Patents by Inventor Nico Foekema

Nico Foekema 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).

  • Magnetometers for measurement-while-drilling applications
    Patent number: 7252144
    Abstract: A nuclear sensor on a bottomhole assembly (BHA) makes measurements of a property of an earth formation during continued rotation of the BHA. Magnetometers that are susceptible to bias error are deployed on the BHA to make measurements of the magnetic toolface angle. A processor separates the sensor measurements into azimuthal sectors while compensating for inherent time delays in the electronics, non-uniform rotation, and bias.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: August 7, 2007
    Assignee: Baker Hughes Incorporated
    Inventors: Robert A. Estes, Roger Cruz, Brent D. Hope, Nico Foekema
  • Magnetometers for measurement-while-drilling applications
    Publication number: 20050199425
    Abstract: A nuclear sensor on a bottomhole assembly (BHA) makes measurements of a property of an earth formation during continued rotation of the BHA. Magnetometers that are susceptible to bias error are deployed on the BHA to make measurements of the magnetic toolface angle. A processor separates the sensor measurements into azimuthal sectors while compensating for inherent time delays in the electronics, non-uniform rotation, and bias.
    Type: Application
    Filed: November 29, 2004
    Publication date: September 15, 2005
    Inventors: Robert Estes, Roger Cruz, Brent Hope, Nico Foekema