Patents Assigned to William C. Finch
  • Oil recovery from an oil-water well
    Patent number: 4019576
    Abstract: This invention relates to the recovery of oil from an oil well which normally produces a mixture of oil and water. The invention is carried out by determining the potential free water level in the well bore, draining the oil gravitationally from a point above the predetermined water level, and withdrawing the drained oil.
    Type: Grant
    Filed: November 23, 1973
    Date of Patent: April 26, 1977
    Assignees: William C. Finch, Michael P. Breston
    Inventor: William C. Finch