Patents by Inventor Alex S. McKay

Alex S. McKay has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Recovery of heavy crude oil or tar sand oil or bitumen from underground formations
    Patent number: 5145002
    Abstract: Heavy crude oil or tar sand oil or bitumen is recovered from an underground formation containing the same by introducing into said formation via an injection well or conduit a hot alkaline aqueous fluid so as to bring about the movement or migration or stripping of said heavy crude oil or tar sand oil or bitumen from said formation into said hot alkaline aqueous fluid at the interface between said hot alkaline aqueous fluid and said heavy crude oil or tar sand oil or bitumen-containing formation as said hot alkaline aqueous fluid moves along within said formation from said injection well or conduit to a production well or conduit for the recovery of the resulting produced heavy crude oil or tar sand oil or bitumen from said formation as an emulsion via said production well or conduit.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: September 8, 1992
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventor: Alex S. McKay
  • Recovery of heavy crude oil or tar sand oil or bitumen from underground formations
    Patent number: 4846275
    Abstract: Heavy crude oil or tar sand oil or bitumen is recovered from an underground formation containing the same by introducing into said formation via an injection well or conduit a hot alkaline aqueous fluid so as to bring about the movement or migration or stripping of said heavy crude oil or tar sand oil or bitumen from said formation into said hot alkaline aqueous fluid at the interface between said hot alkaline aqueous fluid and said heavy crude oil or tar sand oil or bitumen-containing formation as said hot alkaline aqueous fluid moves along within said formation from said injection well or conduit to a production well or conduit for the recovery of the resulting produced heavy crude oil or tar sand oil or bitumen from said formation as an emulsion via said production well or conduit.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: July 11, 1989
    Inventor: Alex S. McKay