Patents by Inventor Douglas B. Farley

Douglas B. Farley 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).

  • Apparatus and method for wet shoe applications
    Patent number: 10961815
    Abstract: An apparatus and method are disclosed for wet shoe applications in cementing tubing in a wellbore. A wet shoe tool has a seat and an insert in a flow bore of the tool. A first wiper plug is deployed down the tubing at least behind the cement and seats on the insert, which can then be moved in the flow bore to a bypass position allowing for fluid flow through the tool to produce a wet shoe track. A second plug is deployed down the tubing behind the second plug and seats on the seat in the flow bore of the tool. The seated second plug isolates applied pressure from passing downhole end of the tool so the integrity of the tubing can be tested. The second plug is self-removable (e.g., dissolvable) in the tool to reestablish fluid communication through the flow bore of the tool.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: March 30, 2021
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Cesar G. Garcia, James A. Rochen, Tharinda Wickramasinghe, Douglas B. Farley, Jamie Inglesfield, Jobby T. Jacob, Daniel A. De Clute-Melancon
  • Apparatus and Method for Wet Shoe Applications
    Publication number: 20210047898
    Abstract: An apparatus and method are disclosed for wet shoe applications in cementing tubing in a wellbore. A wet shoe tool has a seat and an insert in a flow bore of the tool. A first wiper plug is deployed down the tubing at least behind the cement and seats on the insert, which can then be moved in the flow bore to a bypass position allowing for fluid flow through the tool to produce a wet shoe track. A second plug is deployed down the tubing behind the second plug and seats on the seat in the flow bore of the tool. The seated second plug isolates applied pressure from passing downhole end of the tool so the integrity of the tubing can be tested. The second plug is self-removable (e.g., dissolvable) in the tool to reestablish fluid communication through the flow bore of the tool.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 18, 2021
    Inventors: Cesar G. Garcia, James A. Rochen, Tharinda Wickramasinghe, Douglas B. Farley, Jamie Inglesfield, Jobby T. Jacob, Daniel A. De Clute-Melancon