keannu
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- Dec 27, 2010
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- Student or Learner
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Sorry, this may need some scientific knowledge. Why do you think "equalized pressure in the vicinity of a well" causes more energy to pump the oil? I can't get how pressure equlization happens in the vicinity. This is a workbook for the college entrance exam.
st165)If a sizable oil reserve is discovered, wells are drilled to tap into the oil reserve. Oil in the ground flows at about the same rate as damp in a stone foundation, the one major difference being that the oil is held at much higher pressure. When a new well is drilled, the open hole gives free passage to the pressurized oil immediately around it, which then surges to the surface. However, once the pressure has been equalized in the immediate vicinity of the drill hole, it takes more and more energy to pump the oil through the rock or sediment to the well. Eventually you will reach a point where you must invest as much energy to pump the oil as you will get out of it. When this point is reached, production ends and the well is capped forever.
st165)If a sizable oil reserve is discovered, wells are drilled to tap into the oil reserve. Oil in the ground flows at about the same rate as damp in a stone foundation, the one major difference being that the oil is held at much higher pressure. When a new well is drilled, the open hole gives free passage to the pressurized oil immediately around it, which then surges to the surface. However, once the pressure has been equalized in the immediate vicinity of the drill hole, it takes more and more energy to pump the oil through the rock or sediment to the well. Eventually you will reach a point where you must invest as much energy to pump the oil as you will get out of it. When this point is reached, production ends and the well is capped forever.