Patents by Inventor John Frier Willis

John Frier Willis 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).

  • Method for sub-salt migration velocity analysis
    Patent number: 7609585
    Abstract: A method for interpreting seismic data below a salt layer includes depth migrating the seismic data to a bottom of the salt layer. The migrating including generating an initial model of velocities below the salt layer. The initial model is scaled by a plurality of scale factors at at least one image position. At least one of the plurality of scale factors for which a depth migrated image below the salt layer is optimum is selected as the scale factor.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 27, 2009
    Assignee: PGS Geophysical AS
    Inventors: Junru Jiao, David Richard Lowrey, John Frier Willis, Daniel Solano
  • Method for sub-salt migration velocity analysis
    Publication number: 20070263487
    Abstract: A method for interpreting seismic data below a salt layer includes depth migrating the seismic data to a bottom of the salt layer. The migrating including generating an initial model of velocities below the salt layer. The initial model is scaled by a plurality of scale factors at at least one image position. At least one of the plurality of scale factors for which a depth migrated image below the salt layer is optimum is selected as the scale factor.
    Type: Application
    Filed: July 28, 2006
    Publication date: November 15, 2007
    Inventors: Junru Jiao, David Richard Lowrey, John Frier Willis, Daniel Solano