Anti-rotation device for use with well tools

Details Anti-rotation device for use with well tools Anti-rotation device for use with well tools

E - Fixed Constructions

21

B

E21B 33/16 (2006.01) E21B 17/14 (2006.01) E21B 29/00 (2006.01) E21B 33/12 (2006.01)

Patent

CA 2381212

A drillable, anti-rotation device (10) for limiting the rotation of a downhole tool, such as a cement plug, when drilling out the downhole tool. The drillable, anti-rotation device (10) com-prises a drillable sleeve (12) connected within a non-drillable outer tubular member (20) connected within a pipe string. The sleeve (12) has one or more grooves (46) or other indentation, and/or one or more ribs (14) or other protrusions extending inwardly within the interior of the device for gripping or otherwise retarding the ro-tation of such downhole tool.

L'invention concerne un dispositif antirotation forable (10), tel qu'un bouchon de ciment, servant à limiter la rotation d'un équipement fond de trou pendant l'extraction de ce dernier. Le dispositif antirotation forable (10) comprend un manchon forable (12) relié à un élément tubulaire extérieur non forable (20) monté à l'intérieur d'une colonne de tubes. Le manchon (12) comporte une ou plusieurs rainures (46) ou autre dentelures, et une ou plusieurs nervures (14) ou autres protrusions s'étendant vers l'intérieur du dispositif pour bloquer ou autrement ralentir la rotation de l'équipement fond de trou.

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