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drill pipe

(in oil-well drilling or the like) any of several coupled tubes for rotating the bit and supplying drilling mud. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for drill pipe
  • drill pipe: the heavy seamless steel tubing used to rotate the drill bit and circulate the drilling mud.
  • The drill pipe is then carefully removed from the borehole and the casing and screen are set in the open hole and sealed in place.
  • Released drill pipe sling from aft rotary and attached to drill pipe on forward rotary.
  • Connections between the pump and drill pipe shall be relatively leak-free.
  • The information is transmitted to the surface via small fluctuations in the pressure of the drilling fluid inside the drill pipe.
  • Radio waves are inductively coupled to and from the drill pipe skin using loop antennas.
  • Both parties agree that the practice can dislodge the slips which hold the drill pipe in place.
  • Muds are pumped to the bottom of the well through the hollow drill pipe and out through holes in the drill bit.
  • Circulation was established, but the drill pipe was stuck in the hole.
  • Connect hose from a water pump to a swivel head to pump water through the center of a rotary drill pipe to cool the drill bit.
British Dictionary definitions for drill pipe

drill string

(in the oil industry) a pipe made of lengths of steel tubing that is attached to the drilling tool and rotates during drilling to form a bore
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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