31. Their location was determined when they tapped on the drill pipe that sunk a 6-inch hole to the air pocket. 32. In this instance the weight may be applied by running the drill pipe in compression in the high angle section. 33. It's closed a mill for seamless pipes for the oil and gas industry, and relocated a drill pipe mill to China. 34. For wells deeper than about 10 metres, and especially when heavier metal drill pipe is used, a lifting device is installed. 35. The top drive allows the drilling rig to drill the longer section of a stand of drill pipe in one operation. 36. This is the leading manufacturer of drill pipe in Mexico, and the expanding oil service sector is scrambling for supplies, he says. 37. As the bit drills through the earth, fluids called drilling mud are pumped though the drill pipe and come out drill bit. 38. The increasing severity of the weather forced the rig workers to hang the drill pipe in the hole on the lower rams. 39. Adkins and his research associates say laymen need to let go of the idea that the steel in drill pipe is rigid. 40. The rig workers, however, did not have time to lay down the 90 foot lengths of drill pipe that remained in the derrick.
