Patents by Inventor Michael D. Chalmers

Michael D. Chalmers 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).

  • Patent number: 4948393
    Abstract: The invention deals with separating production fluids into separate components of oil, water, sand and gas in first and second stage separators. Preheating of the production fluid prior to entry into the first stage separator is partially accomplished by direct mixing with hot processed water taken from the effluent of the first stage separator and the second stage separator. Recirculated processed water may also be used to improve sand removal from the first and second stage separators.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: August 14, 1990
    Assignee: Chevron Research Company
    Inventors: John E. Hodson, Michael D. Chalmers