Patents by Inventor John Segerstrom

John Segerstrom 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: 11242735
    Abstract: A process is provided for recovering hydrocarbons, such as heavy oils, from a subterranean reservoir. The process includes providing a subcritical or a supercritical aqueous fluid at a high temperature and high pressure to the underground hydrocarbon reservoir, injecting the aqueous fluid into the reservoir to heat the hydrocarbons in the reservoir, and recovering the heated hydrocarbons from the reservoir. In some cases, the supercritical fluid is also used to upgrade the hydrocarbons and/or facilitate the transportation of the hydrocarbons from the production field to another location, such as a refinery. Advantageously, isentropic expansion may be employed anywhere in the system for a more efficient and effective processes and systems.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: February 8, 2022
    Assignee: Chevron U.S.A. INC.
    Inventors: Stein J. Storslett, John Segerstrom
  • Publication number: 20210156237
    Abstract: A process is provided for recovering hydrocarbons, such as heavy oils, from a subterranean reservoir. The process includes providing a subcritical or a supercritical aqueous fluid at a high temperature and high pressure to the underground hydrocarbon reservoir, injecting the aqueous fluid into the reservoir to heat the hydrocarbons in the reservoir, and recovering the heated hydrocarbons from the reservoir. In some cases, the supercritical fluid is also used to upgrade the hydrocarbons and/or facilitate the transportation of the hydrocarbons from the production field to another location, such as a refinery. Advantageously, isentropic expansion may be employed anywhere in the system for a more efficient and effective processes and systems.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 27, 2021
    Applicant: CHEVRON U.S.A. INC.
    Inventors: STEIN J. STORSLETT, JOHN SEGERSTROM
  • Patent number: 10907455
    Abstract: A process is provided for recovering hydrocarbons, such as heavy oils, from a subterranean reservoir. The process includes providing a supercritical aqueous fluid at a high temperature and high pressure to the underground hydrocarbon reservoir, injecting the aqueous fluid into the reservoir to heat the hydrocarbons in the reservoir, and recovering the heated hydrocarbons from the reservoir. In some cases, the supercritical fluid is also used to upgrade the hydrocarbons and/or facilitate the transportation of the hydrocarbons from the production field to another location, such as a refinery.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 2, 2021
    Assignee: Chevron U.S.A. Inc.
    Inventor: John A. Segerstrom
  • Patent number: 10808923
    Abstract: A high efficiency multi-stage duct fired heat recovery steam generator (HRSG) is provided to generate steam for use in thermal enhanced oil recovery (EOR) applications. The HRSG is equipped with a plurality of duct burners in series and a plurality of evaporators for transferring heat from the duct burners to the water to generate steam, with at least one evaporator corresponding to each of the duct burners. Each evaporator is arranged downstream from the corresponding duct burner. At least one perforated plate is configured to disperse and distribute available oxygen within a subsequent duct burner. Hot exhaust gas from a gas turbine (over 1000° F.) is directed to the duct burners in series, allowing further combustion and maximizing thermal efficiency for the HRSG to have a thermal efficiency of at least 92%, and for the exhaust gas exiting the HRSG to contain oxygen in a range of 2% to 8%.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 20, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventor: John A. Segerstrom
  • Publication number: 20190024883
    Abstract: A high efficiency multi-stage duct fired heat recovery steam generator (HRSG) is provided to generate steam for use in thermal enhanced oil recovery (EOR) applications. The HRSG is equipped with a plurality of duct burners in series and a plurality of evaporators for transferring heat from the duct burners to the water to generate steam, with at least one evaporator corresponding to each of the duct burners. Each evaporator is arranged downstream from the corresponding duct burner. At least one perforated plate is configured to disperse and distribute available oxygen within a subsequent duct burner. Hot exhaust gas from a gas turbine (over 1000° F.) is directed to the duct burners in series, allowing further combustion and maximizing thermal efficiency for the HRSG to have a thermal efficiency of at least 92%, and for the exhaust gas exiting the HRSG to contain oxygen in a range of 2% to 8%.
    Type: Application
    Filed: September 26, 2018
    Publication date: January 24, 2019
    Inventor: John A. SEGERSTROM
  • Patent number: 9255043
    Abstract: Disclosed is a liquid crude hydrocarbon composition containing (a) a liquid crude hydrocarbon having an API gravity of less than or equal to about 20; and (b) a minor amount of a blend comprising (i) one or more hydrocarbon-containing solvents having an aromatic content of at least about 10 wt. %; and (ii) one or more asphaltene modifiers selected from the group consisting of an aromatic sulfonic acid or salt thereof, an aliphatic sulfonic acid or salt thereof and an alkyl-substituted hydroxyaromatic carboxylic acid or salt thereof. Also disclosed is a method for transporting a liquid crude hydrocarbon having an API gravity of less than or equal to about 20.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: February 9, 2016
    Assignee: Chevron Oronite Company LLC
    Inventors: Cesar Ovalles, John Segerstrom, Estrella Rogel, Curt Campbell
  • Publication number: 20150362173
    Abstract: A high efficiency multi-stage duct fired heat recovery steam generator (HRSG) is provided to generate steam for use in thermal enhanced oil recovery (EOR) applications. The HRSG is equipped with a plurality of duct burners in series and a plurality of evaporators for transferring heat from the duct burners to the water to generate steam, with at least one evaporator corresponding to each of the duct burners. Each evaporator is arranged downstream from the corresponding duct burner. Hot exhaust gas from a gas turbine (over 1000° F.) is directed to the duct burners in series, allowing further combustion and maximizing thermal efficiency for the HRSG to have a thermal efficiency of at least 92%, and for the exhaust gas exiting the HRSG to a reduced oxygen level of less than 5%.
    Type: Application
    Filed: June 16, 2015
    Publication date: December 17, 2015
    Inventor: John A. Segerstrom
  • Patent number: 9028680
    Abstract: A method and system for handling viscous liquid crude hydrocarbons is disclosed. The method involves (a) solvent deasphalting at least a portion of an asphaltene-containing liquid crude hydrocarbon feedstock to form an asphaltene fraction and a deasphalted oil (DAO) fraction essentially free of asphaltenes; (b) adjusting the density of the asphaltene fraction to substantially the same density of a carrier for the asphaltene fraction; (c) forming coated asphaltene particles from the asphaltene fraction of step (b); (d) slurrying the coated asphaltene particles with the carrier; and (e) transporting the slurry to a treatment facility or a transportation carrier.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: May 12, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Gunther Hans Dieckmann, John Segerstrom, Cesar Ovalles, Estrella Rogel, Vasudevan Sampath, Donald L. Kuehne, Hariprasad Janakiram Subramani, Dennis John O'Rear
  • Publication number: 20140224491
    Abstract: A process is provided for recovering hydrocarbons, such as heavy oils, from a subterranean reservoir. The process includes providing a supercritical aqueous fluid at a high temperature and high pressure to the underground hydrocarbon reservoir, injecting the aqueous fluid into the reservoir to heat the hydrocarbons in the reservoir, and recovering the heated hydrocarbons from the reservoir. In some cases, the supercritical fluid is also used to upgrade the hydrocarbons and/or facilitate the transportation of the hydrocarbons from the production field to another location, such as a refinery.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 14, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventor: John A. Segerstrom
  • Patent number: 8517097
    Abstract: A method of transporting carbon dioxide and crude oil in a pipeline is disclosed. The method includes providing supercritical carbon dioxide and heavy or extra heavy crude oil produced from a subterranean reservoir. The crude oil is mixed with the supercritical carbon dioxide to form a mixture having a viscosity less than the viscosity of the crude oil prior to mixing. The mixture is transported in a pipeline from a first location to a second location. The pipeline is maintained at sufficient pressures and temperatures such that any unsaturated carbon dioxide remains in a supercritical state while the mixture is transported through the pipeline.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: August 27, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventor: John A. Segerstrom
  • Publication number: 20130048079
    Abstract: Disclosed is a liquid crude hydrocarbon composition containing (a) a liquid crude hydrocarbon having an API gravity of less than or equal to about 20; and (b) a minor amount of a blend comprising (i) one or more hydrocarbon-containing solvents having an aromatic content of at least about 10 wt. %; and (ii) one or more asphaltene modifiers selected from the group consisting of an aromatic sulfonic acid or salt thereof, an aliphatic sulfonic acid or salt thereof and an alkyl-substituted hydroxyaromatic carboxylic acid or salt thereof. Also disclosed is a method for transporting a liquid crude hydrocarbon having an API gravity of less than or equal to about 20.
    Type: Application
    Filed: August 31, 2011
    Publication date: February 28, 2013
    Inventors: Cesar Ovalles, John Segerstrom, Estrella Rogel, Curtis B. Campbell
  • Publication number: 20120090220
    Abstract: A method and system for handling viscous liquid crude hydrocarbons is disclosed. The method involves (a) solvent deasphalting at least a portion of an asphaltene-containing liquid crude hydrocarbon feedstock to form an asphaltene fraction and a deasphalted oil (DAO) fraction essentially free of asphaltenes; (b) adjusting the density of the asphaltene fraction to substantially the same density of a carrier for the asphaltene fraction; (c) forming coated asphaltene particles from the asphaltene fraction of step (b); (d) slurrying the coated asphaltene particles with the carrier; and (e) transporting the slurry to a treatment facility or a transportation carrier.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 19, 2012
    Applicant: CHEVRON U. S. A. INC.
    Inventors: Gunther Hans Dieckmann, John Segerstrom, Cesar Ovalles, Estrella Rogel, Vasudevan Sampath, Donald L. Kuehne, Hariprasad Janakiram Subramani, Dennis John O'Rear
  • Publication number: 20110114340
    Abstract: A method of transporting carbon dioxide and crude oil in a pipeline is disclosed. The method includes providing supercritical carbon dioxide and heavy or extra heavy crude oil produced from a subterranean reservoir. The crude oil is mixed with the supercritical carbon dioxide to form a mixture having a viscosity less than the viscosity of the crude oil prior to mixing. The mixture is transported in a pipeline from a first location to a second location. The pipeline is maintained at sufficient pressures and temperatures such that any unsaturated carbon dioxide remains in a supercritical state while the mixture is transported through the pipeline.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 19, 2011
    Applicant: Chevron U.S.A. Inc.
    Inventor: John A. SEGERSTROM
  • Publication number: 20050021465
    Abstract: A strategic business method for financial institutions includes the steps of establishing a strategic metric, setting measurable goals using the established strategic metric, communicating the goals effectively, and measuring and reporting progress in reaching the goals. A strategic business tool for financial institutions includes structure for establishing a strategic metric, structure for setting measurable goals using the established strategic metric, structure for communicating the goals effectively, and structure for measuring and reporting progress in reaching the goals.
    Type: Application
    Filed: January 23, 2004
    Publication date: January 27, 2005
    Inventor: John Segerstrom