Patents Assigned to Chevron U.S.A.
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Patent number: 11896861Abstract: A deluge nozzle diversion apparatus can include a collection component having at least one wall that forms a collection cavity, where the collection component has a first end and a second end. The deluge nozzle diversion apparatus can also include an adjustable securing apparatus that is configured to secure the first end of the collection component to a deluge nozzle assembly of a deluge system when the adjustable securing apparatus is in a closed position. The deluge nozzle diversion apparatus can further include a diversion channel coupled to the second end of the collection component, where the diversion channel is adjustable and has a length sufficient to divert a fire protection fluid flowing therethrough to an alternative location. The collection cavity of the collection component can be configured to receive all of the fire protection fluid discharged from a deluge nozzle of the deluge system.Type: GrantFiled: February 4, 2021Date of Patent: February 13, 2024Assignee: Chevron U.S.A. Inc.Inventors: Elmer B. Revilla, Ifeanyi F. Oramulu, Bernard Weng-Keong Leong
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Patent number: 11898100Abstract: Disclosed herein are methods and composition for breaking foam, emulsions, or any combination thereof.Type: GrantFiled: December 14, 2020Date of Patent: February 13, 2024Assignee: CHEVRON U.S.A. INC.Inventors: Gayani W. Pinnawala, Sujeewa S. Palayangoda, Varadarajan Dwarakanath, Mohamad Salman, Mohsen S. Tagavifar
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Patent number: 11891300Abstract: The present disclosure refers in one embodiment to processes for making and transporting clean hydrogen fuel. The processes may involve hydrotreating, hydrocracking, or both hydrotreating and hydrocracking an aromatic feedstock under conditions to obtain a liquid hydrocarbon fuel. The liquid hydrocarbon fuel is hydrogenated to obtain a hydrogen-rich fuel that is transported to a dehydrogenation facility that may also be at or near a hydrogen station. The hydrogen-rich fuel is used to obtain hydrogen and a second liquid hydrocarbon fuel.Type: GrantFiled: November 1, 2021Date of Patent: February 6, 2024Assignee: Chevron U.S.A. INC.Inventors: Bi-Zeng Zhan, Steven Xuqi Song, Trenton Otto, Yaofan Yi
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Patent number: 11892580Abstract: The thickness of subsurface layers if they had remained as they were prior to compaction may be estimated by restoring the volume of void space lost during compaction. Decompacted depths below seafloor, the depths the layers would be if compaction had not occurred, may be determined for the layers. A surrogate decompaction velocity may then be determined by dividing the decompacted depths by the travel times of acoustic waves that reflect off layers within the subsurface region. The decompaction velocity may be used in post-processing of acoustic data to produce a decompacted digital representation of the subsurface region. The decompacted digital representation may be used to directly interpret the thickness of layers prior to compaction, sedimentation rates over time, fault offsets, and other phenomena distorted by compaction.Type: GrantFiled: January 13, 2021Date of Patent: February 6, 2024Assignee: Chevron U.S.A. Inc.Inventor: Robert Lewis Little
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Patent number: 11884879Abstract: Disclosed are compositions and methods for use in oil and gas operations.Type: GrantFiled: February 14, 2022Date of Patent: January 30, 2024Assignees: CHEVRON U.S.A. INC., CHEVRON ORONITE COMPANY LLCInventors: Dennis A. Alexis, Gayani Pinnawala Arachchilage, Varadarajan Dwarakanath, Do Hoon Kim, Taimur Malik, Gregory A. Winslow, Aaron Wilhelm
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Publication number: 20240026239Abstract: A fuel composition is described. The composition contains gasoline and an aryloxy alkylamine additive. The structure of the aryloxy alkylamine additive is given by where the aryloxy alkylamine additive is present in about 10 to about 750 ppm by weight based on total weight of the fuel composition. X is a hydrocarbyl group having 1 or 2 carbon atoms. R1 and R2 are independently hydrogen or substituted hydrocarbyl group having up to 36 carbon atoms.Type: ApplicationFiled: September 15, 2021Publication date: January 25, 2024Applicants: CHEVRON ORONITE COMPANY LLC, CHEVRON U.S.A. INC.Inventors: Man Kit NG, Richard Eugene CHERPECK, Carrie Y. CHAN, Kriston George MENDENHALL, Andrew M. ICKES, Peter A. FUENTES-AFFLICK, Justin WANG
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Method to enhance the self-sealing of well cement leakage pathways using a smart gel cement additive
Patent number: 11879090Abstract: Embodiments of the disclosure include swellable smart gel sealants and methods of using smart gel sealants. In certain embodiments, the smart gel sealants reversibly swell when exposed to a certain trigger, such as carbonic acid and/or sulfuric acid. In specific embodiments, the smart gel is comprised within a cement composition.Type: GrantFiled: August 2, 2022Date of Patent: January 23, 2024Assignees: CHEVRON U.S.A. INC., TRIAD NATIONAL SECURITY, LLCInventors: Nathan James Welch, Hakim Boukhalfa, Robert David Gilbertson, Rajesh S. Nair, Deryck Edward Matthew Williams, Timothy Leo Quirk -
Patent number: 11878260Abstract: A phase separation assembly includes a stand pipe configured to be located at a bottom of a distillation column, the stand pipe for directing a liquid phase of a hydrocarbon fluid through a bottom outlet to a heating assembly; a return conduit configured to direct heated hydrocarbon fluid from the heating assembly into the distillation column; a ring baffle configured to be located within the distillation column above the return conduit; and a horizontal plate configured to be disposed above the stand pipe. The ring baffle directs the heated hydrocarbon fluid around the inner circumferential wall of the distillation column so that vapor and liquid phases can separate. Weir features on the ring baffle can facilitate separation of vapor and liquid flows of the hydrocarbon.Type: GrantFiled: July 30, 2022Date of Patent: January 23, 2024Assignee: CHEVRON U.S.A. INC.Inventor: Huping Luo
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Patent number: 11873455Abstract: Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.Type: GrantFiled: December 30, 2020Date of Patent: January 16, 2024Assignee: Chevron U.S.A. Inc.Inventors: Kenny Peinado, Jifei Jia, Guan-Dao Lei, Jay Parekh, Yihua Zhang
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Patent number: 11873697Abstract: The present disclosure includes a plug for cementing a wellbore. The plug may include a cylinder. The cylinder may include at least one body including a non-conductive material with conductive filaments dispersed within the non-conductive material. The present disclosure also includes float equipment for cementing a wellbore. The float equipment may include a casing segment including an inner surface, drillable material affixed to the inner surface of the casing segment, and a check valve attached to the drillable material. The drillable material may include a non-conductive material and conductive filaments dispersed within the non-conductive material.Type: GrantFiled: August 30, 2019Date of Patent: January 16, 2024Assignees: Halliburton Energy Services, Inc., SDG LLC, Chevron U.S.A. Inc.Inventors: Lonnie Carl Helms, Frank Vinicio Acosta Villarreal, Avinash Gopal Dharne, William M. Moeny, Neal Gregory Skinner
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Publication number: 20240010583Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polyethylene.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Applicant: Chevron U.S.A. Inc.Inventors: Joel E. SCHMIDT, Tengfei LIU, Hye-Kyung C. TIMKEN
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Publication number: 20240010927Abstract: Provided is a composition comprising a blend of a waste plastic and a bio feedstock. Also provided is a process for preparing a stable blend of a plastic and bio feedstock which can be stored or transported if desired. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend can be passed to a conversion unit for conversion of the waste plastic and bio feedstock. The conversion process produces clean monomers for polymerization and chemical intermediates.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Applicant: Chevron U.S.A. Inc.Inventors: Tengfei LIU, Joel E. SCHMIDT, Hye-Kyung C. TIMKEN
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Publication number: 20240010928Abstract: Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polypropylene.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Applicant: Chevron U.S.A. Inc.Inventors: Joel E. SCHMIDT, Tengfei LIU, Hye-Kyung C. TIMKEN
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Publication number: 20240010940Abstract: Provided is a continuous process for converting waste plastic into recycle for chemical production. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a conversion unit. Useful chemicals are recovered, including C3 and C4 olefins and aromatics.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Applicant: Chevron U.S.A. Inc.Inventors: Tengfei LIU, Joel E. SCHMIDT, Hye-Kyung C. TIMKEN
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Patent number: 11865527Abstract: A hydroisomerization catalyst comprising a molecular sieve belonging to the ZSM-48 family of zeolites; an inorganic oxide support; one or more first modifiers selected from Groups 8 to 10; and one or more second modifiers selected from the group consisting of calcium (Ca), chromium (Cr), magnesium (Mg), lanthanum (La), barium (Ba), praseodymium (Pr), strontium (Sr), potassium (K) and neodymium (Nd). The molecular sieve comprises: a silicon oxide to aluminum oxide mole ratio of about 40 to about 220; at least about 70% polytype 6 of the total ZSM-48-type material present in the product; and an additional EUO-type molecular sieve phase in an amount of between about 0 and about 7.0 percent by weight of the total product. The molecular sieve has a morphology characterized as polycrystalline aggregates comprising crystallites collectively having an average aspect ratio of between about 1 and about 8.Type: GrantFiled: January 13, 2021Date of Patent: January 9, 2024Assignee: CHEVRON U.S.A. INC.Inventors: Yihua Zhang, Adeola Florence Ojo, Guan-Dao Lei
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Patent number: 11865524Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided. SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. SSZ-117x may be used in organic compound conversion reactions and/or sorptive processes.Type: GrantFiled: November 19, 2021Date of Patent: January 9, 2024Assignee: Chevron U.S.A. Inc.Inventors: Stacey Ian Zones, Dan Xie, Cong-Yan Chen
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Patent number: 11860324Abstract: A method is described for estimating seismic velocity from seismic data by training a neural network using a subset of a seismic dataset and the velocity model; estimating a second velocity model using the neural network and a second subset of the seismic dataset; and displaying the second velocity model on a graphical user interface. The method may be executed by a computer system.Type: GrantFiled: July 7, 2021Date of Patent: January 2, 2024Assignee: Chevron U.S.A. Inc.Inventor: Enning Wang
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Publication number: 20230415134Abstract: An improved hydroisomerization catalyst system and process for making a base oil product using a combined catalyst system comprising SSZ-91 molecular sieve and SSZ-95 molecular sieve. The catalyst system and process generally involves the use of a catalyst comprising an SSZ-91 molecular sieve and a separate catalyst comprising an SSZ-95 molecular sieve to produce dewaxed base oil products by sequentially contacting the catalysts with a hydrocarbon feedstock. The catalyst system and process provide improved base oil yield along with other beneficial base oil properties.Type: ApplicationFiled: November 11, 2021Publication date: December 28, 2023Applicant: CHEVRON U.S.A. INC.Inventors: Yihua ZHANG, Guan Dao LEI
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Patent number: 11851987Abstract: An obstruction relief tool can include a plurality of walls that includes an inner wall, where the inner wall forms a cavity along a length of the inner wall. The obstruction relief tool can also include a chamber disposed between the plurality of walls, where the chamber has a proximal end and a distal end. The obstruction relief tool can further include an actuation device that is configured to actuate when an obstruction is within the cavity, where the actuation device, when actuated, is configured to open a first aperture in the inner wall that leads to the proximal end of the chamber, where the distal end of the chamber leads to a second aperture in the inner wall, where the first aperture is adjacent to the cavity above the obstruction, and where the second aperture in the inner wall is adjacent to the cavity below the obstruction.Type: GrantFiled: December 10, 2021Date of Patent: December 26, 2023Assignee: CHEVRON U.S.A. INC.Inventors: Patrick James Zimmerman, Sr., Robert Sword Avent, Harold Gordon Riordan
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Patent number: 11845066Abstract: An aluminum-rich molecular sieve material of MFS framework type, designated SSZ-123, is provided. SSZ-123 can be synthesized using 1-ethyl-1-[5-(triethylammonio)pentyl]piperidinium cations as a structure directing agent. SSZ-123 may be used in organic compound conversion and/or sorptive processes.Type: GrantFiled: February 22, 2023Date of Patent: December 19, 2023Assignee: CHEVRON U.S.A. INC.Inventor: Dan Xie