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The Draworks is the "winch" that the drilling line is attached. This is ran in usually a 4, 6 or 8 part system (like a block and tackle) that gives the mechanical advantage to be able to hoist the drill string in and out of the well. From the blocks you would hang either a Top Drive or a Kelly Bar. The top drive or kelly is then used to lift and lower components into a well bore.

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12y ago
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Q: A hoisting device used on oil wells?
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