Tubular handling apparatus and a drilling rig

Details Tubular handling apparatus and a drilling rig Tubular handling apparatus and a drilling rig

E - Fixed Constructions

21

B

E21B 19/15 (2006.01) F16L 1/19 (2006.01) F16L 1/20 (2006.01)

Patent

CA 2577949

The invention relates to a tubular handling apparatus for moving tubulars between a substantially horizontal transfer station and a second transfer station. The apparatus comprises a base and a boom, rotatable with respect to the base between a lowered position and a raised position by boom rotation drive means in a boom rotation direction around a horizontal boom rotation axis. Furthermore, the apparatus comprises a gripper, rotatably attached to the boom and adapted for gripping the tubular, which gripper is rotatable about a gripper rotation axis by a gripper rotation drive means in a gripper rotation direction. According to the invention, the gripper rotation axis is parallel to and spaced from the horizontal boom rotation axis and in that the gripper rotation drive means provide a gripper rotation direction opposite to the boom rotation direction.

La présente invention concerne un appareil de manutention tubulaire pour déplacer des tubes entre une station de transfert sensiblement horizontale et une seconde station de transfert. L~appareil comprend une base et une flèche, pouvant tourner par rapport à la base entre une position basse et une position haute autour d~un axe de rotation de la flèche horizontale. En outre, l~appareil comprend une griffe, fixée de façon rotative à la flèche et conçue pour saisir le tube, ladite griffe pouvant pivoter autour d~un axe de rotation de la griffe par un moyen d~entraînement de rotation de la griffe dans une direction de rotation de la griffe. Selon l~invention, l~axe de rotation de la griffe est parallèle et non jointif à l~axe de rotation de la flèche horizontale ; le moyen d~entraînement de rotation de la griffe fournit une direction de rotation de la griffe opposée à la direction de rotation de la flèche.

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