Patents by Inventor Youmei Xu

Youmei Xu 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: 7414919
    Abstract: A method for improving the seismic resolution in the field of petroleum exploration and development, using the steps of: (1) ensuring the depth and the velocity of the low-velocity layer and the high-velocity layer and the characteristic of the frequency spectrum of the seismic wave at the near-surface using the borehole seismic survey; (2) separating the ghost wave from the seismic record in the high-velocity layer using the processing method of the vertical seismic profiling, and improving the SNR of the seismic record of the direct wave at the high-velocity layer using the uphole stacking of the vertical seismic profiling; (3) evaluating the de-convolution operator of the near-surface by the convolution math-physics equation; (4) evaluating the seismic record with high resolution by the de-convolution math-physics equation; (5) providing the band-pass filtering and geologic interpretation to the seismic record with high resolution.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: August 19, 2008
    Assignee: Petrochina Co., Ltd.
    Inventors: Zishun Li, Youmei Xu
  • Publication number: 20050286344
    Abstract: This invention relates to a method for improving the seismic resolution in the field of petroleum exploration and development. The major problems with regard to the present low vertical seismic resolution, and the thin layer, which is recognized by the seismic data administered with difficult, may be resolved according to the present invention.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 29, 2005
    Inventors: Zishun Li, Youmei Xu