Patents by Inventor Stefan S. Natu

Stefan S. Natu 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).

  • Publication number: 20230258487
    Abstract: Systems for examining a material comprising: an electromagnetic radiation source; a dielectric contrast analysis structure comprising: a bulk dielectric substance; a plurality of receptacles in the bulk dielectric substance for receiving the material; and an electromagnetic radiation detector, wherein the dielectric contrast analysis structure is between the electromagnetic radiation source and the electromagnetic radiation detector. Wherein the plurality of receptacles are substantially parallel with one another and are disposed in a dielectric contrast analysis structure that is disposed in a pipe. Wherein the dielectric contrast analysis structure comprises: a bulk dielectric substance having a first end, a second end, and the plurality of receptacles disposed within the bulk dielectric substance, wherein a flow path of the material through the receptacles is from the first end of the bulk dielectric substance to the second end of the bulk dielectric substance.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 17, 2023
    Applicant: ExxonMobil Technology and Engineering Company
    Inventors: Lang FENG, Stefan S. NATU, John J. VALENZA, II
  • Patent number: 11668593
    Abstract: Methods and apparatus for examining a material are provided. One example method generally includes disposing the material in a dielectric contrast analysis structure, wherein the dielectric contrast analysis structure comprises a bulk dielectric substance and a plurality of receptacles in the bulk dielectric substance, wherein the material is disposed in one or more of the plurality of receptacles; exposing the dielectric contrast analysis structure to incident electromagnetic radiation; detecting resultant radiation from the exposed dielectric contrast analysis structure; and analyzing the detected resultant radiation to estimate at least one of a phase fraction and a phase distribution in the material.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: June 6, 2023
    Assignee: ExxonMobil Technology and Engineering Company
    Inventors: Lang Feng, Stefan S. Natu, John J. Valenza, II
  • Publication number: 20190265376
    Abstract: The present disclosure generally relates to a computer-implemented method for determining intrinsic attenuation in a region of a subsurface. The method generally includes obtaining seismic data around the region of the subsurface; processing the seismic data to obtain a reflectivity spectrum in the region of the subsurface; fitting the reflectivity spectrum to analytic formulas as a function of frequency; and determining the intrinsic attenuation in the region of the subsurface based on the fitting. Other aspects of the present disclosure relate to a computer-implemented method for determining the thickness of a thin subsurface bed at a horizon of interest.
    Type: Application
    Filed: January 18, 2019
    Publication date: August 29, 2019
    Inventors: Stefan S. Natu, Mehmet D. Ertas, Harry W. Deckman
  • Publication number: 20190242733
    Abstract: Methods and apparatus for examining a material are provided. One example method generally includes disposing the material in a dielectric contrast analysis structure, wherein the dielectric contrast analysis structure comprises a bulk dielectric substance and a plurality of receptacles in the bulk dielectric substance, wherein the material is disposed in one or more of the plurality of receptacles; exposing the dielectric contrast analysis structure to incident electromagnetic radiation; detecting resultant radiation from the exposed dielectric contrast analysis structure; and analyzing the detected resultant radiation to estimate at least one of a phase fraction and a phase distribution in the material.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 8, 2019
    Inventors: Lang Feng, Stefan S. Natu, John J. Valenza, II