Apparatus and methods for wedge lock prevention

E - Fixed Constructions – 21 – B

Patent

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E21B 17/03 (2006.01)

Patent

CA 2722543

In one embodiment, a tubular handling apparatus is provided with a wedge lock release mechanism that creates a clearance to allow movement by the mandrel having mating wedge surfaces relative to the tubular to release the wedge slips. In another embodiment, a tubular handling apparatus for handling a tubular includes a mandrel; a carrier coupled to the mandrel; a gripping element for engaging the tubular; an engagement member coupled to the carrier for engaging an upper portion of the tubular; and an abutment device adapted to engage the engagement member, wherein a length of the abutment device is adjustable to allow movement of the engagement member.

Dans un mode de réalisation, l'invention concerne un appareil de manutention tubulaire doté d'un mécanisme de libération d'un verrou à cale qui crée un dégagement permettant le déplacement par un mandrin présentant des surfaces à cale de liaison par rapport à l'élément tubulaire pour libérer les coins de cale. Dans un autre mode de réalisation, un appareil de manutention tubulaire comporte notamment un mandrin; un support couplé au mandrin; et un élément de préhension pour mettre en prise le l'élément tubulaire; un élément de mise en prise couplé au support pour mettre en prise une partie supérieure de l'élément tubulaire; et un dispositif de butée destiné à venir en prise avec l'élément de mise en prise, la longueur du dispositif de butée étant réglable pour permettre le déplacement de l'élément de mise en prise.

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