Patents by Inventor Amy L. Chen

Amy L. Chen 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).

  • Composition and method for using waxy oil-external emulsions to modify reservoir permeability profiles
    Patent number: 8822387
    Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 2, 2014
    Assignee: ExxonMobil Upstream Research Company
    Inventors: James R. Bragg, Joseph P. Lederhos, Sergio A. Leonardi, Scott E. Hommema, Amy L. Chen, Shan H. Yang
  • Composition and Method For Using Waxy Oil-External Emulsions To Modify Reservoir Permeability Profiles
    Publication number: 20120149605
    Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 14, 2012
    Inventors: James R. Bragg, Joseph P. Lederhos, Sergio A. Leonardi, Scott E. Hommema, Amy L. Chen, Shan H. Yang
  • Composition and method for using waxy oil-external emulsions to modify reservoir permeability profiles
    Patent number: 8146654
    Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: April 3, 2012
    Assignee: ExxonMobil Upstream Research Company
    Inventors: James R. Bragg, Joseph P. Lederhos, Sergio A. Leonardi, Scott E. Hommema, Amy L. Chen, Shan H. Yang
  • Composition and Method For Using Waxy Oil-External Emulsions To Modify Reservoir Permeability Profiles
    Publication number: 20090301714
    Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.
    Type: Application
    Filed: June 18, 2007
    Publication date: December 10, 2009
    Inventors: James R. Bragg, Joseph P. Lederhos, Sergio A. Leonardi, Scott E. Hommema, Amy L. Chen, Shan H. Yang