Patents by Inventor Gunnar Bothman

Gunnar Bothman 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).

  • Hole enlargement drilling device and methods for using same
    Patent number: 8875810
    Abstract: A bottomhole assembly (BHA) coupled to a drill string includes one or more controllers, and a hole enlargement device that selectively enlarges the diameter of the wellbore formed by the drill bit. The hole enlargement device includes an actuation unit that may move extendable cutting elements o the hole enlargement device between a radially extended position and a radially retracted position. The actuation unit may be responsive to a signal that is transmitted from a downhole and/or a surface location. The hole enlargement device may also include one or more position sensors that transmit a position signal indicative of a radial position of the cutting elements. In an illustrative operating mode, one or more operating parameters of the hole enlargement device may be adjusted based on one or more measured parameters. This adjustment may be done in a closed-loop or automated fashion and/or by human personnel.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: November 4, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Matthias Meister, Wolfgang Eduard Herberg, Gunnar Bothman, Joachim Treviranus, Carsten Freyer, Hans-Robert Oppelaar
  • Hole Enlargement Drilling Device and Methods for Using Same
    Publication number: 20100139981
    Abstract: A bottomhole assembly (BHA) coupled to a drill string includes one or more controllers, and a hole enlargement device that selectively enlarges the diameter of the wellbore formed by the drill bit. The hole enlargement device includes an actuation unit that may move extendable cutting elements o the hole enlargement device between a radially extended position and a radially retracted position. The actuation unit may be responsive to a signal that is transmitted from a downhole and/or a surface location. The hole enlargement device may also include one or more position sensors that transmit a position signal indicative of a radial position of the cutting elements. In an illustrative operating mode, one or more operating parameters of the hole enlargement device may be adjusted based on one or more measured parameters. This adjustment may be done in a closed-loop or automated fashion and/or by human personnel.
    Type: Application
    Filed: January 19, 2010
    Publication date: June 10, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: Matthias Meister, Wolfgang Eduard Herberg, Gunnar Bothman, Joachim Treviranus, Carsten Freyer, Hans-Robert Oppelaar