Centralizer

Details Centralizer Centralizer

E - Fixed Constructions

21

B

E21B 17/10 (2006.01)

Patent

CA 2320747

A centralizer which comprises a pair of annular bands (2, 3) which are spaced apart by a plurality of hollow members (4 to 9) characterised in that said hollow members (4 to 9) are each provided with at least one window (24, 25, 26) having a roller (12, 13, 14) freely rotatably mounted therein.

L'invention concerne un centreur comprenant une paire de bandes annulaires (2, 3) séparées par une pluralité d'éléments creux (4 à 9), qui se caractérise en ce que lesdits éléments creux (4 à 9) sont munis chacun d'au moins une fenêtre (24, 25, 26) dans laquelle est monté un rouleau (12, 13, 14) tournant librement.

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