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