Patents by Inventor Gary A. Foulds

Gary A. Foulds 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: 10519379
    Abstract: Techniques are described for producing a bitumen product and recovering solvent from a solvent-diluted heavy hydrocarbon stream, which can have configurations and operation of an indirect heat exchanger to enhance performance. The system can have three solvent recovery stages. The indirect heat exchanger can have a location and operation to mitigate risks associated with exchanger failures. The solvent-diluted hydrocarbon stream can be preheated with a downstream solvent-depleted stream, and the pressure of the latter can be higher than that of the former to avoid solvent leaking into the hydrocarbon-enriched stream. The heat exchanger can be located in between the second and third stages, so that solvent leaked into the second stage output can be removed in the third stage so that the final product hydrocarbon stream can remain at low solvent contents.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 31, 2019
    Assignee: FORT HILLS ENERGY L.P.
    Inventors: Jeffrey Lindmark, Jung Seob Kim, Gary Foulds
  • Patent number: 9956503
    Abstract: A solvent diluted bitumen is produced by a method that includes adding paraffinic solvent to bitumen froth to form a solvent diluted bitumen froth, and discharging the solvent diluted bitumen froth into a vessel, such that settlement of the solvent diluted bitumen froth in the interior of the vessel establishes a heavier phase zone, a lighter phase zone, and an interface. A discharge point is located above the interface and within the lighter phase zone. Lighter phases separate up toward an overflow outlet of the vessel while heavier phases separate down toward an underflow outlet of the vessel. The solvent diluted bitumen is collected from the overflow outlet, and a solvent diluted underflow stream is collected from the underflow outlet.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: May 1, 2018
    Assignee: Fort Hills Energy L.P.
    Inventors: Shawn Van Der Merwe, John Khai-Quang Diep, Mohammed Reza Shariati, Gary Foulds
  • Publication number: 20180044594
    Abstract: Techniques are described for producing a bitumen product and recovering solvent from a solvent-diluted heavy hydrocarbon stream, which can have configurations and operation of an indirect heat exchanger to enhance performance. The system can have three solvent recovery stages. The indirect heat exchanger can have a location and operation to mitigate risks associated with exchanger failures. The solvent-diluted hydrocarbon stream can be preheated with a downstream solvent-depleted stream, and the pressure of the latter can be higher than that of the former to avoid solvent leaking into the hydrocarbon-enriched stream. The heat exchanger can be located in between the second and third stages, so that solvent leaked into the second stage output can be removed in the third stage so that the final product hydrocarbon stream can remain at low solvent contents.
    Type: Application
    Filed: June 29, 2017
    Publication date: February 15, 2018
    Inventors: Jeffrey Lindmark, Jung Seob Kim, Gary Foulds
  • Publication number: 20170368478
    Abstract: A solvent diluted bitumen is produced by a method that includes adding paraffinic solvent to bitumen froth to form a solvent diluted bitumen froth, and discharging the solvent diluted bitumen froth into a vessel, such that settlement of the solvent diluted bitumen froth in the interior of the vessel establishes a heavier phase zone, a lighter phase zone, and an interface. A discharge point is located above the interface and within the lighter phase zone. Lighter phases separate up toward an overflow outlet of the vessel while heavier phases separate down toward an underflow outlet of the vessel. The solvent diluted bitumen is collected from the overflow outlet, and a solvent diluted underflow stream is collected from the underflow outlet.
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Inventors: SHAWN VAN DER MERWE, JOHN KHAI-QUANG DIEP, MOHAMMED REZA SHARIATI, GARY FOULDS
  • Patent number: 9789422
    Abstract: An apparatus and method for separating a feed such as bitumen froth feed are provided. The apparatus comprises a vessel having a top, side walls, and a base. An inlet delivers feed to the vessel interior whereby settling of the feed establishes a heavier phase zone in the vicinity of the base and a lighter phase zone above an interface with the heavier phase zone. The height/diameter ratio of the vessel, the dimensions and position of the inlet and the fluid properties of the feed are selected to allow a feed velocity of the feed discharging from the inlet into the interior to dissipate in the lighter phase zone as the discharged feed entrains lighter phases above the interface and spreads across the vessel interior such that the lighter phases of the feed separate up to an overflow outlet and the heavier phases separate down to an underflow outlet.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: October 17, 2017
    Assignee: Fort Hills Energy L.P.
    Inventors: Shawn Van Der Merwe, John Khai-Quang Diep, Mohammed Reza Shariati, Gary Foulds
  • Publication number: 20120145653
    Abstract: An apparatus and method for separating a feed such as bitumen froth feed are provided. The apparatus comprises a vessel having a top, side walls, and a base. An inlet delivers feed to the vessel interior whereby settling of the feed establishes a heavier phase zone in the vicinity of the base and a lighter phase zone above an interface with the heavier phase zone. The height/diameter ratio of the vessel, the dimensions and position of the inlet and the fluid properties of the feed are selected to allow a feed velocity of the feed discharging from the inlet into the interior to dissipate in the lighter phase zone as the discharged feed entrains lighter phases above the interface and spreads across the vessel interior such that the lighter phases of the feed separate up to an overflow outlet and the heavier phases separate down to an underflow outlet.
    Type: Application
    Filed: October 3, 2011
    Publication date: June 14, 2012
    Applicant: FORT HILLS ENERGY L.P.
    Inventors: SHAWN VAN DER MERWE, JOHN KHAI-QUANG DIEP, MOHAMMED REZA SHARIATI, GARY FOULDS
  • Patent number: 6149859
    Abstract: The present invention is an integrated process and apparatus for supplying at least a portion of the reducing gas feedstock to a reduction reactor, such as a reactor for the direct reduction of iron, wherein the reducing gas contacts a feed material at a mean operating gas pressure and effects reduction of the feed material to provide a reduced product. The integrated process includes gasifying a hydrocarbonaceous feedstock in a partial oxidation reaction to produce a synthesis gas which comprises hydrogen, and carbon monoxide at a pressure substantially greater than the mean operating gas pressure in the reduction reactor. The synthesis gas is expanded to lower its pressure to substantially the mean operating gas pressure in the DRI reduction reactor to thereby form the reducing gas feedstock at the pressure conditions used for the DRI reaction.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: November 21, 2000
    Assignee: Texaco Inc.
    Inventors: Frederick C. Jahnke, James S. Falsetti, Gary A. Foulds, Geoffrey R. Rigby