Patents by Inventor John Reis

John Reis 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).

  • Production of oil from low permeability formations by sequential steam fracturing
    Patent number: 5085276
    Abstract: A production method for low permeability formations is disclosed. Short steam cycles followed by production of fluids to the surface from a single wellbore is described. The method may be practiced in sequential manner, thereby accessing multiple intervals of hydrogen containing formation. Reflashing of steam into the wellbore allows production of fluids to the surface without a pump in the wellbore.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: February 4, 1992
    Assignee: Chevron Research and Technology Company
    Inventors: Luis F. Rivas, John Reis, Mridul Kumar