Patent ID: 8327927

Claim:
An apparatus for performing earth borehole operations comprising: a base; a mast mounted on said base, said mast having first and second spaced mast tracks; a coiled tubing injector mounted in said mast for longitudinal movement therealong; a top drive, longitudinally movable along said mast, said top drive having a first position vertically suspended and mounted in said mast over a wellhead center, and a second position vertically suspended and laterally displaced from said wellhead center, and a frame, said frame having a first side and a second side, said first side movably engaging said first mast track, said second side movably engaging said second mast track whereby said frame can move longitudinally along said first and second spaced mast tracks, said top drive being suspended from said frame by first and second supports, said first and second supports being pivotally secured to said frame and to said top drive, one of said supports comprising a piston-cylinder assembly whereby said top drive can be moved laterally.