Patents by Inventor Lilong Li

Lilong Li 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).

  • NMR Flow Metering Using Velocity Selection and Remote Detection
    Publication number: 20120092007
    Abstract: A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. In the first method, nuclei in the fluid are polarized over two distances and a measured magnetization gives the relative fraction of two components of the fluid for a selected velocity. In the second method, nuclei in the fluid are polarized over a specified distance and measurements of the decay of spin echo signals is used to give the relative fraction of two components of the fluid for the selected velocity.
    Type: Application
    Filed: December 17, 2010
    Publication date: April 19, 2012
    Applicant: Baker Hughes Incorporated
    Inventors: Lilong Li, Songhua Chen, Carl M. Edwards
  • Method and Apparatus to Incorporate Internal Gradient and Restricted Diffusion in NMR Inversion
    Publication number: 20110137567
    Abstract: Pulse sequences are applied to a fluid in an earth formation with an external static magnetic field and NMR spin echo signals are obtained. The received NMR signals are affected by internal field gradients due to a contrast in magnetic susceptibility between the grains of the formation matrix and the fluid in the pore space. Processing of the data gives the relaxation time and diffusivity of the fluid.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: Baker Hughes Incorporated
    Inventors: Lilong Li, Songhua Chen