Science: Rejuvenation

An apparently exhausted oil field may be "rejuvenated" by a new water-flooding process which has been demonstrated practically in the fields of Bradford, McKeesport and Murraysville, Pa. In time the wells may refill and produce several times the quantity originally furnished. At Houston, Tex., the process was described by Roswell H. Johnson, well-known eugenist and professor of oil and gas production in the University of Pittsburgh, at the annual meeting of the American Association of Petroleum Engineers. The water is let into an old well; it spreads out through the saturated oil sands...

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