Drill rig

Details Drill rig Drill rig

E - Fixed Constructions

21

B

20/112, 255/17

E21B 15/00 (2006.01)

Patent

CA 1167229

ABSTRACT A mobile drilling rig having a mast which is adapted to be connected to a fixed frame such that it is able to pivot about two axes, a lower axis and an upper axis, on said frame; rotation about the lower axis placing the mast in its angle drilling position and rotation about the upper axis placing the mast in its travel position, substantially parallel to the ground.

418270

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