Patents by Inventor William D. Friend, JR.

William D. Friend, 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 and apparatus for isolating and treating discrete zones within a wellbore
    Patent number: 9267348
    Abstract: Methods and apparatus for conducting fracturing operations using a wellbore fracturing assembly are described. The assembly may be mechanically set and released from a wellbore using a coiled tubing string. The assembly may include a pair of spaced apart packers for straddling the area of interest, an injection port disposed between the packers for injecting fracturing fluid into the area of interest, and an anchor for securing the assembly in the wellbore. At least one of the packers includes a pressure balanced mandrel. After conducting the fracturing operation, the assembly may be relocated to another area of interest to conduct another fracturing operation.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 23, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Gary D. Ingram, William D. Friend, Jr., Walter Stone Thomas Fagley, IV
  • METHOD AND APPARATUS FOR ISOLATING AND TREATING DISCRETE ZONES WITHIN A WELLBORE
    Publication number: 20120090858
    Abstract: Methods and apparatus for conducting fracturing operations using a wellbore fracturing assembly are described. The assembly may be mechanically set and released from a wellbore using a coiled tubing string. The assembly may include a pair of spaced apart packers for straddling the area of interest, an injection port disposed between the packers for injecting fracturing fluid into the area of interest, and an anchor for securing the assembly in the wellbore. At least one of the packers includes a pressure balanced mandrel. After conducting the fracturing operation, the assembly may be relocated to another area of interest to conduct another fracturing operation.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Inventors: Gary D. Ingram, William D. Friend, JR., Walter Stone Thomas Fagley, IV