Patents by Inventor Ruth Ellen HAHN

Ruth Ellen HAHN 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).

  • Compositions and methods for pressure protection
    Patent number: 11802236
    Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: October 31, 2023
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Ruth Ellen Hahn, Taimur Malik, Samiha Said Elsayed Morsy, Nabijan Nizamidin, Mohsen S. Tagavifar
  • COMPOSITIONS AND METHODS FOR PRESSURE PROTECTION
    Publication number: 20230084576
    Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.
    Type: Application
    Filed: July 11, 2022
    Publication date: March 16, 2023
    Inventors: Ruth Ellen HAHN, Taimur MALIK, Samiha Said Elsayed MORSY, Nabijan NIZAMIDIN, Mohsen S. TAGAVIFAR
  • AQUEOUS FOAM COMPOSITIONS AND METHODS OF MAKING AND USING THEREOF
    Publication number: 20220290031
    Abstract: Described herein are aqueous based foams for use in drilling operations. The foams can be used in below bubble point drilling operations to control the migration of reservoir gases (e.g., hydrogen sulfide) to the surface.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 15, 2022
    Inventors: Ruth Ellen HAHN, Varadarajan DWARAKANATH, Kerry SPILKER, Gregory A. WINSLOW, Sophany THACH, Gayani W. PINNAWALA, Christopher GRIFFITH, Harold Charles LINNEMEYER, Robert Neil TROTTER
  • Methods for pressure protection using a foamed pressure protection composition
    Patent number: 11384284
    Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting a foamed pressure protection composition into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: July 12, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Ruth Ellen Hahn, Taimur Malik, Samiha Said Elsayed Morsy, Nabijan Nizamidin, Mohsen S. Tagavifar
  • Compositions and Methods for Pressure Protection
    Publication number: 20210002544
    Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 7, 2021
    Inventors: Ruth Ellen HAHN, Taimur MALIK, Samiha Said Elsayed MORSY, Nabijan NIZAMIDIN, Mohsen S. TAGAVIFAR