hydraulic ram moves toward a retracted position retracted within the housing. A polish rod extends up through the central bore of the annular piston and is held in position by a polish rod clamp positioned on top of the hydraulic ram. The polish rod moves with the hydraulic ram.

Ensemble de pompage comprenant une tête de puits dotée d'un canal d'écoulement radial pour les fluides pompés. Un socle d'écartement est fixé à la tête de puits. Une pompe hydraulique comprend un boîtier fixé au socle d'écartement. La pompe hydraulique comprend également un bélier hydraulique lié à un piston alternatif annulaire comportant un alésage central. Lorsque le piston annulaire se déplace vers le haut, le bélier hydraulique s'étire en position allongée en s'éloignant du boîtier. Lorsque le piston annulaire se déplace vers le bas, le bélier hydraulique se replie en position rétractée en revenant vers le boîtier. Une tige polie s'étire vers le haut à travers l'alésage central du piston annulaire et est maintenue en position par une attache, située au sommet du bélier hydraulique. La tige polie se déplace avec le bélier hydraulique.

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