Patents by Inventor Colin Malcolm MacKenzie

Colin Malcolm MacKenzie 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).

  • Multi-circulation heat recovery steam generator for enhanced oil recovery/steam assisted gravity drainage
    Patent number: 11674685
    Abstract: A multi-circulation heat recovery steam generator (HRSG) for steam assisted gravity drainage (SAGD)/Enhanced Oil Recovery (EOR) processes comprises a steam drum internally partitioned to provide a clean side and a dirty side. The clean side downcomer pipe supplies water to one or more generating banks as part of a clean circuit located in a high heat flux zone of the boiler. Boiler water is fed from the clean side of the drum to the dirty side of the drum via natural head differential. Water is then fed through a corresponding downcomer to a dirty generating bank, which is located in a low heat flux zone of the boiler.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: June 13, 2023
    Assignee: Babcock & Wilcox Canada Corp.
    Inventors: Gary R Barker, Dong Chen, Jonathan D Fleming, Colin Malcolm MacKenzie
  • MULTI-CIRCULATION HEAT RECOVERY STEAM GENERATOR FOR ENHANCED OIL RECOVERY/STEAM ASSISTED GRAVITY DRAINAGE
    Publication number: 20210262654
    Abstract: A multi-circulation heat recovery steam generator (HRSG) for steam assisted gravity drainage (SAGD)/Enhanced Oil Recovery (EOR) processes comprises a steam drum internally partitioned to provide a clean side and a dirty side. The clean side downcomer pipe supplies water to one or more generating banks as part of a clean circuit located in a high heat flux zone of the boiler. Boiler water is fed from the clean side of the drum to the dirty side of the drum via natural head differential. Water is then fed through a corresponding downcomer to a dirty generating bank, which is located in a low heat flux zone of the boiler.
    Type: Application
    Filed: May 11, 2021
    Publication date: August 26, 2021
    Inventors: Gary R BARKER, Dong CHEN, Jonathan D FLEMING, Colin Malcolm MacKENZIE
  • Multi-circulation heat recovery steam generator for enhanced oil recovery/steam assisted gravity drainage
    Patent number: 11022299
    Abstract: A multi-circulation heat recovery steam generator (HRSG) for steam assisted gravity drainage (SAGD)/Enhanced Oil Recovery (EOR) processes comprises a steam drum internally partitioned to provide a clean side and a dirty side. The clean side downcomer pipe supplies water to one or more generating banks as part of a clean circuit located in a high heat flux zone of the boiler. Boiler water is fed from the clean side of the drum to the dirty side of the drum via natural head differential. Water is then fed through a corresponding downcomer to a dirty generating bank, which is located in a low heat flux zone of the boiler.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 1, 2021
    Assignee: Babcock & Wilcox Canada Corp.
    Inventors: Gary R Barker, Dong Chen, Jonathan D Fleming, Colin Malcolm MacKenzie
  • MULTI-CIRCULATION HEAT RECOVERY STEAM GENERATOR FOR ENHANCED OIL RECOVERY/STEAM ASSISTED GRAVITY DRAINAGE
    Publication number: 20170130953
    Abstract: A multi-circulation heat recovery steam generator (HRSG) for steam assisted gravity drainage (SAGD)/Enhanced Oil Recovery (EOR) processes comprises a steam drum internally partitioned to provide a clean side and a dirty side. The clean side downcomer pipe supplies water to one or more generating banks as part of a clean circuit located in a high heat flux zone of the boiler. Boiler water is fed from the clean side of the drum to the dirty side of the drum via natural head differential. Water is then fed through a corresponding downcomer to a dirty generating bank, which is located in a low heat flux zone of the boiler.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Inventors: Gary R. Barker, Dong Chen, Jonathan D. Fleming, Colin Malcolm MacKenzie