Guard device

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 17/10 (2006.01)

Patent

CA 2125354

A guard device for use with a drop pipe in a well casing includes a pair of similar guard sections each being formed of a plastic material. Each section includes inner and outer arcuate members interconnected by ribs and plates. The inner arcuate member of each section engages the drop pipe and the outer arcuate member has tabs which engage the well casing to enter the drop pipe. A locking member on each section interlocks with a lock engaging member on the other section. Vertical passages through the sections accommodate electrical conductors, safety ropes and similar components to thereby minimize damage to these components.

Protecteur utilisé avec une colonne descendante dans le tubage d'un puits comprenant deux sections protectrices similaires fabriquées d'une matière plastique. Chaque section inclut des éléments intérieur et extérieur arrondis reliés par des nervures et des plaques. L'élément arrondi intérieur de chaque section s'engage dans la colonne descendante et l'élément arrondi extérieur comporte des griffes qui s'engage dans le tubage de puits pour entrer dans la colonne descendante. Un mécanisme de blocage sur chaque section s'enclenche dans une partie d'engagement par blocage dans l'autre section. Des passages verticaux dans les sections reçoivent les conducteurs électriques, les câbles de sécurité et les autres pièces semblables pour minimiser ainsi les dommages à ces composants.

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