Patents by Inventor Richard R. Lafitte

Richard R. Lafitte 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).

  • Through tubing diverter for multi-lateral treatment without top string removal
    Patent number: 10082003
    Abstract: A main bore is drilled and a treatment assembly is located. A packer is located to support a whipstock for drilling the lateral. This packer serves as a lower seal on a main bore diverter. The whipstock is installed on the packer and a mill drills a window and the lateral. The mill is pulled and the whipstock removed with a fixed lug tool. A bottom hole assembly is run into the lateral which includes a diverter that is landed by the window. If cementing is called for it is done at this time. A top string is installed that isolates the upper casing. The lateral is treated with the main bore isolated. The diverter is retrieved through the top string. The main bore diverter is run in through top string and landed in the junction with the window and lateral isolated. The main bore diverter is removed through the top string. The treatment bottom hole assembly has a series of sliding sleeves operated by a single size ball.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: September 25, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Joseph Sheehan, Mihai Marcu, Dennis M. Collins, Jr., Scott F. Donald, Richard R. Lafitte
  • Through Tubing Diverter for Multi-lateral Treatment without Top String Removal
    Publication number: 20170328177
    Abstract: A main bore is drilled and a treatment assembly is located. A packer is located to support a whipstock for drilling the lateral. This packer serves as a lower seal on a main bore diverter. The whipstock is installed on the packer and a mill drills a window and the lateral. The mill is pulled and the whipstock removed with a fixed lug tool. A bottom hole assembly is run into the lateral which includes a diverter that is landed by the window. If cementing is called for it is done at this time. A top string is installed that isolates the upper casing. The lateral is treated with the main bore isolated. The diverter is retrieved through the top string. The main bore diverter is run in through top string and landed in the junction with the window and lateral isolated. The main bore diverter is removed through the top string. The treatment bottom hole assembly has a series of sliding sleeves operated by a single size ball.
    Type: Application
    Filed: May 16, 2016
    Publication date: November 16, 2017
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Joseph Sheehan, Mihai Marcu, Dennis M. Collins, JR., Scott F. Donald, Richard R. Lafitte