Sometimes the bit breaks or
Sometimes the bit breaks or becomes detached from the auger stem, leaving a fragment of hardened steel, or an entire bit, deep in the recesses of the rock. When the latter is the case, recourse is had to divers expedients, by means of implements armed with sockets and spring jaws, in order to entrap the truant bit. And it is marvellous what success generally attends these efforts to extract bits that are oftentimes two or three hundred feet below the surface. Sometimes, however, these efforts fail, and the well must be abandoned, with all the labor and anxiety that have been expended upon it.
During the progress of the boring there is more or less carburetted hydrogen gas set free. This supply is so abundant at times as to cause an ebullition in the water of the well, resembling the boiling of a pot. In the case of the flowing wells, when the vein of petroleum is reached, the gas rushes forth with such violence, and the upward pressure is so furious, as to force the implements from the well, and even the tubing, when not properly secured, has been driven through the derrick in its upward progress.
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