Patents by Inventor Hassan Alqahtani

Hassan Alqahtani 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).

  • Fabrication of in situ HR-LCTEM nanofluidic cell for nanobubble interactions during EOR processes in carbonate rocks
    Patent number: 11961702
    Abstract: Systems and methods for preparing a nanofluidic LCTEM cell are provided. An exemplary method includes coating a photoresist layer onto a top surface of a silicon nitride substrate; etching channels into the photoresist layer; depositing calcite into the etched channels; removing the photoresist; placing the cell on a holder; connecting a first end of an inlet line to the cell; connecting a second end of the inlet line to an ultrasound transducer configured to generate nanobubbles; and connecting an outlet line to the cell.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: April 16, 2024
    Assignee: Saudi Arabian Oil Company
    Inventors: Hassan Alqahtani, Dong Kyu Cha, Mohammed Al Otaibi
  • Using Water Ponds for Capturing Dioxide and Growing Algae
    Publication number: 20230321601
    Abstract: Methods and systems for sequestering carbon dioxide and growing algae can include: producing fluids from a subsurface formation; separating the fluids into hydrocarbons and produced water; transferring the produced water to a treatment pond; transferring the hydrocarbons to a gas fractionation plant; separating the hydrocarbons resulting in a carbon dioxide side stream; and discharging the carbon dioxide side stream into the treatment pond.
    Type: Application
    Filed: March 27, 2023
    Publication date: October 12, 2023
    Inventors: Fahd Ibrahim AlGhunaimi, Hassan Alqahtani, Mustafa Alkhowaildi, Ameerah Bokhari
  • FABRICATION OF IN SITU HR-LCTEM NANOFLUIDIC CELL FOR NANOBUBBLE INTERACTIONS DURING EOR PROCESSES IN CARBONATE ROCKS
    Publication number: 20230187170
    Abstract: Systems and methods for preparing a nanofluidic LCTEM cell are provided. An exemplary method includes coating a photoresist layer onto a top surface of a silicon nitride substrate; etching channels into the photoresist layer; depositing calcite into the etched channels; removing the photoresist; placing the cell on a holder; connecting a first end of an inlet line to the cell; connecting a second end of the inlet line to an ultrasound transducer configured to generate nanobubbles; and connecting an outlet line to the cell.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 15, 2023
    Inventors: Hassan Alqahtani, Dong Kyu Cha, Mohammed Al Otaibi