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: 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
  • 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: 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: 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