Patents by Inventor Chuntao Liang

Chuntao Liang 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 imaging the earths subsurface using passive seismic interferometry and adaptive velocity filtering
    Patent number: 8218394
    Abstract: A method of imaging the Earth's subsurface using passive seismic interferometry tomography includes detecting seismic signals from within the Earth's subsurface over a time period using an array of seismic sensors, the seismic signals being generated by seismic events within the Earth's subsurface. The method further includes adaptively velocity filtering the detected signals. The method further includes cross-correlating the velocity filtered seismic signals to obtain a reflectivity series at a position of each of the seismic sensors.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: July 10, 2012
    Assignee: Microseismic, Inc.
    Inventors: Chuntao Liang, Michael P. Thornton, Peter M. Duncan
  • Method for passive seismic emission tomography using adaptive velocity filter
    Patent number: 8064288
    Abstract: A method for seismic event mapping includes adaptively velocity filtering seismic signals recorded at selected positions. The velocity filtered signals are transformed into a domain of possible spatial positions of a source of seismic events. An origin in spatial position and time of at least one seismic event is determined from space and time distribution of at least one attribute of the transformed seismic data.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: November 22, 2011
    Assignee: Microseismic, Inc.
    Inventors: Chuntao Liang, Michael P. Thornton, Peter Morton
  • METHOD FOR IMAGING THE EARTHS SUBSURFACE USING PASSIVE SEISMIC INTERFEROMETRY AND ADAPTIVE VELOCITY FILTERING
    Publication number: 20100315902
    Abstract: A method of imaging the Earth's subsurface using passive seismic interferometry tomography includes detecting seismic signals from within the Earth's subsurface over a time period using an array of seismic sensors, the seismic signals being generated by seismic events within the Earth's subsurface. The method further includes adaptively velocity filtering the detected signals. The method further includes cross-correlating the velocity filtered seismic signals to obtain a reflectivity series at a position of each of the seismic sensors.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 16, 2010
    Inventors: Chuntao Liang, Michael P. Thornton, Peter M. Duncan
  • METHOD FOR PASSIVE SEISMIC EMISSION TOMOGRAPHY USING ADAPTIVE VELOCITY FILTER
    Publication number: 20100315903
    Abstract: A method for seismic event mapping includes adaptively velocity filtering seismic signals recorded at selected positions. The velocity filtered signals are transformed into a domain of possible spatial positions of a source of seismic events. An origin in spatial position and time of at least one seismic event is determined from space and time distribution of at least one attribute of the transformed seismic data.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 16, 2010
    Inventors: Chuntao Liang, Michael P. Thornton, Peter Morton