Patents by Inventor M. Saidi

M. Saidi 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).

  • Method for recovering oil from an underground formation
    Patent number: 4364431
    Abstract: Method for recovering oil from an underground formation consisting of blocks of relatively low permeability with an oil-wet pore space containing oil surrounded by a fracture network of relatively high permeability by supplying to the fracture network an aqueous solution of a surfactant adapted for decreasing the surface tension between water and oil and displacing the oil from the oil-wet pore space of the blocks.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: December 21, 1982
    Assignees: National Iranian Oil Company, Shell Internationale Research Maatschappij B.V.
    Inventors: Ali M. Saidi, Frans T. Hesselink