Patents by Inventor Pat R. Perri

Pat R. Perri 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 Hydrocarbons Using Horizontal Wells
    Publication number: 20090301704
    Abstract: A method of drilling a wellbore useful for the recovery of hydrocarbons from a subsurface reservoir, penetrated by one or more wellbores previously injected with steam, comprises drilling a wellbore having a substantially horizontal productive portion lying within the subsurface reservoir.
    Type: Application
    Filed: May 16, 2007
    Publication date: December 10, 2009
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Peter M. Dillett, Pat R. Perri