Patents by Inventor Willie P. RENEAU

Willie P. RENEAU 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).

  • Additives for oil-based drilling fluids
    Patent number: 9328280
    Abstract: An additive for a wellbore treatment fluid comprising a sulfonated asphalt compound comprising particles having a D90 particle size of less than about 215 ?m. A wellbore treatment fluid comprising (i) an oleaginous component and (ii) a sulfonated asphalt wherein the sulfonated asphalt comprises particles having a D90 of less than about 215 ?m.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: May 3, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Marshall D. Bishop, Willie P. Reneau, Frank E. Evans, John E. Anderson
  • Additives for Oil-Based Drilling Fluids
    Publication number: 20140336085
    Abstract: An additive for a wellbore treatment fluid comprising a sulfonated asphalt compound comprising particles having a D90 particle size of less than about 215 ?m. A wellbore treatment fluid comprising (i) an oleaginous component and (ii) a sulfonated asphalt wherein the sulfonated asphalt comprises particles having a D90 of less than about 215 ?m.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 13, 2014
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Marshall D. BISHOP, Willie P. RENEAU, Frank E. EVANS, John E. ANDERSON