Patents Assigned to Chevron U.S.A. Inc.
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Patent number: 11841479Abstract: Systems and methods are disclosed for identifying subsurface features as a function of position in a subsurface volume of interest. Exemplary implementations may include obtaining target subsurface data; obtaining a conditioned subsurface feature model; applying the conditioned subsurface feature model to the target subsurface data, which may include generating convoluted target subsurface data by convoluting the target subsurface data; generating target subsurface feature map layers by applying filters to the convoluted target subsurface data; detecting potential target subsurface features in the target subsurface feature map layers; masking the target subsurface features; and estimating target subsurface feature data by linking the masked subsurface features to the target subsurface feature data.Type: GrantFiled: July 31, 2020Date of Patent: December 12, 2023Assignees: CHEVRON U.S.A. INC., THE TEXAS A&M UNIVERSITY SYSTEMInventors: Shuxing Cheng, Zhao Zhang, Kellen Leigh Gunderson, Reynaldo Cardona, Zhangyang Wang, Ziyu Jiang
-
Patent number: 11834606Abstract: Embodiments of treating fluid comprising hydrocarbons, water, and polymer being produced from a hydrocarbon-bearing formation are provided. One embodiment comprises adding a concentration of a viscosity reducer to the fluid to degrade the polymer present in the fluid and adding a concentration of a neutralizer to the fluid to neutralize the viscosity reducer in the fluid. The addition of the concentration of the viscosity reducer is in a sufficient quantity to allow for complete chemical degradation of the polymer prior to the addition of the concentration of the neutralizer in the fluid such that excess viscosity reducer is present in the fluid. The addition of the concentration of the neutralizer is sufficiently upstream of any surface fluid processing equipment to allow for complete neutralization of the excess viscosity reducer such that excess neutralizer is present in the fluid prior to the fluid reaching any of the surface fluid processing equipment.Type: GrantFiled: January 21, 2022Date of Patent: December 5, 2023Assignee: CHEVRON U.S.A. INC.Inventors: Sumitra Subrahmanyan, Gayani W. Pinnawala, Sophany Thach, Gregory A. Winslow, Dennis A. Alexis, Harold C. Linnemeyer, Timothy P. Theriot, Les Leszek Jackowski, Francesca Cibotti
-
Patent number: 11834609Abstract: Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises a surfactant and optionally one or more secondary surfactants. Also provided are methods of using the stabilized injection fluids in stimulation operations.Type: GrantFiled: July 31, 2018Date of Patent: December 5, 2023Assignee: CHEVRON U.S.A. INC.Inventors: Dustin L. Walker, Gayani W. Pinnawala, Nabijan Nizamidin, Varadarajan Dwarakanath, Guo-Qing Tang, Dustin J. Lowry, Tetsuo Art Inouye, Taimur Malik
-
Publication number: 20230381760Abstract: Provided is a novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-113. The boron SSZ-113 can be synthesized using 1,3 bis(2,3-dimethyl-1H-imidazolium) propane dications as a structure directing agent. The boron SSZ-113 may be used in organic compound conversion reactions and/or sorptive processes, and in particular, in reforming reactions.Type: ApplicationFiled: May 30, 2023Publication date: November 30, 2023Applicant: Chevron U.S.A. Inc.Inventors: Stacey I. Zones, Cong-Yan Chen
-
Publication number: 20230381759Abstract: A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.Type: ApplicationFiled: May 30, 2023Publication date: November 30, 2023Applicant: Chevron U.S.A. Inc.Inventors: Stacey I. Zones, Cong-Yan Chen
-
Publication number: 20230382746Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-121 is provided which exhibits increased acidity. The SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-121 of increased acidity may be used in organic compound conversion reactions and/or sorptive processes.Type: ApplicationFiled: May 30, 2023Publication date: November 30, 2023Applicant: Chevron U.S.A. Inc.Inventor: Stacey I. Zones
-
Publication number: 20230382745Abstract: A novel synthetic crystalline molecular sieve material, designated SSZ-113 is provided which exhibits increased acidity. The SSZ-113 can be synthesized using 1,3-bis(2,3-dimethyl-1H-imidazolium)propane dications as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-113 of increased acidity may be used in organic compound conversion and/or sorptive processes.Type: ApplicationFiled: May 30, 2023Publication date: November 30, 2023Applicant: Chevron U.S.A. Inc.Inventor: Stacey I. Zones