Patents Assigned to Chevron U.S.A.
  • Patent number: 12286588
    Abstract: The present disclosure is directed to polyanionic surfactants, surfactant mixtures, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making polyanionic surfactants are also described.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: April 29, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Gayani W. Pinnawala, Sujeewa S. Palayangoda, Gregory A. Winslow, Varadarajan Dwarakanath
  • Patent number: 12286602
    Abstract: A process involves sequentially treating a plurality of lipid feedstocks comprising a set of lipid feedstocks each having a chloride content of at least about 2 ppm with a metal oxide catalyst on an oxide support under first treating conditions to produce respective treated streams of the set of lipid feedstocks having a chloride content less than 1 ppm until a given one of the respective treated streams has a chloride content greater than 1 ppm and the metal oxide catalyst is converted to a spent metal oxide catalyst, converting the spent metal oxide catalyst to a rejuvenated metal oxide catalyst, and treating one or more additional lipid feedstocks each having a chloride content of at least about 2 ppm with the rejuvenated metal oxide catalyst under second treating conditions to produce one or more respective treated streams each having a chloride content less than 1 ppm.
    Type: Grant
    Filed: February 6, 2024
    Date of Patent: April 29, 2025
    Assignee: Chevron U.S.A. Inc.
    Inventor: Sven Ivar Hommeltoft
  • Patent number: 12287447
    Abstract: A group of wells may be located within a region of interest. Multiple scenarios of boundary locations within the group of wells may be obtained. Boundary likelihood curves for the wells may be generated. Different number and/or locations of boundaries within different scenarios of boundary locations may be synthetized into the boundary likelihood curves. A visual representation of the boundary likelihood curves may be generated. The visual representation of the boundary likelihood curves may be used to automatically select and/or guide manual selection of boundary locations in the region of interest.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: April 29, 2025
    Assignee: Chevron U.S.A. Inc.
    Inventors: Robert Chadwick Holmes, Fabien Jean Nicolas Laugier
  • Patent number: 12281064
    Abstract: Methods for dehydrogenation of perhydro-benzyltoluene are described. The representative two stage reaction processes described herein provide cost-effective high amount of conversion to hydrogen and/or other beneficial products.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: April 22, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Christopher Declan Lane, Steven Xuqi Song, Bi-Zeng Zhan, Trenton J. Otto, Michael J. Girgis, Yaofan Yi
  • Patent number: 12281054
    Abstract: A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.
    Type: Grant
    Filed: June 10, 2024
    Date of Patent: April 22, 2025
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bong Kyu Chang, Hye-Kyung Cho Timken, Michelle K. Young
  • Patent number: 12275893
    Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.
    Type: Grant
    Filed: February 9, 2024
    Date of Patent: April 15, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
  • Patent number: 12271957
    Abstract: A graphical user interface provides visualization of operation tasks for a well ordered in a sequence. The graphical user interface shows different types of timing for the operation tasks, such as planned timing, estimated timing, and actual timing for the operation tasks. Different types of timing are arranged in a hierarchy so that setting one type of timing for an operation task overrides another type of timing for the operation task. Changes to timing of an operation task are automatically propagated to other operation tasks.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: April 8, 2025
    Assignee: Chevron U.S.A. Inc.
    Inventors: Brandon Allen Mason, Randy Todd Genzer, Andrea Richardson
  • Patent number: 12258302
    Abstract: A process for producing high octane alkylate is provided. The process involves reacting isobutane and ethylene using an ionic liquid catalyst. Reaction conditions can be chosen to assist in attaining, or to optimize, desirable alkylate yields and/or properties.
    Type: Grant
    Filed: March 19, 2024
    Date of Patent: March 25, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Bong-Kyu Chang, Hye-Kyung Cho Timken, Huping Luo
  • Patent number: 12257607
    Abstract: A process for reducing the salinity of salt containing material (SCM) includes introducing the SCM into a wash system configured to sequentially wash the SCM with water having decreasing salinity levels across a plurality of mixing tanks arranged in series; introducing feed water into the wash system in a countercurrent flow relative to the SCM; discharging washed SCM from the wash system, the washed SCM having a lower salinity compared to the SCM that is initially introduced into the wash system; and discharging brine from the wash system, the brine being generated in a mixing tank that initially receives the SCM into the wash system.
    Type: Grant
    Filed: October 4, 2023
    Date of Patent: March 25, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Joonkyoung Han, John B. Trenery, Jr.
  • Patent number: 12253641
    Abstract: A method is described for seismic amplitude analysis that uses a set of artificial and individually separable reflectors consistent with dip fields in the subsurface volume of interest to define an AVA basis functions; the AVA basis functions are used in true-3D AVA modeling and true-3D AVA inversion. The inversion result and well logs representative of the subsurface volume of interest are used to train a model to create a rock property prediction model. The method may apply the rock property prediction model to a second seismic image to generate a rock property volume. The method is executed by a computer system.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: March 18, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Yonghe J. Sun
  • Patent number: 12247162
    Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.
    Type: Grant
    Filed: February 9, 2024
    Date of Patent: March 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
  • Patent number: 12246969
    Abstract: A method is disclosed making a molecular of TON framework type having unique properties. The method uses 1,3,4-trimethylimidazolium cations as a structure directing agent and a combined source of silicon and aluminum selected from alumina-coated silica and aluminosilicate zeolites. The obtained molecular sieve can be used in processes for dewaxing paraffinic hydrocarbon feedstocks.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: March 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Joel Edward Schmidt, Adeola Florence Ojo
  • Publication number: 20250073635
    Abstract: In one embodiment is provided an energy-efficient post-combustion CO2 capturing process utilizing protic ionic liquids made of an organic superbase and a weak acid in the presence of moisture. The concept is demonstrated in one embodiment with the ionic liquid, 1,8-diazabiciclo(5.4.0)undec-7-enium imidazolate, [DBUH][Im].
    Type: Application
    Filed: August 27, 2024
    Publication date: March 6, 2025
    Applicant: Chevron U.S.A. Inc.
    Inventors: Dominic BURNS, Hye-Kyung C. TIMKEN, John HOLBREY, Huping LUO, Evan HATAKEYAMA
  • Publication number: 20250065312
    Abstract: A novel synthetic crystalline molecular sieve material, designated boron ITQ-21, is provided. The boron ITQ-21 can be synthesized using an N,N-diethyl-5,8-dimethyl-2-azonium bicyclo [3.2.2] nonane cation as a structure directing agent. The boron ITQ-21 may be used in organic compound conversion reactions and/or sorptive processes.
    Type: Application
    Filed: August 21, 2024
    Publication date: February 27, 2025
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Cong-Yan Chen
  • Patent number: 12228028
    Abstract: Systems and methods for estimating reservoir productivity as a function of position in a subsurface volume of interest are disclosed. Exemplary implementations may: obtain an initial depth uncertainty model; obtain training depth uncertainty parameter values from the non-transient storage medium; obtain corresponding training depth uncertainty values; generate a trained depth uncertainty model by training the initial depth uncertainty model using the training depth uncertainty parameter values and the corresponding training depth uncertainty values; and store the trained depth uncertainty model.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: February 18, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Weihong Fei, Chaoshun Hu, Paige Rene Given, Gilles Hennenfent, Cory Hoelting
  • Patent number: 12228463
    Abstract: A device (10) for monitoring strain of an elongate member (12) is deployed underwater. The device (10) comprises a first clamp (14) configured to embrace and couple to the elongate member (12) at a first axial location, a second clamp (16) configured to embrace and couple to the elongate member at a second axial location separated from the first axial location, and a sensor which is responsive to an angle between the first clamp and the second clamp.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: February 18, 2025
    Assignees: CHEVRON U.S.A. INC., ADVANCED INNERGY LIMITED
    Inventors: Antonio Critsinelis, Yiannis Constantinides, Will Twelvetrees, Sid Mebarkia, Austin Harbison
  • Patent number: 12228548
    Abstract: A structure including a substrate and a coating over the substrate is acoustically excited to measure acoustic response in the structure. The measured acoustic response in the structure is filtered to remove acoustic response of the substrate and determine acoustic response of the coating. The acoustic response of the coating is used to inspect the coating for failure.
    Type: Grant
    Filed: March 13, 2022
    Date of Patent: February 18, 2025
    Assignees: Chevron U.S.A. Inc., Triad National Security, LLC
    Inventors: Erica Marie Jacobson, Ian Thomas Cummings, Eric Brian Flynn, Adam Joseph Wachtor, Benjamin M Chaloner-Gill, Brock Genter, Martin Quintero, Ryan S. Sanders
  • Patent number: 12221842
    Abstract: A wellhead housing of a wellhead assembly can include a body having a top end, a bottom end, and a cavity that traverses its length between the top end and the bottom end. The wellhead housing can also include a main channel that traverses the body from the cavity at a distal end of the main channel to an outer perimeter of the body at a proximal end of the main channel, where the proximal end of the main channel is located closer to the top end of the body compared to the distal end of the main channel, and where the distal end of the main channel is located closer to the bottom end of the body compared to the proximal end of the main channel.
    Type: Grant
    Filed: November 2, 2023
    Date of Patent: February 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Jay Patrick Painter
  • Patent number: 12223420
    Abstract: A method is described for predicting permeability including receiving a 3-D earth model including a volume of interest; generating 2-D property images; receiving 2-D fracture images; training a physics-guided neural network using the 2-D fracture images; and predicting permeability using the physics-guided neural network applied to the 2-D property images. The method is executed by a computer system.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Baosheng Liang, Chaoshun Hu, Min Li
  • Patent number: 12221847
    Abstract: A tubing hanger retention system for a wellhead assembly can include a retention ring that is configured to fit over a top portion of a tubing hanger of the wellhead assembly, where the retention ring comprises a plurality of retention ring channels. The tubing hanger retention system can also include multiple retention pin receiving features configured to be disposed, at least in part, within multiple tubing spool channels of a tubing spool. The tubing hanger retention system can further include multiple retention pins configured to be received by the retention pin receiving features, where each retention pin includes an engagement feature configured to be received by a retention pin receiving feature to place the retention pin in a captured state, where the engagement feature of each retention pin is further configured to enter into an engaged state with a retention ring channel when the retention pin is moved inward.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: February 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Jay Patrick Painter