Patents by Inventor Lillard E. Korn, JR.

Lillard E. Korn, JR. 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).

  • Method of placing a fluid mixture containing compressible particles into a wellbore
    Patent number: 11359129
    Abstract: A method of placing compressible particles within a wellbore. The method first comprises accessing a wellbore. The wellbore has a first string of casing and a second string of casing, wherein the first string of casing surrounds an upper portion of the second string of casing, forming a trapped annulus. The method further includes pumping a fluid mixture down the second string of casing and back up the annulus. The fluid mixture comprises an aqueous carrier fluid having a plurality of compressible particles dispersed therein. Each of the compressible particles is fabricated to collapse in response to fluid pressure within the trapped annulus. The method additionally includes pumping cement into at least a lower portion of the annulus behind the fluid mixture, forming a column of cement, and thereby placing the fluid mixture in the annulus above the column of cement.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: June 14, 2022
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Ward E. Narhi, Sandeep A. Kibey, Sabine C. Zeilinger, Lillard E. Korn, Jr.
  • Method of Placing a Fluid Mixture Containing Compressible Particles into a Wellbore
    Publication number: 20200148936
    Abstract: A method of placing compressible particles within a wellbore. The method first comprises accessing a wellbore. The wellbore has a first string of casing and a second string of casing, wherein the first string of casing surrounds an upper portion of the second string of casing, forming a trapped annulus. The method further includes pumping a fluid mixture down the second string of casing and back up the annulus. The fluid mixture comprises an aqueous carrier fluid having a plurality of compressible particles dispersed therein. Each of the compressible particles is fabricated to collapse in response to fluid pressure within the trapped annulus. The method additionally includes pumping cement into at least a lower portion of the annulus behind the fluid mixture, forming a column of cement, and thereby placing the fluid mixture in the annulus above the column of cement.
    Type: Application
    Filed: November 12, 2019
    Publication date: May 14, 2020
    Inventors: Ward E. Narhi, Sandeep A. Kibey, Sabine C. Zeilinger, Lillard E. Korn, JR.