Patents by Inventor Chaoguang Zhou

Chaoguang Zhou 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 building velocity models for imaging in multi-azimuth marine seismic surveys
    Patent number: 8908471
    Abstract: A programmable computer is used to perform the following. 3D seismic data sets, corresponding to each azimuth in seismic data obtained from a multi-azimuth marine seismic survey, are migrated in grids oriented with the corresponding azimuth. Acquisition geometry is stored for each trace in the seismic data sets for each azimuth. Residual analysis, based on the corresponding azimuth, is performed on each of the migrated data sets, generating residuals and reflectors for each azimuth. The residuals and reflectors generated for each azimuth are rotated and merged on a master grid. Reflection tomographic inversion is applied iteratively to the rotated and merged residuals and reflectors to update a velocity model using the acquisition geometry as based on the master grid. The earth's subsurface is imaged using the updated velocity model.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: December 9, 2014
    Assignee: PGS Geophysical AS
    Inventors: Junru Jiao, Chaoguang Zhou, Yeashung Sonny Lin, Sverre Brandsberg-Dahl
  • Method for building velocity models for imaging in multi-azimuth marine seismic surveys
    Publication number: 20110292761
    Abstract: A programmable computer is used to perform the following. 3D seismic data sets, corresponding to each azimuth in seismic data obtained from a multi-azimuth marine seismic survey, are migrated in grids oriented with the corresponding azimuth. Acquisition geometry is stored for each trace in the seismic data sets for each azimuth. Residual analysis, based on the corresponding azimuth, is performed on each of the migrated data sets, generating residuals and reflectors for each azimuth. The residuals and reflectors generated for each azimuth are rotated and merged on a master grid. Reflection tomographic inversion is applied iteratively to the rotated and merged residuals and reflectors to update a velocity model using the acquisition geometry as based on the master grid. The earth's subsurface is imaged using the updated velocity model.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 1, 2011
    Inventors: Junru Jiao, Chaoguang Zhou, Yeashung Sonny Lin, Sverre Brandsberg-Dahl