E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/32 (2006.01)
Patent
CA 2617699
A downhole apparatus comprises a body (14), extendable members (12) mounted on the body (14) and being movable between retracted and extended configurations, and a remotely operable retaining arrangement for maintaining the extendable members in the retracted configuration. The extendable members (12) may be cutters, such that the apparatus may be a cutting apparatus, such as a reamer. An operator may control the apparatus to retain the cutting members (12) in the retracted configuration, or prevent the extension of the cutting members (12).
Appareil de fond de trou, comprenant un corps (14), des éléments déployables (12) montés sur le corps (14) et mobiles entre des positions escamotée et déployée, et un dispositif de retenue télécommandé servant à maintenir les éléments déployables dans la position déployée. Les éléments déployables (12) peuvent être des lames, l~appareil formant alors un appareil de coupe tel qu~un élargisseur. Un opérateur peut commander l~appareil de façon à maintenir les éléments de coupe (12) dans la position escamotée ou à en bloquer le déploiement.
Andergauge Limited
Lambert Intellectual Property Law
LandOfFree
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