Patents by Inventor Dennis G. Bones

Dennis G. Bones 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 signal-to-noise ratio enhancement of seismic data using frequency dependent true relative amplitude noise attenuation
    Patent number: 6950371
    Abstract: A method for enhancing signal-to-noise (S/N) ratio of seismic data is presented. An ensemble of input traces is decomposed into a plurality of frequency bands of traces. Trace and signal power and then a maximum allowable signal-to-noise ratio are estimated for each frequency band. Weights are calculated which are functions of the inverse noise power or rms. The amplitudes in each of the traces are reformed using a fitting function which utilizes the estimated weights to create true relative amplitude signal enhanced traces. The weighting function has data adaptive parameters which can be changed to accommodate noise characteristics such coherency, incoherency, Gaussian and non-Gaussian distributions, etc. The method may be applied across many different coordinate systems. The method may be applied iteratively to seismic data to shape the noise distribution of the seismic data.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: September 27, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventors: E. Fredrick Herkenhoff, Dennis G. Bones, Kendall Bong Hu Louie
  • Method for signal-to-noise ratio enhancement of seismic data using frequency dependent true relative amplitude noise attenuation
    Publication number: 20040233782
    Abstract: A method for enhancing signal-to-noise (S/N) ratio of seismic data is presented. An ensemble of input traces is decomposed into a plurality of frequency bands of traces. Trace and signal power and then a maximum allowable signal-to-noise ratio are estimated for each frequency band. Weights are calculated which are functions of the inverse noise power or rms. The amplitudes in each of the traces are reformed using a fitting function which utilizes the estimated weights to create true relative amplitude signal enhanced traces. The weighting function has data adaptive parameters which can be changed to accommodate noise characteristics such coherency, incoherency, Gaussian and non-Gaussian distributions, etc. The method may be applied across many different coordinate systems. The method may be applied iteratively to seismic data to shape the noise distribution of the seismic data.
    Type: Application
    Filed: May 20, 2003
    Publication date: November 25, 2004
    Applicant: Chevron U.S.A. Inc.
    Inventors: E. Fredrick Herkenhoff, Dennis G. Bones, Kendall Bong Hu Louie