Patents by Inventor Willroe C. Jones

Willroe C. Jones 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 forming cement seals in downhole pipes
    Patent number: 6170574
    Abstract: A method of forming a seal in a downhole pipe comprising positioning a dump bailer containing a predetermined amount of a cement slurry at a desired location in a pipe disposed downhole in an earth borehole, displacing the cement slurry from the dump bailer, and allowing the cement slurry to set and form a seal, wherein the cement slurry comprises a pumpable slurry containing a hydraulic cement; water; a water-soluble salt of a metal selected from the class consisting of alkali metals, alkaline earth metals, zinc, and mixtures thereof; a dispersant comprising an anionic surface-active agent of the sulfonated naphthlalene; and magnesium chloride.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: January 9, 2001
    Assignee: Downhole Solutions, Inc.
    Inventor: Willroe C. Jones