Patents by Inventor Michael L. Szalai

Michael L. Szalai 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).

  • Weak gel system for chemical enhanced oil recovery
    Patent number: 10655055
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: May 19, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang
  • WEAK GEL SYSTEM FOR CHEMICAL ENHANCED OIL RECOVERY
    Publication number: 20190309215
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang
  • Weak gel system for chemical enhanced oil recovery
    Patent number: 10370585
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: August 6, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang
  • WEAK GEL SYSTEM FOR CHEMICAL ENHANCED OIL RECOVERY
    Publication number: 20170362494
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Application
    Filed: November 23, 2016
    Publication date: December 21, 2017
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang
  • WEAK GEL SYSTEM FOR CHEMICAL ENHANCED OIL RECOVERY
    Publication number: 20170145292
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Application
    Filed: November 23, 2016
    Publication date: May 25, 2017
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang