-
1.发明申请公开(公告)号：US20250020054A1
公开(公告)日：2025-01-16
申请号：US18714681
申请日：2022-12-15
Applicant: Chevron U.S.A. Inc. , CHEVRON U.S.A. INC.
Inventor： Michael James Fuller , Shannon Kirstin Stocks
Abstract: Methods for assessing the effectiveness of an acid stimulation operation in a hydrocarbon well are described herein. The methods use encapsulated tracer particles comprising a tracer material that is coated with a calcium carbonate shell. Different encapsulated tracer particles are placed into different portions of a well. A subsequent acid stimulation operation dissolves the calcium carbonate shell and releases the tracer material. The different tracer materials indicate the effectiveness of the acid stimulation operation in different portions of the well.
-
2.发明申请
公开(公告)号：US20250065311A1
公开(公告)日：2025-02-27
申请号：US18454048
申请日：2023-08-22
Applicant: Chevron U.S.A. Inc.
Inventor： Trenton J. Otto , Bi-Zeng Zhan , Steven Xuqi Song , Christopher Declan Lane
IPC: B01J27/045 , B01J23/10 , C01B3/00 , C07C5/10
Abstract: This disclosure pertains to a supported noble metal catalyst containing noble metal component and a sulfur-containing component being supported on a non-noble metal doped inorganic oxide carrier and uses thereof. The catalyst may be used for the hydrogenation of an aromatic compound. The present disclosure further relates to a process for the partial or complete dehydrogenation of perhydrogenated or partially hydrogenated cyclic hydrocarbons to produce hydrogen.
-
公开(公告)号：US20250065287A1
公开(公告)日：2025-02-27
申请号：US18814252
申请日：2024-08-23
Applicant: Chevron U.S.A. Inc.
Inventor： Xiaoying Ouyang , Huping Luo , Alexander E. Kuperman , Lin Li
Abstract: A reactor uses catalyst blocks for conversion of light hydrocarbons to hydrogen and to liquid hydrocarbons. The catalyst blocks stacked on top of one another within the reactor facilitate conversion of the light hydrocarbons. Electric heaters can be arranged in a variety of orientations within the reactor to supply heat for the conversion reaction. Alternatively, the catalyst blocks can be located within reaction tubes within the reactor and heated by combustion of a fuel adjacent to the reaction tubes. When operated in a regeneration mode, coke that accumulates within the reactor is removed by oxidation.
-
公开(公告)号：US12228463B2
公开(公告)日：2025-02-18
申请号：US17904268
申请日：2021-02-11
Applicant: Advanced Innergy Limited , Chevron U.S.A. Inc.
Inventor： Antonio Critsinelis , Yiannis Constantinides , Will Twelvetrees , Sid Mebarkia , Austin Harbison
IPC: G01L1/10 , E21B17/01 , E21B47/001 , E21B47/007 , E21B47/01 , G01L3/14 , G01M5/00
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.
-
公开(公告)号：US12228028B2
公开(公告)日：2025-02-18
申请号：US17394808
申请日：2021-08-05
Applicant: CHEVRON U.S.A. INC.
Inventor： Weihong Fei , Chaoshun Hu , Paige Rene Given , Gilles Hennenfent , Cory Hoelting
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.
-
公开(公告)号：US20250043649A1
公开(公告)日：2025-02-06
申请号：US18793410
申请日：2024-08-02
Applicant: Chevron U.S.A. Inc.
Inventor： Robert Joseph LaChance , Colburn Bernard Summers , Andrew James Wilson , Tyler Chance Vanderslice , Jonathan Michael Moore , Clint Edward Concord , Jacqueline Marie Smith
IPC: E21B33/04
Abstract: A casing running rotary insert can include a base having a first aperture that traverses therethrough. The casing running rotary insert can also include a rotary table engagement feature that extends from a bottom surface of the base, where the rotary table engagement feature is configured to engage a complementary feature of a rotary table to fix a position of the base relative to the rotary table, and where the aperture in the base is configured to align with a second aperture in the rotary table when the rotary table engagement feature is engaged with the complementary feature of the rotary table. The casing running rotary insert can further include a casing bowl engagement feature that extends from a top surface of the base, where the casing bowl engagement feature is configured to engage a casing bowl to fix a position of the casing bowl relative to the base.
-
公开(公告)号：US12215276B2
公开(公告)日：2025-02-04
申请号：US18160710
申请日：2023-01-27
Applicant: CHEVRON U.S.A. INC.
Inventor： Sujeewa S. Palayangoda , Kerry Kennedy Spilker , Sumitra Subrahmanyan , Gayani W. Pinnawala , Sophany Thach , Gregory A. Winslow , Dennis Arun Alexis , Harold Charles Linnemeyer , Timothy P. Theriot , Les Leszek Jackowski , Francesca Cibotti
Abstract: Described herein are methods of treating fluid including hydrocarbons, water, and polymer being produced from a hydrocarbon-bearing formation. The methods include 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 viscosity reducer is buffered at a pH of 7 or less. 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.
-
公开(公告)号：US12209226B2
公开(公告)日：2025-01-28
申请号：US18264083
申请日：2022-03-24
Applicant: CHEVRON ORONITE COMPANY LLC , CHEVRON U.S.A. INC.
Inventor： Jiun-Le Shih , Chung-Hao Kuo , Charles Paul Loeper , Jeanelle Smoot
IPC: C10M133/08 , C10L1/22 , C10M141/06
Abstract: Method for preventing or reducing low speed pre-ignition events in a spark-ignited internal combustion engine is provided. The method includes supplying to the engine the lubricant composition comprising a primary additive having a structure given by or a salt thereof. R1 and R2 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, or hydroxyl group. R3 and R4 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, amino, or hydroxyl group or wherein R3 and R4 are part of a cyclic group. R5 is C1-C100 hydrocarbyl group, carboxyl group, ether, or hydroxyl group. Lastly, p is 0 to 2, n is 1 to 5, m is 0 to 2, and p+n+m is less than 6.
-
公开(公告)号：US12209018B2
公开(公告)日：2025-01-28
申请号：US17568409
申请日：2022-01-04
Applicant: CHEVRON U.S.A. INC.
Inventor： Steven Xuqi Song , Bi-Zeng Zhan , Yaofan Yi
IPC: C01B3/00 , B01J23/745
Abstract: The present disclosure refers to systems and methods for the production, storage, and transportation of hydrogen. In a representative embodiment a reactor system comprises a fluidized bed combustor configured for reduced metal oxide oxidation and heat generation without significant greenhouse gas emission and/or with readily capturable emissions. The reactor system also comprises a liquid organic hydrogen carrier dehydrogenation reactor. The fluidized bed combustor is operatively coupled to the liquid organic hydrogen carrier dehydrogenation reactor. Advantageously, at least a portion of heat generated by the fluidized bed combustor may be transferred to the liquid organic hydrogen carrier dehydrogenation reactor. In this manner hydrogen production and transportation is both energy efficient, low carbon intensity and cost-effective.
-
公开(公告)号：US20250019604A1
公开(公告)日：2025-01-16
申请号：US18898849
申请日：2024-09-27
Applicant: Chevron U.S.A. Inc.
Inventor： Ling JIAO , Bi-Zeng ZHAN , Don BUSHEE , Theodorus Ludovicus Michael MAESEN , Hye-Kyung TIMKEN , Richard DUTTA , Jay PAREKH
Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.
