Patents by Inventor Carolyn A. Koh

Carolyn A. Koh 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).

  • Patent number: 10578568
    Abstract: Methods to identify and quantify the emulsion properties in oil and gas producing wells at downhole condition or pipelines using NMR and to provide potential treatment options. The longitudinal (T1), transverse (T2) relaxation times and diffusion coefficient of a fluid are changed by the presence of a second dispersed fluid phase in the form of bubbles or droplets. Properties may be determined by comparing the measured T1 and T2 spectra and diffusion coefficient at downhole conditions with the bulk responses of the constituent fluids.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 3, 2020
    Assignee: Colorado School of Mines
    Inventors: Milad Saidian, Ahmad A. Abdul Majid, Manika Prasad, Carolyn A. Koh
  • Publication number: 20160320323
    Abstract: The present invention is directed to methods to identify and quantify the emulsion properties in oil and gas producing wells at downhole condition or pipelines using NMR and to provide potential treatment options. The longitudinal (T1), transverse (T2) relaxation times and diffusion coefficient of a fluid are changed by the presence of a second dispersed fluid phase in the form of bubbles or droplets. Properties may be determined by comparing the measured T1 and T2 spectra and diffusion coefficient at downhole conditions with the bulk responses of the constituent fluids.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 3, 2016
    Applicant: Colorado School of Mines
    Inventors: Milad Saidian, Ahmad A. Abdul Majid, Manika Prasad, Carolyn A. Koh