Patents by Inventor Weimin Yao

Weimin Yao 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).

  • Acoustic fluid analyzer
    Patent number: 7921691
    Abstract: A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal conductivity, and gas oil ratio. The compressibility of a fluid is equal to the reciprocal of the product of the sound speed squared and fluid density. The density and the sound speed can be measured acoustically. The method further includes a manner of processing data including applying the Savitzky-Golay method and utilizing a variable thresholding technique.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: April 12, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, Weimin Yao
  • ACOUSTIC FLUID ANALYZER
    Publication number: 20090229341
    Abstract: A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal conductivity, and gas oil ratio. The compressibility of a fluid is equal to the reciprocal of the product of the sound speed squared and fluid density. The density and the sound speed can be measured acoustically. The method further includes a manner of processing data including applying the Savitzky-Golay method and utilizing a variable thresholding technique.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 17, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Rocco DiFoggio, Weimin Yao
  • Acoustic fluid analyzer
    Patent number: 7523640
    Abstract: A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal conductivity, and gas oil ratio. The compressibility of a fluid is equal to the reciprocal of the product of the sound speed squared and fluid density. The density and the sound speed can be measured acoustically. The method further includes a manner of processing data including applying the Savitzky-Golay method and utilizing a variable thresholding technique.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: April 28, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, Weimin Yao
  • Acoustic fluid analyzer
    Publication number: 20070022803
    Abstract: A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal conductivity, and gas oil ratio. The compressibility of a fluid is equal to the reciprocal of the product of the sound speed squared and fluid density. The density and the sound speed can be measured acoustically. The method further includes a manner of processing data including applying the Savitzky-Golay method and utilizing a variable thresholding technique.
    Type: Application
    Filed: August 1, 2005
    Publication date: February 1, 2007
    Inventors: Rocco DiFoggio, Weimin Yao