Patents by Inventor Dean Fleischhacker

Dean Fleischhacker 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 clearing a wellbore
    Patent number: 9982499
    Abstract: A method and a downhole apparatus for clearing a wellbore are disclosed. The method locates a mill in the wellbore about the obstructions, introduces a driving fluid flow along a driving flow path from surface to the mill, and introduces a circulation fluid flow along a circulation flow path from surface into a wellbore annulus at a location in the wellbore above the mill. Then the mill is driven by the introduced driving fluid flow to mill the obstructions; and milled obstructions are circulated to the surface via the wellbore annulus using the introduced circulation fluid and gas flow. At least a portion of the circulation flow path is within the driving flow path.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: May 29, 2018
    Assignee: Quantum Downhole Systems Inc.
    Inventors: Dean Fleischhacker, Mike Mazerolle, Steven Winkler
  • METHOD AND APPARATUS FOR CLEARING A WELLBORE
    Publication number: 20170247967
    Abstract: A method and a downhole apparatus for clearing a wellbore are disclosed. The method locates a mill in the wellbore about the obstructions, introduces a driving fluid flow along a driving flow path from surface to the mill, and introduces a circulation fluid flow along a circulation flow path from surface into a wellbore annulus at a location in the wellbore above the mill. Then the mill is driven by the introduced driving fluid flow to mill the obstructions; and milled obstructions are circulated to the surface via the wellbore annulus using the introduced circulation fluid and gas flow. At least a portion of the circulation flow path is within the driving flow path.
    Type: Application
    Filed: February 29, 2016
    Publication date: August 31, 2017
    Inventors: Dean Fleischhacker, Mike Mazerolle, Steven Winkler