Patents by Inventor Alasdair R. Tait

Alasdair R. Tait 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).

  • Publication number: 20160326822
    Abstract: A control line cutting tool is mounted for rotation in response to lifting the cut segment. The blade is oriented to cut as the cutter is forced to rotate to follow a spiral groove in the portion of the body below the cut. When the follower pin in the cutter reaches the end of the spiral slot all the control lines have been cut with minimal stress on the control lines to accomplish the cut. The pin then enters a longitudinal slot to allow separation of the body above the cut from the remaining portion in the borehole supported by a packer.
    Type: Application
    Filed: November 10, 2015
    Publication date: November 10, 2016
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Alasdair R. Tait
  • Patent number: 9428977
    Abstract: An actuation tool uses a lock that when released allows a moving magnet to move into position to repel another magnet. Alternatively a magnetic field can be triggered in a stationary magnet such as one delivered on wireline, for example, to accomplish tool actuation. The repelling force on the second magnet moves it away from a locking position to allow another lock to retract and release the stored potential energy, where the release of the potential energy creates kinetic energy to drive an actuation assembly to set the tool. In a preferred application the tool can be a liner hanger. The release device can be a selectively energized electromagnet or a solenoid that shifts at least one magnet into alignment with at least one second magnet so as to defeat the second magnet from effectively supporting dogs that retain the potential energy whose movement can set the tool.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: August 30, 2016
    Assignee: Baker Hughes Incorporated
    Inventor: Alasdair R. Tait
  • Publication number: 20150047824
    Abstract: An actuation tool uses a lock that when released allows a moving magnet to move into position to repel another magnet. Alternatively a magnetic field can be triggered in a stationary magnet such as one delivered on wireline, for example, to accomplish tool actuation. The repelling force on the second magnet moves it away from a locking position to allow another lock to retract and release the stored potential energy, where the release of the potential energy creates kinetic energy to drive an actuation assembly to set the tool. In a preferred application the tool can be a liner hanger. The release device can be a selectively energized electromagnet or a solenoid that shifts at least one magnet into alignment with at least one second magnet so as to defeat the second magnet from effectively supporting dogs that retain the potential energy whose movement can set the tool.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 19, 2015
    Applicant: Baker Hughes Incorporated
    Inventor: Alasdair R. Tait
  • Patent number: 8893807
    Abstract: An actuation tool uses a lock that when released allows a moving magnet to move into position to repel another magnet. The repelling force on the second magnet moves it away from a locking position on a stored potential energy system where the release of the potential energy creates kinetic energy to drive an actuation assembly to set the tool. In a preferred application the tool can be a liner hanger. The release device can be a selectively energized electromagnet or a solenoid that shifts at least one magnet into alignment with at least one second magnet so as to defeat the second magnet from effectively storing the potential energy that can set the tool when the lock is defeated.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Alasdair R. Tait
  • Publication number: 20120234530
    Abstract: An actuation tool uses a lock that when released allows a moving magnet to move into position to repel another magnet. The repelling force on the second magnet moves it away from a locking position on a stored potential energy system where the release of the potential energy creates kinetic energy to drive an actuation assembly to set the tool. In a preferred application the tool can be a liner hanger. The release device can be a selectively energized electromagnet or a solenoid that shifts at least one magnet into alignment with at least one second magnet so as to defeat the second magnet from effectively storing the potential energy that can set the tool when the lock is defeated.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 20, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Alasdair R. Tait