Sentence Examples


  • In 1771 Thomas Jefferson described a " burning spring " in the Kanawha Valley, and when wells were drilled for salt brine near Charleston petroleum and natural gas were found here before there was any drilling for oil in Pennsylvania.
  • If Peter really thought of taking the administration into his own hands, he very soon abandoned the idea and returned to the irregular suburban life he had led during his half- Peter the sister's regency - associating with foreigners who could Great, teach him the mechanical arts of the West, drilling 1689- troops, building and sailing boats, forming projects 1725.
  • The leading features of Tull's husbandry are his practice of laying the land into narrow ridges of 5 or 6 ft., and upon the middle of these drilling one, two, or three rows, distant from one another about 7 in.
  • After drilling had been carried to a depth of 69 feet, on the 28th of August 1859, the tools suddenly dropped into a crevice, and on the following day the well was found to have " struck oil."
  • It is evident that accurate knowledge of the character and structure of the rock-formations in petroliferous territories is of the greatest importance in enabling the expert to select favourable sites for drilling operations; hence on well-conducted petroleumproperties it is now customary to note the character and thickness of the strata perforated by the drill, so that a complete section may be prepared from the recorded data.

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