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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.
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公开(公告)号：US12253641B2
公开(公告)日：2025-03-18
申请号：US18046236
申请日：2022-10-13
Applicant: Chevron U.S.A. Inc.
Inventor： Yonghe J. Sun
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.
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公开(公告)号：US20250085266A1
公开(公告)日：2025-03-13
申请号：US18747985
申请日：2024-06-19
Applicant: Chevron U.S.A. Inc.
Inventor： David Glynn Thomas , Paul Bireta , Travis Samuel Elsdon , Michael John Marnane
Abstract: A cartridge sampler for collecting a target species from an environment for subsequent chemical analysis includes removable collection media having at least one molecule sensor thereon. The cartridge sampler includes a means for tagging a geospatial location and time that the fluid samples are provided to the collection media such that the location and time that the fluid samples are provided to the collection media can be later determined. Also disclosed are systems and methods for collecting species from various environments including a subsurface formation, a pipeline, and gaseous, soil or sub-slab, and aqueous environments. The cartridge sampler is fitted on or within a device designed for moving within each environment.
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公开(公告)号：US20250065312A1
公开(公告)日：2025-02-27
申请号：US18810971
申请日：2024-08-21
Applicant: Chevron U.S.A. Inc.
Inventor： Stacey I. Zones , Cong-Yan Chen
IPC: B01J29/04 , B01J37/00 , B01J37/03 , B01J37/04 , B01J37/06 , B01J37/08 , B01J37/20 , C01B39/48 , C10G35/06
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.
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公开(公告)号：US20250059845A1
公开(公告)日：2025-02-20
申请号：US18797180
申请日：2024-08-07
Applicant: Chevron U.S.A. Inc.
Inventor： Wangming Lu , Khiem Nguyen , William Stephen Averill
IPC: E21B33/035 , G01H17/00 , G05B23/02
Abstract: A method for remotely evaluating fatigue damage of a subsea wellhead may include obtaining a plurality of values associated with measurements of a parameter associated with the fatigue damage of the subsea wellhead during field operations, wherein the measurements are measured by a sensor device positioned separately from and adjacent to the subsea wellhead; executing an algorithm using the measurements to generate a result; comparing the result of the algorithm with a range of acceptable values; and determining that the subsea wellhead has a potential failure when the result falls outside the range of acceptable values.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12223420B2
公开(公告)日：2025-02-11
申请号：US17039403
申请日：2020-09-30
Applicant: Chevron U.S.A. Inc.
Inventor： Baosheng Liang , Chaoshun Hu , Min Li
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.
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公开(公告)号：US12221847B2
公开(公告)日：2025-02-11
申请号：US18459710
申请日：2023-09-01
Applicant: Chevron U.S.A. Inc.
Inventor： Jay Patrick Painter
IPC: E21B33/04
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.
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公开(公告)号：US12215036B2
公开(公告)日：2025-02-04
申请号：US18344530
申请日：2023-06-29
Applicant: Chevron U.S.A. Inc.
Inventor： Kandaswamy Jothimurugesan , Hye-Kyung Timken
Abstract: A process of making a silica-alumina composition having improved properties is provided. The process includes (a) mixing an aqueous solution of a silicon compound and an aqueous solution of an aluminum compound and an acid, while maintaining a pH of the mixed solution in a range of 1 to 3, and obtaining an acidified silica-alumina sol; (b) adding an aqueous solution of a base precipitating agent to the acidified silica-alumina sol to a final pH in a range of 5 to 8, and co-precipitating a silica-alumina slurry, wherein the base precipitating agent is selected from ammonium carbonate, ammonium bicarbonate, and any combination thereof; (c) optionally, hydrothermally aging the silica-alumina slurry to form a hydrothermally aged silica-alumina slurry; and (d) recovering a precipitate solid from the silica-alumina slurry or the hydrothermally aged silica-alumina slurry, wherein the precipitate solid comprises the silica-alumina composition.
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公开(公告)号：US12208297B2
公开(公告)日：2025-01-28
申请号：US18590894
申请日：2024-02-28
Applicant: Chevron U.S.A. Inc.
Inventor： Thomas P. Hoelen , Cesar Ovalles , Adam J. Dassey , Carl W. Lam , Russell E. Cooper , Janelle L. Lewis
Abstract: Disclosed are systems and methods for treating contaminated material. The material is heated by nonconductive and nonconvective heating in a vacuum chamber such that the surface of the material is heated without significant heating of the air within the chamber. The surface of the material is heated to at least a volatilization temperature of the contaminants or to a decomposition temperature of one or more compounds in intimate contact with the contaminants, so that the concentration of contaminants in the material is reduced. Exhaust is removed from the chamber and cooled. A solids and/or liquids collector removes condensed solids and/or liquids and has a gas outlet connected to a vacuum pump.
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公开(公告)号：US20250019250A1
公开(公告)日：2025-01-16
申请号：US18764872
申请日：2024-07-05
Applicant: Chevron U.S.A. Inc.
Inventor： Jesús C. PASCUAL , Stacey Ian ZONES , Cong-Yan CHEN
Abstract: A method for synthesizing a zeolite having an of MFI framework structure is provided. The method includes (i) preparing a reaction mixture comprising a source of aluminum, a source of silicon, a structure directing agent comprising 2,2-dipropylpentane-1-amine, a source of fluoride ions, and water; (ii) heating the reaction mixture under crystallization conditions including a temperature of from 100° C. to 200° C. for a time sufficient to form crystals of the aluminosilicate zeolite; and (iii) recovering the crystals of the aluminosilicate zeolite from the reaction mixture.
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