Patents by Inventor Eric Simon Provost

Eric Simon Provost 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).

  • Methods for recovery and reuse of lost circulation material
    Patent number: 7568535
    Abstract: A system for recovering lost circulation material from spent drilling fluid, the spent drilling fluid containing lost circulation material, drilling fluid, and undesirable solids, the system having alternating separation apparatuses, including sizing apparatus, destiny/shear separation apparatus, and sizing apparatus; and methods for using such a system.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: August 4, 2009
    Assignee: National Oilwell Varco LP
    Inventors: Thomas Robert Larson, Eric Simon Provost
  • Methods for recovery and reuse of lost circulation material
    Publication number: 20090145664
    Abstract: A system for recovering lost circulation material from spent drilling fluid, the spent drilling fluid containing lost circulation material, drilling fluid, and undesirable solids, the system having alternating separation apparatuses, including sizing apparatus, density/shear separation apparatus, and sizing apparatus; and methods for using such a system.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 11, 2009
    Inventors: Thomas Robert Larson, Eric Simon Provost