Optimized machining process for cutting tubulars downhole

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 29/00 (2006.01) E21B 29/10 (2006.01)

Patent

CA 2681698

The tubular cutter disclosed herein is useful for severing downhole tubulars and comprises a drive system, a pivoting system, a cutting head, and a cutting member. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blade away from the cutting head. In one embodiment, the cutting head includes a cutting member that pivotally extends from the cutting head upon rotation of the cutting head.

L'invention concerne un outil de découpe de tubulaires pour découper des tubulaires de fond de trou, qui comprend un système d'entraînement, une tête de découpe et un élément de découpe. La découpe est effectuée par actionnement rotatif de la tête de découpe avec un moteur associé, puis par extension radiale d'une lame de découpe à l'opposé de la tête de découpe. Dans un mode de réalisation, la tête de découpe comprend un élément de découpe qui s'étend par pivotement depuis la tête de découpe après rotation de cette dernière.

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