Patents by Inventor Erika Angerer

Erika Angerer 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).

  • Patent number: 7627431
    Abstract: Method of processing seismic data corresponding to acquisitions carried out in a medium exhibiting azimuthal anisotropy, characterized in that for two sets of data corresponding, for one and the same seismic variable and for one and the same ground zone, to at least two different source/azimuth receiver pair sectors, an average between the data which correspond to the azimuth considered and data which correspond, for the same variable and the same ground zone, to a perpendicular azimuth sector is determined for each of the azimuths considered, and in that an estimate of the part common to the two sets thus obtained of averaged data is determined.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: December 1, 2009
    Assignee: Compagnie Generale de Geophysique
    Inventors: Erika Angerer, Didier Lecerf, Pierre Lanfranchi
  • Publication number: 20060247860
    Abstract: Method of processing seismic data corresponding to acquisitions carried out in a medium exhibiting azimuthal anisotropy, characterized in that for two sets of data corresponding, for one and the same seismic variable and for one and the same ground zone, to at least two different source/azimuth receiver pair sectors, an average between the data which correspond to the azimuth considered and data which correspond, for the same variable and the same ground zone, to a perpendicular azimuth sector is determined for each of the azimuths considered, and in that an estimate of the part common to the two sets thus obtained of averaged data is determined.
    Type: Application
    Filed: April 23, 2004
    Publication date: November 2, 2006
    Inventors: Erika Angerer, Didier Lecerf, Pierre Lanfranchi
  • Patent number: 6862531
    Abstract: A method and apparatus for use in seismic prospecting are disclosed. The method comprises partitioning a plurality of converted split shear-wave data resulting from a common event and recorded at a plurality of azimuths and a plurality of offsets as a function of the azimuths and offsets; separating fast and slow split shear-wave wavefields in the partitioned data; deriving at least one attribute of at least one of the separated fast and slow shear-wave wavefields; and analyzing the derived attribute. The apparatus comprises, in one aspect, a program storage medium encoded with instruction that perform the method when executed by a computing device or a computer programmed to perform the device.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: March 1, 2005
    Assignee: WesternGeco, L.L.C.
    Inventors: Steve A Horne, James E Gaiser, Erika Angerer
  • Publication number: 20030167126
    Abstract: A method and apparatus for use in seismic prospecting are disclosed. The method comprises partitioning a plurality of converted split shear-wave data resulting from a common event and recorded at a plurality of azimuths and a plurality of offsets as a function of the azimuths and offsets; separating fast and slow split shear-wave wavefields in the partitioned data; deriving at least one attribute of at least one of the separated fast and slow shear-wave wavefields; and analyzing the derived attribute. The apparatus comprises, in one aspect, a program storage medium encoded with instruction that perform the method when executed by a computing device or a computer programmed to perform the device.
    Type: Application
    Filed: January 15, 2003
    Publication date: September 4, 2003
    Applicant: Westerngeco L.L.C.
    Inventors: Steve A. Horne, James E. Gaiser, Erika Angerer