Patents by Inventor Brent Estes

Brent Estes 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).

  • Brine-based drilling fluids for ballast tank storage
    Patent number: 6315061
    Abstract: Drilling fluids are stored in the ballast compartments of drilling vessels to reduce the dependency of a drilling operation on the supply of drilling fluids from work boats. The composition of the brine-based drilling fluid stored in the ballast compartment is designed to provide a biostatic environment and a density appropriate for the environment in which the well is to be drilled.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: November 13, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles Boatman, Brent Estes, Leonard Morales