The top drive is one of the components of the drilling rig that is used to rotate the drill string during drilling, having 1000 horsepower, which rotates the shaft to which the drill string is attached. It decreases th.
[pdf] By Gary Ganson, CIH, CSP Drilling crews can become complacent when the majority of the time they leave the job site without incident. The Earth’s crust contains all the hydrocarbons we know as fossil f.
[pdf] A top drive is a mechanical device on a that provides clockwise torque to the to drill a . It is an alternative to the and . It is located at the place below the traveling block and moves vertically up and down the derrick.
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