9df11f1f7372ec7bffff902fffffe417

9df11f1f7372ec7bffff902fffffe417 - cuttings flowing from...

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How does a circulating system work? Pumps a special fluid called “drilling fluid "or “drilling mud” down the hole through a series of pipes, out of the bit on the end of the pipe at the bottom of the hole and back up to the surface.
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Mud pumps: large heavy duty pumps, heart of the circulating system. Mud pits: Steel tanks that hold mud Stand Pipe: Rigid pipe that conducts mud from the pump, up one leg of the derrick and to the rotary hose. Rotary Hose: Flexible, must move downward as the hole is drilled deeper, also moves upward when the crew adds sections of pipe to the drill sting. Mud Pump
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Annulus: Space between the outside of the drill collars and drill string and the inside of the hole. Mud cuttings leave the well through a pipe call the mud return line. Shale Shaker: Vibrating system that has mud and
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Unformatted text preview: cuttings flowing from the mud return line. Shale Slide: Slanted trough that the cuttings fall through after they vibrate off the shale shaker. Reserve Pit: Serves mainly as a disposal area Degasser: removes gas from mud Desander: a centrifugal device for removing sand from drilling fluid to prevent abrasion of pumps. Can be operated mechanically or by a fast moving stream of fluid inside a special cone shaped vessel. Wall cake: Thin, impermeable cake on the walls of the hole. Drilling fluid: A mixture of water,clay,and special minerals and chemicals.-Removes cuttings from the hole-Cools and lubricates bit as it turns on the bottom-The mud also exerts pressure inside the hole, this pressure keeps fluids that may be in the formation from entering the hole and blowing out of the surface....
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This note was uploaded on 10/12/2011 for the course PRTR 1301 taught by Professor Christopherpaulk during the Spring '11 term at Lone Star College System.

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9df11f1f7372ec7bffff902fffffe417 - cuttings flowing from...

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