Patents by Inventor George Herbert Mayo

George Herbert Mayo 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 formation pressure control while drilling
    Patent number: 6823950
    Abstract: A method for addressing the problem known as formation breathing occurring during the drilling of a subsea well in an earth formation in performing a series of leak off tests to determine the earth formation fracture propagation pressure and the earth formation fracture reopen pressure and maintaining the hydrostatic pressure on the earth formation in a range between the fracture reopen pressure and the fracture propagation pressure.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: November 30, 2004
    Assignee: Shell Oil Company
    Inventors: William Henry von Eberstein, Jr., George Herbert Mayo, Mark Allen Weaver, Eric van Oort, Ernest Benedict Kotara, Jr.
  • Method for formation pressure control while drilling
    Publication number: 20030127230
    Abstract: A method for addressing the problem known as formation breathing occurring during the drilling of a subsea well in an earth formation in performing a series of leak off tests to determine the earth formation fracture propagation pressure and the earth formation fracture reopen pressure and maintaining the hydrostatic pressure on the earth formation in a range between the fracture reopen pressure and the fracture propagation pressure.
    Type: Application
    Filed: December 3, 2002
    Publication date: July 10, 2003
    Inventors: William Henry von Eberstein,, George Herbert Mayo, Mark Allen Weaver, Eric van Oort, Ernest Benedict Kotara,