Patents by Inventor Mark Daniel Doherty

Mark Daniel Doherty 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).

  • Patent number: 10030483
    Abstract: An efficient and cost-effective process of carbon dioxide recycling in enhanced oil recovery wells or in fracturing wells is provided. The process comprises recovering a hydrocarbon enriched stream of condensed carbon dioxide from and enhanced oil recovery (EOR) well or a fracturing well; adding to said stream one or more thickeners; and directing the thickened stream to the EOR well or fracturing well for recycled usage in EOR.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: July 24, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Dan Hancu, Michael Joseph O'Brien, Robert James Perry, Stanlee Teresa Buddle, Mark Daniel Doherty
  • Patent number: 9957438
    Abstract: A compound represented by the following formula is provided: Also provided is a solution including a compound disclosed herein, a volume of dense carbon dioxide (CO2), and a co-solvent, where the solution has an increased viscosity greater than the viscosity of dense CO2. Methods of increasing the viscosity of dense CO2 and natural gas liquids (NGLs) by, for example, dissolving a compound disclosed herein to form a solution, are also provided.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 1, 2018
    Assignee: General Electric Company
    Inventors: Mark Daniel Doherty, Michael Joseph O'Brien, Jason Lee, Robert James Perry, Robert Enick
  • Publication number: 20170210975
    Abstract: A compound represented by the following formula is provided: Also provided is a solution including a compound disclosed herein, a volume of dense carbon dioxide (CO2), and a co-solvent, where the solution has an increased viscosity greater than the viscosity of dense CO2. Methods of increasing the viscosity of dense CO2 and natural gas liquids (NGLs) by, for example, dissolving a compound disclosed herein to form a solution, are also provided.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 27, 2017
    Applicants: GENERAL ELECTRIC COMPANY, University of Pittsburgh-Of The Commonwealth System of Higher Education
    Inventors: Mark Daniel DOHERTY, Michael Joseph O'BRIEN, Jason LEE, Robert James PERRY, Robert ENICK
  • Publication number: 20170114269
    Abstract: Provided herein are methods for efficient and cost effective carbon dioxide recycling in enhanced oil recovery wells or in fracturing wells. Also provided are functionalized polymers which can be used as thickeners in the methods for efficient and cost effective carbon dioxide recycling in enhanced oil recovery wells or in fracturing wells.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 27, 2017
    Inventors: Dan Hancu, Michael Joseph O'Brien, Robert James Perry, Stanlee Teresa Buddle, Mark Daniel Doherty