Patents by Inventor Olaf Hellwig

Olaf Hellwig 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).

  • Imaging of formation structure ahead of the drill-bit
    Patent number: 8811114
    Abstract: The present disclosure is related to apparatuses and methods for downhole acoustic logging. The tool may be used for generating a guided borehole wave that propagates into the formation as a body wave, reflects from an interface, and is converted back into a guided borehole wave. Guided borehole waves resulting from reflection of the body wave are used to image a reflector. Methods may include processing of acoustic logging signals including: wavefield separation, auto-correlation of wavefield components, filtering using a dip filter, and estimating a distance to the reflective interface.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: August 19, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Theodorus W. Geerits, Thomas Bohlen, Olaf Hellwig
  • Imaging of Formation Structure Ahead of the Drill-Bit
    Publication number: 20120069713
    Abstract: The present disclosure is related to apparatuses and methods for downhole acoustic logging. The tool may be used for generating a guided borehole wave that propagates into the formation as a body wave, reflects from an interface, and is converted back into a a guided borehole wave. Guided borehole waves resulting from reflection of the body wave are used to image a reflector. Methods may include processing of acoustic logging signals including: wavefield separation, auto-correlation of wavefield components, filtering using a dip filter, and estimating a distance to the reflective interface.
    Type: Application
    Filed: August 16, 2011
    Publication date: March 22, 2012
    Applicant: Baker Hughes Incorporated
    Inventors: Theodorus W. Geerits, Thomas Bohlen, Olaf Hellwig
  • Imaging of formation structure ahead of the drill-bit
    Patent number: 8055448
    Abstract: A downhole acoustic logging tool is used for generating a guided borehole wave that propagates into the formation as a body wave, reflects from an interface and is converted back into a guided borehole wave. Guided borehole waves resulting from reflection of the body wave are used to image a reflector.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: November 8, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Holger Mathiszik, Tim W. Geerits, Thomas Bohlen, Denise De Nil, Daniel Köhn, Olaf Hellwig, Stefan Jetschny
  • Imaging of Formation Structure Ahead of the Drill-Bit
    Publication number: 20080312839
    Abstract: A downhole acoustic logging tool is used for generating a guided borehole wave that propagates into the formation as a body wave, reflects from an interface and is converted back into a guided borehole wave. Guided borehole waves resulting from reflection of the body wave are used to image a reflector.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 18, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Holger Mathiszik, Tim W. Geerits, Thomas Bohlen, Denise De Nil, Daniel Kohn, Olaf Hellwig, Stefan Jetschny