Patents by Inventor Joachim Siher

Joachim Siher 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).

  • Adjustable downhole motors and methods for use
    Patent number: 7975780
    Abstract: The present invention relates to systems and methods for controlling downhole motors and drilling systems incorporating such systems and methods. One aspect of the invention provides a downhole drilling system including: a downhole motor, a transmission coupled to the downhole motor, and a drill bit coupled to the transmission. Another aspect of the invention provides a method of drilling a borehole in a subsurface formation including the steps of: providing a drill string including a downhole motor, a transmission coupled to the downhole motor, and a drill bit coupled to the transmission; and rotating the drill string while flowing a fluid through the drill string to the downhole motor, thereby powering the downhole motor, thereby rotating the transmission and the drill bit.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: July 12, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Joachim Siher, Guy J. Rushton
  • ADJUSTABLE DOWNHOLE MOTORS AND METHODS FOR USE
    Publication number: 20100187009
    Abstract: The present invention relates to systems and methods for controlling downhole motors and drilling systems incorporating such systems and methods. One aspect of the invention provides a downhole drilling system including: a downhole motor, a transmission coupled to the downhole motor, and a drill bit coupled to the transmission. Another aspect of the invention provides a method of drilling a borehole in a subsurface formation including the steps of: providing a drill string including a downhole motor, a transmission coupled to the downhole motor, and a drill bit coupled to the transmission; and rotating the drill string while flowing a fluid through the drill string to the downhole motor, thereby powering the downhole motor, thereby rotating the transmission and the drill bit.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 29, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joachim Siher, Guy James Rushton