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Download: Circulating System

Description: The circulating system pumps drilling fluid down the hole through a series of pipes. Then it pumps the drilling fluid, or mud, out of the bit at the end of pipe at the bottom of the hole a all the way back to the surface. The mud that returns to the surface carries drill cuttings and clears the bottom of the hole. Learn more about the mechanics of circulating systems by downloading this quick reference below.

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Circulating System