Patents Assigned to Ms. Zhao Zhang
  • Publication number: 20120092961
    Abstract: The various embodiments of the present invention provide a method for removing a Scholte waves and similar ground roll type waves from a seismic sea bottom data in a shallow water. The method comprises acquiring seismic sea bottom data in a shallow waters, applying a time-frequency-wave number (t-f-k) transform on the acquired seismic sea bottom data, identifying a time-frequency relationship of a surface wave based on a specific wave number, identifying a frequency-wave number relationship of a surface wave based on a specific time, designing a time varying frequency-wave number filter in the time-frequency-wave number domain to separate the surface wave, applying a time varying frequency-wave number filtering process to remove an undesired energy and inversing a filtered record by applying an inverse S-Transform operation and an inverse Fourier Transform operation.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 19, 2012
    Applicants: The Petroleum Institute, Texas A&M Research Foundation, Ms. Zhao Zhang, Dr. Karl-Andreas Berteussen, Dr. Yuefeng Sun
    Inventors: Karl-Andreas Berteussen, Yuefeng Sun