公开(公告)号：US20240426395A1

公开(公告)日：2024-12-26

申请号：US18339163

申请日：2023-06-21

Applicant: Chevron U.S.A. Inc. ,  Chevron Australia Pty Ltd

Inventor： Hailing An ,  Scott Eric Weatherwax ,  Miao Miao ,  Minh Duc Vo

IPC: F16K37/00

Abstract: A method for remotely evaluating a hydraulic valve may include obtaining multiple values associated with measurements of a parameter, where the measurements are measured by multiple sensor devices, where the sensor devices are configured to measure the parameter at multiple locations along a network of hydraulic lines that circulates a hydraulic fluid with respect to an actuator of the hydraulic valve, and where the parameter is associated with an actuator of the hydraulic valve during a subterranean field operation; executing an algorithm using the measurements to generate a result; comparing the result of the algorithm with a range of acceptable values, where the range of acceptable values is established using prior results of the algorithm; and determining that the hydraulic valve has a potential failure when the result falls outside the range of acceptable values.

公开(公告)号：US20240425764A1

公开(公告)日：2024-12-26

申请号：US18748732

申请日：2024-06-20

Applicant: CHEVRON U.S.A. INC.

Inventor： Sven Ivar Hommeltoft ,  Steven Xuqi Song

IPC: C10G3/00 ,  B01J8/00 ,  B01J8/18 ,  B01J8/26 ,  B01J21/04 ,  B01J23/02 ,  B01J23/92 ,  B01J38/02 ,  C10L1/06 ,  C10L1/08

Abstract: A lipid feedstock including fatty acid(s) is treated in a process flow through a moving bed reactor with catalyst to produce a treated stream. The catalyst may include metal oxide catalyst on a particulate oxide support. The catalyst may be transferred, using a catalyst withdrawal line, from the bottom of the moving bed reactor to a fluidized bed regenerator, and regenerated. The catalyst may be transferred from the fluidized bed regenerator to a cyclone that separates the catalyst from flue gas. The catalyst may be transferred from the cyclone to the top of the moving bed reactor using a catalyst feed line. A first separation gas may be flowed into the catalyst feedline, and a second separation gas may be flowed into the bottom of the moving bed reactor or into the catalyst withdrawal line, to generate pressure differentials driving the process flow through the moving bed reactor.

公开(公告)号：US20240424334A1

公开(公告)日：2024-12-26

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

IPC: A62D3/15 ,  A62D3/40 ,  B01D46/02 ,  B01D53/00 ,  B01D53/18 ,  B01D53/40 ,  B01D53/78

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.

公开(公告)号：US20240411042A1

公开(公告)日：2024-12-12

申请号：US18331102

申请日：2023-06-07

Applicant: Chevron U.S.A. Inc.

Inventor： Alexei Olegovich Bolshakov ,  Kristoffer Thomas Walker

IPC: G01V1/48

Abstract: A method is described for method of processing seismic data including obtaining seismic data, wherein the seismic data was acquired with a plurality of azimuthal receiver elements of a logging-while-drilling tool while a drill bit is drilling a wellbore; decomposing the seismic data into monopole and dipole modes; cross-correlating each receiver pair of the monopole mode and of the dipole mode to generate monopole and dipole waveforms; identifying a time of direct arrival of acoustic energy from the drill bit and applying bulk time shift for the waveforms; stacking corresponding waveforms from the bulk time shift to improve signal-to-noise ratio; processing the stacked monopole and dipole waveform to isolate reflected arrivals; performing migration to obtain a monopole migrated image and a dipole migrated image; and classifying the interface as either a fracture or an impedance contrast. The method is executed by a computer system.

公开(公告)号：US12163396B2

公开(公告)日：2024-12-10

申请号：US17971319

申请日：2022-10-21

Applicant: Chevron U.S.A. Inc.

Inventor： Jay Patrick Painter ,  Kevin Frank Leo Hejl

IPC: E21B33/04 ,  E21B33/072

Abstract: A tubing spool of a wellhead assembly can include a body having a body cavity, a first channel, and a second channel disposed therein, where the body cavity is configured to receive a tubing hanger used to couple to and suspend a tubing string, where the first channel is configured to be in communication with a tubing string cavity within the tubing string, where the second channel is configured to be in communication with an annulus located between the tubing string and a production casing, and where the first channel and the second channel are each configured to facilitate flow of at least one of a plurality of fluids in either direction independently of each other. The tubing spool can also include a first back pressure valve disposed within the first channel and a second back pressure valve disposed within the second channel.

公开(公告)号：US20240344614A1

公开(公告)日：2024-10-17

申请号：US18202119

申请日：2023-05-25

Applicant: Chevron U.S.A. Inc.

Inventor： Jay Patrick Painter

IPC: F16K3/02 ,  F16K27/04

CPC classification number: F16K3/0236 ,  F16K3/0254 ,  F16K27/044

Abstract: A gate valve can include a valve body and a bore positioned within the valve body, where the bore traverses a width of the valve body and comprises an inlet and an outlet. The gate valve can also include a gate slidably disposed within the bore. The gate valve can further include a seat disposed around the bore and adjacent to the gate and the valve body, where the seat includes a seat body having a spring system and an inner surface, where the inner surface is adjacent to the gate, where the spring system includes a cavity disposed in the seat body and a spring section positioned between the cavity and the inner surface, where the spring section protrudes outward relative to the inner surface, where the spring section is configured to move inward and reduce a volume of the cavity when the gate contacts the spring section.

公开(公告)号：US12110455B2

公开(公告)日：2024-10-08

申请号：US18065345

申请日：2022-12-13

Applicant: Chevron U.S.A. Inc.

Inventor： Caleb Kimbrell Carroll ,  Seung Jin Han ,  Said Rachid Daher

IPC: C09K8/80

CPC classification number: C09K8/805

Abstract: A method of making a hydraulic fracturing slurry can include contacting an aqueous solution comprising calcium ions with a carbon dioxide source producing a carbonated aqueous solution. Substrate particles can be submerged in the carbonated aqueous solution to produce a calcium carbonate coated proppant wherein the carbon dioxide is sequestered in the calcium carbonate. The calcium coated proppant can be combined with hydraulic fracturing fluid to produce a hydraulic fracturing slurry. Alternatively, the calcium carbonate coated proppant can be combined with silica sand to produce a proppant composition used in a hydraulic fracturing slurry.

公开(公告)号：US20240328300A1

公开(公告)日：2024-10-03

申请号：US18619615

申请日：2024-03-28

Applicant: Chevron U.S.A. Inc.

Inventor： Wangming Lu ,  William Stephen Averill

IPC: E21B47/001 ,  E21B33/035

CPC classification number: E21B47/001 ,  E21B33/035

Abstract: The wave characteristics of the water (e.g., ocean) above a wellhead may be used to determine a wave-induced wellhead fatigue damage rate for the wellhead, and the current profile of water around a riser connected to the wellhead may be used to determine a riser vortex-induced vibration caused fatigue damage rate for the wellhead. The wave-induced wellhead fatigue damage rate and the riser vortex-induced vibration caused fatigue damage rate for the wellhead may be combined to obtain the total wellhead fatigue damage rate for the wellhead, which may be used to make operational decisions, such as connections or disconnections, for the well.

公开(公告)号：US12106192B2

公开(公告)日：2024-10-01

申请号：US17189004

申请日：2021-03-01

Applicant: CHEVRON U.S.A. INC.

Inventor： Mohamed Ibrahim Mohamed ,  Larry A. Bowden, Jr. ,  Xin Feng

IPC: G06N20/00 ,  G06F16/901 ,  G06F16/93

CPC classification number: G06N20/00 ,  G06F16/9024 ,  G06F16/93

Abstract: Multiple sets of documents for different domains may be used to train multiple domain-specific models. A graph model may be generated to include nodes representing concepts included within the domain-specific models. A white space not including any nodes within the graph model may be identified. Analysis of the white space may be performed based on two or more nodes at periphery of the white space. Words/documents that cover the white space may be generated. Novelty of concepts may be readily assessed using the graph model/white space.

公开(公告)号：US20240299917A1

公开(公告)日：2024-09-12

申请号：US18177309

申请日：2023-03-02

Applicant: CHEVRON U.S.A. INC.

Inventor： Christopher Michael LEW ,  Rebecca Edyne MACLEAN ,  Kurt Owen JENSEN

IPC: B01J29/70 ,  B01J35/02 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  C01B39/48

CPC classification number: B01J29/70 ,  B01J35/40 ,  B01J37/0018 ,  B01J37/031 ,  B01J37/04 ,  C01B39/48 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/03

Abstract: A method is disclosed for producing small crystal forms of zeolite SSZ-81. The method includes forming a reaction mixture containing an alumina-coated silica sol, a source of an alkali metal, a structure directing agent containing 1,5-bis(N-methylpiperidinium)pentane dications and/or 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dications, a source of hydroxide ions, and water; and subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the zeolite. The compositions made according to that method, as well as the various uses of the compositions, are also disclosed.