Patents by Inventor David A. Luft

David A. Luft 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).

  • Patent number: 10294754
    Abstract: A bottom hole assembly for performing a borehole treatment has a plurality of ported valve housings where the housings have an assembly of shifting sleeves. The first sleeve is shifted uphole to open the port in the housing and lock the first sleeve in the ports open position. A second sleeve in the same housing is shifted in the same direction as the first sleeve to close the ports in the housing. The second sleeve has profiles for shifting it up to close the housing ports and back down to reopen the housing ports after closing them.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 21, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Jeffrey B. Koch, David A. Luft, Edward A. Rapin
  • Publication number: 20180266212
    Abstract: A bottom hole assembly for performing a borehole treatment has a plurality of ported valve housings where the housings have an assembly of shifting sleeves. The first sleeve is shifted uphole to open the port in the housing and lock the first sleeve in the ports open position. A second sleeve in the same housing is shifted in the same direction as the first sleeve to close the ports in the housing. The second sleeve has profiles for shifting it up to close the housing ports and back down to reopen the housing ports after closing them.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 20, 2018
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Jeffrey B. Koch, David A. Luft, Edward A. Rapin
  • Patent number: 10012050
    Abstract: A system and method for treating a portion of a wellbore that includes a bottom hole assembly (BHA) connected to a work string. The BHA includes a packing element movable between an unset position and a set position and a locator device movable between retracted position and expanded positions. The locator device may be a locator collet. The locator collet may be expanded by a cone movable with respect to the collet. The expanded locator device is configured to engage a profile in a ported tubular within the wellbore. The engagement between the locator device and the profile selectively prevents further movement of the BHA and provides an indication of the location the BHA. The packing element may then be actuated and the wellbore treated through a port in the ported tubular. The BHA may then be moved to a different ported housing to treat another portion of the wellbore.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: July 3, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Ian Beckett, Luis A. Castro, Christopher W. Thacker, Jason Harper, Marc Carriere, Leigh Thorne, Jeffrey Koch, Justin Reyes, Bradley Collas, Cory Casemore, David Luft, Orest Zolkavich, Derek Robert Brown
  • Publication number: 20180023365
    Abstract: A system and method for treating a portion of a wellbore that includes a bottom hole assembly (BHA) connected to a work string. The BHA includes a packing element movable between an unset position and a set position and a locator device movable between retracted position and expanded positions. The locator device may be a locator collet. The locator collet may be expanded by a cone movable with respect to the collet. The expanded locator device is configured to engage a profile in a ported tubular within the wellbore. The engagement between the locator device and the profile selectively prevents further movement of the BHA and provides an indication of the location the BHA. The packing element may then be actuated and the wellbore treated through a port in the ported tubular. The BHA may then be moved to a different ported housing to treat another portion of the wellbore.
    Type: Application
    Filed: September 7, 2017
    Publication date: January 25, 2018
    Inventors: Ian Beckett, Luis A. Castro, Christopher W. Thacker, Jason Harper, Marc Carriere, Leigh Thorne, Jeffrey Koch, Justin Reyes, Bradley Collas, Cory Casemore, David Luft, Orest Zolkavich, Derek Robert Brown
  • Patent number: 9828825
    Abstract: A system and method for treating a portion of a wellbore that includes a bottom hole assembly (BHA) connected to a work string. The BHA includes a packing element movable between an unset position and a set position and a locator device movable between retracted position and expanded positions. The locator device may be a locator collet. The locator collet may be expanded by a cone movable with respect to the collet. The expanded locator device is configured to engage a profile in a ported tubular within the wellbore. The engagement between the locator device and the profile selectively prevents further movement of the BHA and provides an indication of the location the BHA. The packing element may then be actuated and the wellbore treated through a port in the ported tubular. The BHA may then be moved to a different ported housing to treat another portion of the wellbore.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: November 28, 2017
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Ian Beckett, Luis A Castro, Christopher W Thacker, Jason Harper, Marc Carriere, Leigh Thorne, Jeffrey Koch, Justin Reyes, Bradley Collas, Cory Casemore, David Luft, Orest Zolkavich, Derek Robert Brown
  • Publication number: 20160298404
    Abstract: A system and method for treating a portion of a wellbore that includes a bottom hole assembly (BHA) connected to a work string. The BHA includes a packing element movable between an unset position and a set position and a locator device movable between retracted position and expanded positions. The locator device may be a locator collet. The locator collet may be expanded by a cone movable with respect to the collet. The expanded locator device is configured to engage a profile in a ported tubular within the wellbore. The engagement between the locator device and the profile selectively prevents further movement of the BHA and provides an indication of the location the BHA. The packing element may then be actuated and the wellbore treated through a port in the ported tubular. The BHA may then be moved to a different ported housing to treat another portion of the wellbore.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 13, 2016
    Inventors: Ian Beckett, Luis A. Castro, Christopher W. Thacker, Jason Harper, Marc Carriere, Leigh Thorne, Jeffrey Koch, Justin Reyes, Bradley Collas, Cory Casemore, David Luft, Orest Zolkavich, Derek Robert Brown
  • Patent number: 8024430
    Abstract: A method for installing software includes receiving configuration information at a server and installing a server software module on the server. The method further includes transmitting a client software module associated with the server software module to a plurality of clients and initiating, from the server, installation of the client software module on the plurality of clients. Additionally, the method includes configuring the client based, at least in part, on the configuration information received by the server.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: September 20, 2011
    Assignee: Computer Associates Think, Inc.
    Inventors: David A. Luft, Sarad Thapa, Venkatesh Gandham
  • Publication number: 20070088799
    Abstract: A method for installing software includes receiving configuration information at a server and installing a server software module on the server. The method further includes transmitting a client software module associated with the server software module to a plurality of clients and initiating, from the server, installation of the client software module on the plurality of clients. Additionally, the method includes configuring the client based, at least in part, on the configuration information received by the server.
    Type: Application
    Filed: February 14, 2006
    Publication date: April 19, 2007
    Inventors: David Luft, Sarad Thapa, Venkatesh Gandham