Patents by Inventor Randolph Paul Istre

Randolph Paul Istre 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).

  • High energy in-line hydraulic shearing unit for oilfield drilling fluids
    Patent number: 9476270
    Abstract: Disclosed is an apparatus and method for shearing well drilling fluid mixtures containing an emulsifier, and utilizing pumping the fluids through a plurality of nozzles, reducing the size of the fluid droplets as they pass through the nozzles, discharging the fluid droplets into a output chamber where the emulsifier surrounds the smaller droplets with the nozzle discharges aligned to intersect in the stabilization chamber.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: October 25, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Randolph Paul Istre, Kazi M. Rashid, Timothy N. Harvey, Harry Todd Lynch, Michael Alan Moore
  • HIGH ENERGY IN-LINE HYDRAULIC SHEARING UNIT FOR OILFIELD DRILLING FLUIDS
    Publication number: 20130105164
    Abstract: Disclosed is an apparatus and method for shearing well drilling fluid mixtures containing an emulsifier, and utilizing pumping the fluids through a plurality of nozzles, reducing the size of the fluid droplets as they pass through the nozzles, discharging the fluid droplets into a output chamber where the emulsifier surrounds the smaller droplets with the nozzle discharges aligned to intersect in the stabilization chamber.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 2, 2013
    Inventors: Randolph Paul Istre, Kazi M. Rashid, Timothy N. Harvey, Harry Todd Lynch, Michael Alan Moore