Patents by Inventor Ammar EL-HUSSEINY

Ammar EL-HUSSEINY 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: 20250180769
    Abstract: A method of subsurface formation characterization is described. The method includes obtaining spectral induced polarization (SIP) measurements of a volume of a subsurface formation at a plurality of frequencies to determine a frequency-dependent complex (FDC) impedance value of a matrix material in the volume of the subsurface formation. The method further includes determining whether the volume is a low resistivity pay (LRP) zone with a formation resistivity index?2, by analyzing the FDC impedance value of the matrix material, and identifying the volume of the subsurface formation as the LRP zone when the FDC impedance exhibits a dispersion at increasing frequencies. The FDC impedance value is substantially constant before the dispersion and increases by at least one order of magnitude over one order of magnitude of the increasing frequencies in the dispersion.
    Type: Application
    Filed: December 4, 2023
    Publication date: June 5, 2025
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Sara KELLAL, Panagiotis KIRMIZAKIS, Ammar EL-HUSSEINY, Panteleimon SOUPIOS, Mohamed MAHMOUD
  • Publication number: 20240192155
    Abstract: A method to measure acid diversion efficiency in rock samples. The method includes measuring a first porosity and a permeability of the rock samples. The method includes flooding a core region of the rock sample with a hydrochloric acid (HCl) system to create a wormhole, wherein during the flooding the HCl system penetrates from a first end of the rock sample to a second end of the rock sample to form the wormhole. The method includes measuring a second porosity, a pore size distribution, and a diffusion tortuosity of the rock samples with NMR. The method includes establishing a diversion index (DI) based off a ratio between the diffusion tortuosity in a first direction and the diffusion tortuosity in a second direction. The method includes determining the acid diversion efficiency based off the diversion index.
    Type: Application
    Filed: December 8, 2022
    Publication date: June 13, 2024
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mahmoud ELSAYED, Mohamed MAHMOUD, Murtada Saleh ALJAWAD, Ammar EL-HUSSEINY, Ahmed BINGHANIM
  • Publication number: 20220003695
    Abstract: A method for predicting formation permeability by measuring diffusional tortuosity in several directions by pulse gradient NMR. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, determining diffusional tortuosity from the restricted diffusion data, supplementing the NMR results with resistivity and sonic logging data, measuring anisotropic tortuosity and porosity by resistivity and sonic data and combining all components in a single fitting model. The 11-coefficient model is trained to recognize the true values of permeability by comparing the real oil permeabilities measured in a library of oil-carrying rock cores with the NMR, resistivity and sonic correlates. The fitting coefficients are extracted by minimizing the discrepancy between the laboratory measured permeabilities and the predicted values combining all rapid logging information components with the agreement-maximizing weights.
    Type: Application
    Filed: August 16, 2021
    Publication date: January 6, 2022
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mahmoud ELSAYED, Ammar EL-HUSSEINY, Mohamed MAHMOUD, Karem AL-GARADI
  • Publication number: 20220003696
    Abstract: A method for predicting formation permeability by measuring diffusional tortuosity in several directions by pulse gradient NMR. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, determining diffusional tortuosity from the restricted diffusion data, supplementing the NMR results with resistivity and sonic logging data, measuring anisotropic tortuosity and porosity by resistivity and sonic data and combining all components in a single fitting model. The 11-coefficient model is trained to recognize the true values of permeability by comparing the real oil permeabilities measured in a library of oil-carrying rock cores with the NMR, resistivity and sonic correlates. The fitting coefficients are extracted by minimizing the discrepancy between the laboratory measured permeabilities and the predicted values combining all rapid logging information components with the agreement-maximizing weights.
    Type: Application
    Filed: August 16, 2021
    Publication date: January 6, 2022
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mahmoud ELSAYED, Ammar EL-HUSSEINY, Mohamed MAHMOUD, Karem AL-GARADI
  • Publication number: 20210372955
    Abstract: A method for predicting formation permeability by measuring diffusional tortuosity in several directions by pulse gradient NMR. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, determining diffusional tortuosity from the restricted diffusion data, supplementing the NMR results with resistivity and sonic logging data, measuring anisotropic tortuosity and porosity by resistivity and sonic data and combining all components in a single fitting model. The 11-coefficient model is trained to recognize the true values of permeability by comparing the real oil permeabilities measured in a library of oil-carrying rock cores with the NMR, resistivity and sonic correlates. The fitting coefficients are extracted by minimizing the discrepancy between the laboratory measured permeabilities and the predicted values combining all rapid logging information components with the agreement-maximizing weights.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mahmoud ELSAYED, Ammar EL-HUSSEINY, Mohamed MAHMOUD, Karem AL-GARADI
  • Publication number: 20210372956
    Abstract: A method for predicting formation permeability by measuring diffusional tortuosity in several directions by pulse gradient NMR. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, determining diffusional tortuosity from the restricted diffusion data, supplementing the NMR results with resistivity and sonic logging data, measuring anisotropic tortuosity and porosity by resistivity and sonic data and combining all components in a single fitting model. The 11-coefficient model is trained to recognize the true values of permeability by comparing the real oil permeabilities measured in a library of oil-carrying rock cores with the NMR, resistivity and sonic correlates. The fitting coefficients are extracted by minimizing the discrepancy between the laboratory measured permeabilities and the predicted values combining all rapid logging information components with the agreement-maximizing weights.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mahmoud ELSAYED, Ammar EL-HUSSEINY, Mohamed MAHMOUD, Karem AL-GARADI
  • Publication number: 20210372954
    Abstract: A method for predicting formation permeability by measuring diffusional tortuosity in several directions by pulse gradient NMR. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, determining diffusional tortuosity from the restricted diffusion data, supplementing the NMR results with resistivity and sonic logging data, measuring anisotropic tortuosity and porosity by resistivity and sonic data and combining all components in a single fitting model. The 11-coefficient model is trained to recognize the true values of permeability by comparing the real oil permeabilities measured in a library of oil-carrying rock cores with the NMR, resistivity and sonic correlates. The fitting coefficients are extracted by minimizing the discrepancy between the laboratory measured permeabilities and the predicted values combining all rapid logging information components with the agreement-maximizing weights.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mahmoud ELSAYED, Ammar EL-HUSSEINY, Mohamed MAHMOUD, Karem AL-GARADI
  • Publication number: 20210285902
    Abstract: A method for predicting formation permeability by measuring diffusional tortuosity in several directions by pulse gradient NMR. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, determining diffusional tortuosity from the restricted diffusion data, supplementing the NMR results with resistivity and sonic logging data, measuring anisotropic tortuosity and porosity by resistivity and sonic data and combining all components in a single fitting model. The 11-coefficient model is trained to recognize the true values of permeability by comparing the real oil permeabilities measured in a library of oil-carrying rock cores with the NMR, resistivity and sonic correlates. The fitting coefficients are extracted by minimizing the discrepancy between the laboratory measured permeabilities and the predicted values combining all rapid logging information components with the agreement-maximizing weights.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mahmoud ELSAYED, Ammar EL-HUSSEINY, Mohamed MAHMOUD, Karem AL-GARADI
  • Publication number: 20210238998
    Abstract: A method for assessing an optimal acid injection rate in the process of hydrocarbon formation stimulation. The method comprises evaluating an anisotropic diffusion coefficient by pulsed gradient NMR, introduction of a semi-empirical correction based on comparison of the downhole conditions with the library of laboratory experiments where such corrections were measured, extrapolation of the library data to the real downhole conditions. The improved values of the diffusion coefficients are applied in determining wormhole regime conditions that are optimal in terms of acid consumption per a unit of stimulated yield of the hydrocarbon.
    Type: Application
    Filed: February 3, 2020
    Publication date: August 5, 2021
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mahmoud ELSAYED, Mohamed MAHMOUD, Ammar EL-HUSSEINY, Muhammad Shahzad KAMAL, Karem AL-GARADI