Patents by Inventor Halvor Groenaas

Halvor Groenaas 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).

  • System and Method for Seismic Streamer Control
    Publication number: 20170139069
    Abstract: A control system for use in a marine seismic survey is provided. The system may include one or more processors configured to receive a desired position for one or more seismic streamers during the marine seismic survey. The one or more processors may be further configured to determine a current position for the one or more seismic streamers and to adjust a position of a steering device on each streamer, based upon, at least in part, a comparison between the current position of the one or more seismic streamers and the desired position of the one or more seismic streamers.
    Type: Application
    Filed: January 31, 2017
    Publication date: May 18, 2017
    Inventors: NICOLAS BARRAL, HALVOR GRØNAAS, ANTONIN BERTIN
  • Determining the structure of a towed seismic spread element
    Patent number: 9207347
    Abstract: A technique includes obtaining a plurality of sets of measurements of distances between nodes located on a seismic spread element while the element is in tow. Each set is acquired in response to the operation of a different set of sources. The technique includes determining a three-dimensional structure of the seismic spread element while in tow based at least in part on the sets of measurements.
    Type: Grant
    Filed: July 5, 2008
    Date of Patent: December 8, 2015
    Assignee: WesternGeco L.L.C.
    Inventors: Svein Arne Frivik, Halvor Groenaas, Kenneth E. Welker
  • Determining positioning of survey equipment using a model
    Patent number: 8094513
    Abstract: To performing positioning of survey equipment, measurements of acoustic signals reflected from at least one boundary of a marine environment are received. The reflected acoustic signals are reflected from the at least one boundary in response to acoustic signaling originated by an acoustic source. A positioning model is updated based on the measurements of the acoustic signals, wherein the positioning model contains information relating to positions of components of a positioning system that includes the acoustic source and acoustic receiver.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: January 10, 2012
    Assignee: WesternGeco L.L.C.
    Inventors: Henk Keers, Suriyakan Vongtragool, Kenneth E. Welker, Svein Arne Frivik, Halvor Groenaas
  • DETERMINING THE STRUCTURE OF A TOWED SEISMIC SPREAD ELEMENT
    Publication number: 20100002538
    Abstract: A technique includes obtaining a plurality of sets of measurements of distances between nodes located on a seismic spread element while the element is in tow. Each set is acquired in response to the operation of a different set of sources. The technique includes determining a three-dimensional structure of the seismic spread element while in tow based at least in part on the sets of measurements.
    Type: Application
    Filed: July 5, 2008
    Publication date: January 7, 2010
    Inventors: SVEIN ARNE FRIVIK, Halvor Groenaas, Kenneth E. Welker
  • DETERMINING POSITIONING OF SURVEY EQUIPMENT USING A MODEL
    Publication number: 20090296519
    Abstract: To performing positioning of survey equipment, measurements of acoustic signals reflected from at least one boundary of a marine environment are received. The reflected acoustic signals are reflected from the at least one boundary in response to acoustic signaling originated by an acoustic source.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Inventors: HENK KEERS, Suriyakan Vongtragool, Kenneth E. Welker, Svein Arne Frivik, Halvor Groenaas