Patents by Inventor Simone E.A. LUMSDEN

Simone E.A. LUMSDEN 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).

  • Surfactants for use in liquid suspensions of lightweight beads
    Patent number: 10723934
    Abstract: A method for suspending lightweight beads in a fluid includes combining lightweight beads, a fluid, and a surfactant to form a liquid additive. The liquid additive may be used to reduce the density of a wellbore fluid. The liquid additive or wellbore fluid can be combined with a cementitious material to form a lightweight cement composition.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: July 28, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Simone E.A. Lumsden, Sam J. Lewis, Greg R. Hundt
  • SURFACTANTS FOR USE IN LIQUID SUSPENSIONS OF LIGHTWEIGHT BEADS
    Publication number: 20180355236
    Abstract: A method for suspending lightweight beads in a fluid includes combining lightweight beads, a fluid, and a surfactant to form a liquid additive. The liquid additive may be used to reduce the density of a wellbore fluid. The liquid additive or wellbore fluid can be combined with a cementitious material to form a lightweight cement composition.
    Type: Application
    Filed: February 9, 2016
    Publication date: December 13, 2018
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Simone E.A. LUMSDEN, Sam J. LEWIS, Greg R. HUNDT