Patents by Inventor Pei-Cheng Xu

Pei-Cheng 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).

  • Method for detecting, locating, and characterizing single and multiple fluid-filled fractures in fractured formations
    Publication number: 20030174581
    Abstract: A method to analyze full waveform multiple (i.e., monopoles, dipoles, quadrupoles) acoustic measurements in a fluid-filled borehole, surrounded by a system of fractures oriented parallel to the axis of the borehole. The method uses new measurement attributes, herein referred to as dual flexure waves and leaky fracture mode.
    Type: Application
    Filed: December 30, 2002
    Publication date: September 18, 2003
    Applicant: Southwest Research Institute
    Inventors: Jorge Octavio Parra, Pei-Cheng Xu
  • Method for detecting, locating, and characterizing single and multiple fluid-filled fractures in fractured formations
    Patent number: H2116
    Abstract: A method to analyze full waveform multiple (i.e., monopoles, dipoles, quadrupoles) acoustic measurements in a fluid-filled borehole, surrounded by a system of fractures oriented parallel to the axis of the borehole. The method uses new measurement attributes, herein referred to as dual flexure waves and leaky fracture mode.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: April 5, 2005
    Assignee: Southwest Research Institute
    Inventors: Jorge Octavio Parra, Pei-Cheng Xu