E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/16 (2006.01) E21B 15/00 (2006.01) E21B 19/20 (2006.01)
Patent
CA 2753744
A device for tripping, in which, at a drill-floor opening (211) which is arranged to receive a pipe string (1), two or more cooperating pipe--handling units (3, 3') are arranged, each, independently of the other (s) or in cooperation with the other (s), being arranged to releasably hold the pipe string (1) fixed and to move the pipe string (1) in its axial direction, and also to move a pipe section (11) in the axial direction (1) of the pipe string (1) and rotate the pipe section (11) around the axis of the pipe string (1).
L'invention porte sur un dispositif d'avance, dans lequel, au niveau d'une ouverture de plancher de forage (211) qui est agencée pour recevoir un train de tiges (1), deux ou plusieurs unités de manipulation de tige coopérant (3, 3') sont disposées, chacune, indépendamment de l'autre ou des autres ou en coopération avec l'autre ou les autres, étant agencée de façon à maintenir fixe le train de tiges (1) de façon libérable et à déplacer le train de tiges (1) dans sa direction axiale, et, également, à déplacer une section de tige (11) dans la direction axiale (1) du train de tiges (1) et à faire tourner la section de tige (11) autour de l'axe du train de tiges (1).
Grinrod Mads
Krohn Helge
Gowling Lafleur Henderson Llp
West Drilling Products As
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