Rotating_System[1] - RotatingSystem JosecarlosRuiz...

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Rotating System Josecarlos Ruiz Eddie Lanz
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The swivel is the heart  of the rotary drilling  system, it transfers  water at high pressure  through the drill stem  to the drill bit, which  cools and lubricates  the bit as it drills, and  flushes and forces the  cuttings up and out of  the borehole. Drilling a  well that is more than  twenty to thirty feet  Swivel
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Swivel
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  A long square or hexagonal steel bar with a hole  drilled through the middle for a fluid path. The kelly  is used to transmit rotary motion from the rotary  table or kelly bushing to the drillstring, while  allowing the drillstring to be lowered or raised  during rotation. The kelly goes through the kelly  bushing, which is driven by the rotary table. The  kelly bushing has an inside profile matching the  kelly's outside profile (either square or hexagonal),  but with slightly larger dimensions so that the kelly  can freely move up and down inside. Kelly
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Kelly System
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Is an adapter that  serves to connect the  rotary table to the  kelly. The kelly  bushing has an inside  diameter profile that  matches that of the  kelly, usually square or 
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Rotating_System[1] - RotatingSystem JosecarlosRuiz...

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