Patents by Inventor NIGEL HALE

NIGEL HALE 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).

  • STEERABLE DRILLING SYSTEM
    Publication number: 20060249287
    Abstract: A steerable drilling system comprises a bias unit 14 operable by means of a control valve arrangement 22, the control valve arrangement 22 comprising a rotary valve 24 having a control shaft 28 the angular position of which is controlled by a motor 30.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 9, 2006
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: GEOFFREY DOWNTON, NIGEL HALE