| 摘要 |
A method and apparatus for providing additional torque in a top drive system for rotating a tubular during tubular drilling, running, and/or handling operations. In one embodiment, a gear arrangement is operatively connected to a top drive of the top drive system to increase the amount of available torque for rotating a tubular. In another embodiment, a gear box is operatively connected to the top drive to boost the amount of torque available for rotating the tubular.
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