Patent ID: 7383879

Claim:
A service rig, comprising: a mast having a traveling block; a continuous well string injection unit suspended in operative position from the traveling block by coupling of the traveling block at least to a first suspension point on a first side of the continuous well string injection unit and to a second suspension point on a second side of the continuous well string injection unit with the injection unit directly below the traveling block, the continuous well string injection unit including at least a first hydraulic motor and cooperating continuous well string gripping chains connected to be driven by the at least first hydraulic motor; continuous well string inserted into the continuous well string injection unit between the first side and the second side of the continuous well string injection unit; a hydraulic power supply for the continuous well string injection unit provided adjacent the mast, the at least first hydraulic motor being connected to receive pressurized fluid from the hydraulic power supply; and the hydraulic power supply being a hydraulic power supply previously used for power tongs.